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JP2014071138A - Karaoke device - Google Patents

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JP2014071138A
JP2014071138A JP2012214609A JP2012214609A JP2014071138A JP 2014071138 A JP2014071138 A JP 2014071138A JP 2012214609 A JP2012214609 A JP 2012214609A JP 2012214609 A JP2012214609 A JP 2012214609A JP 2014071138 A JP2014071138 A JP 2014071138A
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frequency characteristic
output
voice
frequency
music
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Hidetaro Mishima
秀太郎 三島
Norihiko Murase
範彦 村瀬
Asami Kawasaki
麻美 川▲崎▼
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Xing Inc
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Xing Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a karaoke device with easy setting of an acoustic field suitable for a use condition.SOLUTION: A karaoke device is capable of setting a frequency characteristic pertaining to performance output of music by taking into consideration a voice of a singer inputted from a microphone 48 in performance output of the music by including voice frequency characteristic calculation means 80 for calculating the frequency characteristic of the voice by carrying out frequency analysis of the singer's voice inputted from the microphone 48, and output frequency characteristic correction means 84 for correcting the frequency characteristic pertaining to performance output set by an output frequency characteristic setting means 82 based on the frequency characteristic of the voice calculated by the voice frequency characteristic calculation means 80 corresponding to the voice of the singer.

Description

本発明は、多数の楽曲のうちから選択される楽曲の演奏出力を行うカラオケ装置に関し、特に、使用条件に適した音場を簡便に設定する機能に関する。   The present invention relates to a karaoke apparatus that performs performance output of a music selected from a large number of music, and particularly relates to a function for easily setting a sound field suitable for use conditions.

多数の楽曲のうちから選択される楽曲を出力させると共に、音声入力装置から入力される音声情報を増幅して出力させるカラオケ装置が知られている。斯かるカラオケ装置によれば、予め記憶装置に記憶された多数のカラオケ演奏曲からリモコン装置等により選択（選曲）されたカラオケ演奏曲の音楽情報を出力させると共に、そのカラオケ演奏曲の歌詞情報を含む映像をその出力に同期して画面に表示させることで、所望の歌のカラオケ演奏を楽しむことができる。   2. Description of the Related Art A karaoke apparatus that outputs music selected from a large number of music and amplifies and outputs audio information input from an audio input device is known. According to such a karaoke apparatus, music information of a karaoke performance song selected (selected) by a remote control device or the like from a large number of karaoke performance songs stored in advance in a storage device is output, and lyrics information of the karaoke performance music is output. By displaying the included video on the screen in synchronization with the output, it is possible to enjoy the karaoke performance of the desired song.

ところで、前記カラオケ装置から出力される音の聞こえ方は、そのカラオケ装置が設置されている部屋の広さ、形、壁の材質等に応じて変化する。そこで、設置場所に応じて最適な音場を設定できる機能を備えたカラオケ装置が提案されている。例えば、特許文献１に記載された音楽再生装置がそれである。この技術によれば、カラオケ装置が利用される環境においてそのカラオケ装置から出力された音情報を集音し、集音された音情報を周波数解析してその周波数特性を算出するＤＳＰ周波数解析器と、そのＤＳＰ周波数解析器により算出されるカラオケ装置から出力されたピンクノイズの周波数特性が予め定められた推奨周波数特性と一致するようにその出力特性を自動変更するＤＳＰとを含むことから、音響に関する専門的な知識を一切要することなく、使用条件に適した音場を設定することができる。   By the way, how to hear the sound output from the karaoke device varies depending on the size, shape, wall material, and the like of the room in which the karaoke device is installed. Therefore, a karaoke apparatus having a function capable of setting an optimum sound field according to the installation location has been proposed. For example, this is the music playback device described in Patent Document 1. According to this technology, a DSP frequency analyzer that collects sound information output from the karaoke device in an environment where the karaoke device is used, performs frequency analysis on the collected sound information, and calculates its frequency characteristics; And a DSP that automatically changes its output characteristic so that the frequency characteristic of pink noise output from the karaoke device calculated by the DSP frequency analyzer matches a predetermined recommended frequency characteristic. A sound field suitable for use conditions can be set without requiring any specialized knowledge.

特開２００４−３１８０７５号公報JP 2004-318075 A

しかし、一般的なカラオケ装置においては、楽曲データに基づいて演奏出力される演奏音と、音声入力装置から入力される歌唱者の音声とがミキシングされてスピーカから出力されるため、前記従来の技術では、その歌唱者の音声の周波数特性によっては前記カラオケ装置から出力される音（演奏音及び歌唱音声の合成音）の聞こえ方が必ずしも最適とはならないことが考えられる。例えば、前述のようにして設定された前記楽曲の演奏出力に係る周波数特性と、音声入力装置から入力される歌唱者の音声の周波数特性とで、相対的に大きい周波数帯域が重なってしまうと、その周波数帯域の音が耳に障る等して逆に聞きづらくなってしまうおそれがある。前記従来の技術では、斯かる不具合を解消することができなかった。このような課題は、カラオケ装置の更なる使用性向上を意図して本発明者等が鋭意研究を継続する過程において新たに見出したものである。   However, in a general karaoke apparatus, since the performance sound output based on the music data and the voice of the singer input from the audio input device are mixed and output from the speaker, the conventional technology Then, depending on the frequency characteristics of the voice of the singer, it is conceivable that the way in which the sound output from the karaoke apparatus (the synthesized sound of the performance sound and the singing voice) is not necessarily optimal. For example, when a relatively large frequency band overlaps with the frequency characteristic related to the performance output of the music set as described above and the frequency characteristic of the singer's voice input from the voice input device, On the other hand, there is a risk that the sound in the frequency band may be difficult to hear due to an obstacle to the ear. In the conventional technique, such a problem cannot be solved. Such a subject was newly found in the process in which the present inventors continued intensive research with the intention of further improving the usability of the karaoke apparatus.

本発明は、以上の事情を背景として為されたものであり、その目的とするところは、使用条件に適した音場を簡便に設定するカラオケ装置を提供することにある。   The present invention has been made against the background of the above circumstances, and an object of the present invention is to provide a karaoke apparatus that easily sets a sound field suitable for use conditions.

斯かる目的を達成するために、本発明の要旨とするところは、多数の楽曲のうちから選択される楽曲の演奏出力を行うと共に、音声入力装置から入力される音声を増幅して出力させるカラオケ装置であって、前記楽曲の演奏出力に係る周波数特性として、その演奏出力に係る複数の周波数帯域毎のゲインを設定する出力周波数特性設定手段と、前記音声入力装置から入力される歌唱者の音声の周波数解析を行うことで、その音声の周波数特性として、その音声の複数の周波数帯域毎の音圧レベルを算出する音声周波数特性算出手段と、前記出力周波数特性設定手段により設定された前記楽曲の演奏出力に係る周波数特性を、その楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段により算出されたその音声の周波数特性に基づいて補正する出力周波数特性補正手段とを、備えたことを特徴とするものである。   In order to achieve such an object, the gist of the present invention is to provide a karaoke which outputs a performance of a music selected from a large number of music and amplifies and outputs a voice input from a voice input device. An output frequency characteristic setting means for setting gains for a plurality of frequency bands related to the performance output as frequency characteristics related to the performance output of the music; and a voice of the singer input from the voice input device The frequency analysis of the sound, the sound frequency characteristic calculating means for calculating the sound pressure level for each of a plurality of frequency bands of the sound as the frequency characteristics of the sound, and the music set by the output frequency characteristic setting means The frequency characteristic related to the performance output is compensated based on the frequency characteristic of the voice calculated by the voice frequency characteristic calculating means corresponding to the voice of the singer of the song. And an output frequency characteristic correcting means for, is characterized in that it comprises.

このようにすれば、前記楽曲の演奏出力に係る周波数特性として、その演奏出力に係る複数の周波数帯域毎のゲインを設定する出力周波数特性設定手段と、前記音声入力装置から入力される歌唱者の音声の周波数解析を行うことで、その音声の周波数特性として、その音声の複数の周波数帯域毎の音圧レベルを算出する音声周波数特性算出手段と、前記出力周波数特性設定手段により設定された前記楽曲の演奏出力に係る周波数特性を、その楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段により算出されたその音声の周波数特性に基づいて補正する出力周波数特性補正手段とを、備えたものであることから、前記楽曲の演奏出力に際して、前記音声入力装置から入力される歌唱者の音声を加味してその楽曲の演奏出力に係る周波数特性を設定することができる。すなわち、使用条件に適した音場を簡便に設定するカラオケ装置を提供することができる。   If it does in this way, the output frequency characteristic setting means which sets the gain for every several frequency band which concerns on the performance output as a frequency characteristic which concerns on the performance output of the said music, and the singer input from the said voice input device Audio frequency characteristic calculation means for calculating the sound pressure level for each of a plurality of frequency bands of the voice as the frequency characteristic of the voice by performing frequency analysis of the voice, and the music set by the output frequency characteristic setting means Output frequency characteristic correction means for correcting the frequency characteristic related to the performance output of the music based on the frequency characteristic of the voice calculated by the voice frequency characteristic calculation means corresponding to the voice of the singer of the music Therefore, when the performance of the music is output, the frequency of the performance output of the music is taken into account with the voice of the singer input from the voice input device. It is possible to set the properties. That is, it is possible to provide a karaoke apparatus that can easily set a sound field suitable for use conditions.

ここで、好適には、前記音声周波数特性算出手段により算出された音声の周波数特性を、その音声に対応する歌唱者と対応付けてデータベースに記憶させるものであり、前記出力周波数特性補正手段は、前記楽曲の演奏出力に際して、前記出力周波数特性設定手段により設定された周波数特性を、その楽曲の歌唱者に対応して前記データベースに記憶されたその歌唱者の音声の周波数特性に基づいて補正するものである。このようにすれば、前記楽曲の演奏出力に際して、その楽曲の歌唱者の音声の周波数特性を前記データベースから読み出して使用することで、好適且つ実用的な態様で前記楽曲の演奏出力に係る周波数特性を設定することができる。   Here, preferably, the frequency characteristic of the voice calculated by the voice frequency characteristic calculation unit is stored in a database in association with a singer corresponding to the voice, and the output frequency characteristic correction unit is When the musical performance is output, the frequency characteristic set by the output frequency characteristic setting means is corrected based on the frequency characteristic of the singer's voice stored in the database corresponding to the singer of the musical piece. It is. In this way, when the performance of the music is output, the frequency characteristics of the music singer's voice are read out from the database and used, so that the frequency characteristics related to the performance output of the music in a suitable and practical manner. Can be set.

また、好適には、前記出力周波数特性補正手段は、前記出力周波数特性設定手段により設定された演奏出力に係るゲインが相対的に大きい周波数帯域が、その楽曲の歌唱者の音声の音圧レベルが相対的に大きい周波数帯域に相当する場合には、その周波数帯域における演奏出力のゲインを低下させる補正を行うものである。このようにすれば、楽曲の演奏出力に係る周波数特性と、歌唱者の音声の周波数特性とで、相対的に大きい周波数帯域が重なることで、その周波数帯域の音が耳に障る等して逆に聞きづらくなることを好適に抑制することができる。   Preferably, the output frequency characteristic correcting means has a frequency band in which the gain related to the performance output set by the output frequency characteristic setting means is relatively large, and the sound pressure level of the voice of the song singer is When it corresponds to a relatively large frequency band, correction is performed to reduce the gain of the performance output in that frequency band. In this way, the frequency characteristics related to the performance output of the music and the frequency characteristics of the singer's voice overlap with each other so that the relatively large frequency bands overlap so that the sound in the frequency bands is detrimental to the ear. It can be suitably suppressed that it becomes difficult to hear.

また、好適には、前記出力周波数特性補正手段は、前記出力周波数特性設定手段により設定された演奏出力に係るゲインが相対的に小さい周波数帯域が、その楽曲の歌唱者の音声の音圧レベルが相対的に小さい周波数帯域に相当する場合には、その周波数帯域における演奏出力のゲインを増加させる補正を行うものである。このようにすれば、楽曲の演奏出力に係る周波数特性と、歌唱者の音声の周波数特性とで、相対的に小さい周波数帯域が重なることで、その周波数帯域の音が小さすぎて聞きづらくなることを好適に抑制することができる。   Preferably, the output frequency characteristic correcting means has a frequency band in which the gain related to the performance output set by the output frequency characteristic setting means is relatively small, and the sound pressure level of the voice of the song singer is When it corresponds to a relatively small frequency band, correction is performed to increase the gain of the performance output in that frequency band. In this way, the frequency characteristics related to the performance output of the music and the frequency characteristics of the singer's voice overlap with each other in a relatively small frequency band, so that the sound in that frequency band is too small to be hard to hear. Can be suitably suppressed.

また、好適には、前記出力周波数特性設定手段は、前記カラオケ装置が利用される環境においてそのカラオケ装置から出力された音情報を前記音声入力装置により集音し、その音情報の複数の周波数帯域毎の音圧レベルが予め定められた推奨周波数特性と一致するように前記演奏出力に係る周波数特性を設定するものである。このようにすれば、前記カラオケ装置が利用される環境に合わせて自動設定された前記楽曲の演奏出力に係る周波数特性を、歌唱者の音声の周波数特性に基づいて補正することができる。   Preferably, the output frequency characteristic setting means collects sound information output from the karaoke device in an environment where the karaoke device is used by the sound input device, and a plurality of frequency bands of the sound information. The frequency characteristic relating to the performance output is set so that the sound pressure level for each of the sound pressure levels matches a predetermined recommended frequency characteristic. If it does in this way, the frequency characteristic which concerns on the performance output of the said music automatically set according to the environment where the said karaoke apparatus is utilized can be correct | amended based on the frequency characteristic of a singer's audio | voice.

また、好適には、前記楽曲の演奏出力の進行に応じて経時的に変化する複数の周波数帯域毎の音圧レベルを算出する楽曲周波数特性算出手段を備え、前記出力周波数特性補正手段は、前記出力周波数特性設定手段により設定された前記楽曲の演奏出力に係る周波数特性を、その楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段により算出されたその音声の周波数特性及びその楽曲に対応して前記楽曲周波数特性算出手段により算出された周波数特性に基づいて補正するものである。このようにすれば、楽曲の経時的な周波数特性の変化を加味することで、前記楽曲の演奏出力に係る周波数特性を更にきめ細かく設定することができる。   Preferably, the apparatus further comprises music frequency characteristic calculating means for calculating a sound pressure level for each of a plurality of frequency bands that changes over time according to the progress of performance output of the music, and the output frequency characteristic correcting means includes the The frequency characteristic related to the performance output of the music set by the output frequency characteristic setting means is the frequency characteristic of the voice calculated by the voice frequency characteristic calculation means corresponding to the voice of the singer of the music and the music. Correspondingly, correction is performed based on the frequency characteristic calculated by the music frequency characteristic calculating means. In this way, the frequency characteristics related to the performance output of the music can be set more finely by taking into account changes in the frequency characteristics of the music over time.

本発明が好適に適用されるカラオケ装置の構成を例示するブロック線図である。It is a block diagram which illustrates the composition of the karaoke device to which the present invention is applied suitably. 図１のカラオケ装置のＣＰＵに備えられた制御機能の要部を説明する機能ブロック線図である。It is a functional block diagram explaining the principal part of the control function with which CPU of the karaoke apparatus of FIG. 1 was equipped. 図１のカラオケ装置による出力周波数特性の設定について説明する図である。It is a figure explaining the setting of the output frequency characteristic by the karaoke apparatus of FIG. 図１のカラオケ装置において設定された演奏出力の周波数特性を補正する制御の一例について説明する図である。It is a figure explaining an example of the control which correct | amends the frequency characteristic of the performance output set in the karaoke apparatus of FIG. 図１のカラオケ装置において設定された演奏出力の周波数特性を補正する制御の他の一例について説明する図である。It is a figure explaining another example of the control which correct | amends the frequency characteristic of the performance output set in the karaoke apparatus of FIG. 図１のカラオケ装置により出力される楽曲の演奏進行に応じた各時点におけるその楽曲の周波数特性を表す曲線の推移の一例を示す図である。It is a figure which shows an example of transition of the curve showing the frequency characteristic of the music in each time according to the performance progress of the music output by the karaoke apparatus of FIG. 図１のカラオケ装置のＣＰＵによる出力周波数特性設定制御の一例の要部を説明するフローチャートである。It is a flowchart explaining the principal part of an example of the output frequency characteristic setting control by CPU of the karaoke apparatus of FIG. 図１のカラオケ装置のＣＰＵによる音声周波数特性算出制御の一例の要部を説明するフローチャートである。It is a flowchart explaining the principal part of an example of the audio | voice frequency characteristic calculation control by CPU of the karaoke apparatus of FIG. 図１のカラオケ装置のＣＰＵによる出力周波数特性補正制御の一例の要部を説明するフローチャートである。It is a flowchart explaining the principal part of an example of the output frequency characteristic correction | amendment control by CPU of the karaoke apparatus of FIG.

以下、本発明の好適な実施例を図面に基づいて詳細に説明する。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本発明が好適に適用されるカラオケ装置１０の構成を例示するブロック線図である。この図１に示すように、本実施例のカラオケ装置１０は、中央演算処理装置であるＣＰＵ１２と、読出専用メモリであるＲＯＭ１４と、随時書込読出メモリであるＲＡＭ１６と、記憶装置であるハードディスク１８と、グラフィックスチップ（グラフィックスボード）等の映像処理部２０と、サウンドチップ（サウンドボード）等の音声処理部２２と、操作パネル２４と、表示制御部２６及び入力制御部２８を介して前記ＣＰＵ１２に接続されたタッチパネルディスプレイ３０と、通信インターフェイス３６と、ＬＡＮインターフェイス３８と、無線通信部４０と、ビデオ出力端子４２を介して前記映像処理部２０に接続された映像表示装置であるディスプレイ４４と、オーディオ入力端子４６を介して前記音声処理部２２に接続された音声入力装置であるマイクロフォン４８と、オーディオ出力端子５０を介して前記音声処理部２２に接続された音声増幅装置であるアンプ５２と、そのアンプ５２に備えられた音声出力装置であるスピーカ５４とを、備えて構成されている。   FIG. 1 is a block diagram illustrating the configuration of a karaoke apparatus 10 to which the present invention is preferably applied. As shown in FIG. 1, a karaoke apparatus 10 according to this embodiment includes a CPU 12 that is a central processing unit, a ROM 14 that is a read-only memory, a RAM 16 that is a write / read memory as needed, and a hard disk 18 that is a storage device. And the video processing unit 20 such as a graphics chip (graphic board), the audio processing unit 22 such as a sound chip (sound board), the operation panel 24, the display control unit 26, and the input control unit 28. A touch panel display 30 connected to the CPU 12, a communication interface 36, a LAN interface 38, a wireless communication unit 40, and a display 44 which is a video display device connected to the video processing unit 20 via a video output terminal 42. Audio connected to the audio processing unit 22 via the audio input terminal 46 A microphone 48 that is a power device, an amplifier 52 that is a sound amplifying device connected to the sound processing unit 22 via an audio output terminal 50, and a speaker 54 that is a sound output device provided in the amplifier 52. It is prepared for.

前記ＣＰＵ１２は、前記ＲＡＭ１６の一時記憶機能を利用しつつ前記ＲＯＭ１４に予め記憶された所定のプログラムに基づいて電子情報を処理・制御する所謂マイクロコンピュータであり、前記カラオケ装置１０における各種制御を実行する。すなわち、前記操作パネル２４、タッチパネルディスプレイ３０、或いは電子早見本装置６８等により所定の楽曲（カラオケ演奏曲）が選曲入力された場合、その選曲入力された楽曲を歌唱者（選曲入力主体である利用者）のユーザＩＤと対応付けて前記ＲＡＭ１６等に設けられた予約曲テーブルに登録する選曲予約制御、その予約曲テーブルの演奏順に従って前記ハードディスク１８から前記ＲＡＭ１６に選曲されたカラオケ演奏曲の演奏情報及び歌詞情報（楽曲データ）を読み出す楽曲データ読出制御、楽曲の演奏進行に応じてそのＲＡＭ１６から前記音声処理部２２へ演奏情報を送信する演奏出力制御、その演奏出力制御に際して前記ＲＡＭ１６に展開された歌詞情報に基づいて歌詞文字映像を生成して前記映像処理部２０へ送信する歌詞文字映像出力制御、前記演奏出力制御に際して前記映像処理部２０を制御して所定の背景映像を再生させる背景映像出力制御、及びカラオケ演奏が行われていない間すなわち曲間において、新譜情報、選曲ランキング、店舗広告等の曲間情報を出力させる曲間情報出力制御等の基本的な制御に加え、後述する本実施例の出力周波数特性設定制御及び出力周波数特性補正制御等の各種制御を実行する。   The CPU 12 is a so-called microcomputer that processes and controls electronic information based on a predetermined program stored in advance in the ROM 14 using the temporary storage function of the RAM 16, and executes various controls in the karaoke apparatus 10. . That is, when a predetermined music piece (karaoke performance music piece) is selected and input by the operation panel 24, the touch panel display 30, or the electronic quick sample apparatus 68, the song selection input music is used by a singer (a music selection input subject). The music selection reservation control registered in the reserved music table provided in the RAM 16 or the like in association with the user ID of the user), and the performance information of the karaoke performance music selected in the RAM 16 from the hard disk 18 in accordance with the performance order of the reserved music table And music data reading control for reading out lyric information (music data), performance output control for transmitting performance information from the RAM 16 to the sound processing unit 22 as the performance of the music progresses, and the performance output control. A lyric character image is generated based on the lyric information and transmitted to the image processing unit 20. Lyric character video output control, background video output control for controlling the video processing unit 20 to reproduce a predetermined background video during the performance output control, and new music information, music selection while karaoke performance is not performed, that is, between songs Various controls such as output frequency characteristic setting control and output frequency characteristic correction control of this embodiment to be described later are executed in addition to basic control such as inter-song information output control for outputting inter-song information such as ranking and store advertisement. .

前記映像処理部２０は、前記ディスプレイ４４に表示される画面（映像）の描画に係る各種制御を行う。例えば、前記ＣＰＵ１２から供給されるデータに基づいてグラフィックスメモリにそのデータを書き込み、そのデータを読み出すことによって前記ビデオ出力端子４２を介して前記ディスプレイ４４に所定の画面を表示させる制御を行う。具体的には、前記カラオケ装置１０による楽曲の演奏出力（カラオケ演奏）に際して、前記ＣＰＵ１２において生成された歌詞文字映像等の文字映像（テロップ）を出力させたり、前記ハードディスク１８に記憶されたＭＰＥＧ（Moving Picture Experts Group）データ等の背景映像情報に基づいて所定の背景映像を再生（デコード）させたり、その背景映像の前面側に前記歌詞文字映像を合成させて前記ディスプレイ４４に表示させたり、その歌詞文字映像を前記楽曲の演奏進行に応じて順次色替わり表示させる等の各種表示制御を行う。なお、本実施例においては、前記映像処理部２０により前記ディスプレイ４４の表示制御を行う一方、後述する表示制御部２６により前記タッチパネルディスプレイ３０（表示装置３２）の表示制御を行う態様について説明するが、前記映像処理部２０により前記タッチパネルディスプレイ３０の表示制御をも行う態様も考えられる。この態様において、前記表示制御部２６は必ずしも設けられなくともよい。   The video processing unit 20 performs various controls related to drawing of a screen (video) displayed on the display 44. For example, based on the data supplied from the CPU 12, the data is written into the graphics memory, and the data is read out so that a predetermined screen is displayed on the display 44 through the video output terminal 42. Specifically, when the karaoke apparatus 10 outputs a musical performance (karaoke performance), a text image (telop) such as a lyric character image generated by the CPU 12 is output, or MPEG (stored in the hard disk 18) is stored. Based on background video information such as Moving Picture Experts Group) data, a predetermined background video is reproduced (decoded), the lyrics character video is synthesized on the front side of the background video and displayed on the display 44, Various display controls are performed such as displaying lyric text images in a color-changed manner as the music progresses. In the present embodiment, a mode in which display control of the display 44 is performed by the video processing unit 20 and display control of the touch panel display 30 (display device 32) is performed by the display control unit 26 described later will be described. A mode in which display control of the touch panel display 30 is also performed by the video processing unit 20 is also conceivable. In this aspect, the display control unit 26 is not necessarily provided.

前記音声処理部２２は、ＦＭ音源やＰＣＭ音源等の各種音源を備え、前記カラオケ装置１０による音声出力に係る各種制御を行う。好適には、電子回路により音を合成し、各種音色を発生するシンセサイザ（synthesizer）を備えている。このシンセサイザは、前記ハードディスク１８から読み出されて送られて来るカラオケ演奏曲の演奏情報に基づいて楽器の演奏信号等の音楽信号を生成する。前記シンセサイザは、好適には、ＭＩＤＩ（Musical Instrument Digital Interface）端子を備えたものであり、前記演奏情報は、例えばＭＩＤＩ形式のデータである。そのＭＩＤＩデータに基づいて前記シンセサイザにより生成された音楽信号は、前記マイクロフォン４８から前記オーディオ入力端子４６を介して入力される利用者（演奏者）の歌声とミキシングされ、前記オーディオ出力端子５０を介して前記アンプ５２に供給されてそのアンプ５２により増幅されて前記スピーカ５４から出力される。   The sound processing unit 22 includes various sound sources such as an FM sound source and a PCM sound source, and performs various controls related to sound output by the karaoke apparatus 10. Preferably, a synthesizer that synthesizes sound by an electronic circuit and generates various timbres is provided. The synthesizer generates a music signal such as a musical instrument performance signal based on performance information of a karaoke performance song read from the hard disk 18 and sent. The synthesizer preferably includes a MIDI (Musical Instrument Digital Interface) terminal, and the performance information is, for example, data in the MIDI format. The music signal generated by the synthesizer based on the MIDI data is mixed with the singing voice of the user (performer) input from the microphone 48 via the audio input terminal 46, and via the audio output terminal 50. Is supplied to the amplifier 52, amplified by the amplifier 52, and output from the speaker 54.

前記操作パネル２４は、前記カラオケ装置１０の利用者が歌いたい楽曲を選択したり、楽曲の演奏出力に係る音程を調整したり、演奏と歌との音量バランスを調整したり、その他、エコー、音量、トーン等の各種調整を行うための操作ボタン（スイッチ）或いはつまみを備えた入力装置である。また、前記タッチパネルディスプレイ３０は、画像（映像）を表示させると共に利用者の操作に応じて前記カラオケ装置１０への操作入力を行う装置であり、そのタッチパネルディスプレイ３０に所定の画像（映像）を表示させる表示装置３２と、利用者の指や図示しない備え付けのペン等による前記タッチパネルディスプレイ３０への接触により入力を行うタッチパネル３４とを、備えている。前記表示制御部２６は、前記ＣＰＵ１２から供給される情報に基づいて前記表示装置３２に表示される画面（映像）の描画を制御する映像処理部である。前記入力制御部２８は、前記タッチパネル３４により入力される操作入力情報を前記ＣＰＵ１２等に供給する入力処理部である。以上の構成を備えていることで、前記タッチパネルディスプレイ３０は、前記ディスプレイ４４とは別に第２の映像表示装置として機能すると共に、前記カラオケ装置１０の利用者が歌いたい楽曲を選択したり、楽曲の演奏出力に係る音程を調整したり、演奏と歌との音量バランスを調整したり、その他、エコー、音量、トーン等の各種調整を行うための入力装置として機能する。   The operation panel 24 selects a song that the user of the karaoke apparatus 10 wants to sing, adjusts the pitch related to the performance output of the song, adjusts the volume balance between the performance and the song, The input device includes operation buttons (switches) or knobs for performing various adjustments such as volume and tone. The touch panel display 30 is a device that displays an image (video) and inputs an operation to the karaoke device 10 according to a user's operation. The touch panel display 30 displays a predetermined image (video). And a touch panel 34 that performs input by touching the touch panel display 30 with a user's finger, an unillustrated pen, or the like. The display control unit 26 is a video processing unit that controls drawing of a screen (video) displayed on the display device 32 based on information supplied from the CPU 12. The input control unit 28 is an input processing unit that supplies operation input information input from the touch panel 34 to the CPU 12 and the like. With the above configuration, the touch panel display 30 functions as a second video display device separately from the display 44, and the user of the karaoke device 10 selects a song that the user wants to sing, It functions as an input device for adjusting the pitch related to the performance output, adjusting the volume balance between the performance and the song, and performing various adjustments such as echo, volume and tone.

前記カラオケ装置１０は、前記通信インターフェイス３６及びネットワーク接続端子５６を介して通信回線６０に接続されており、同様にその通信回線６０に接続された他の機器との相互間でその通信回線６０を介して情報の通信が可能とされている。前記通信回線６０は、例えば公衆電話回線、ＡＤＳＬ回線、或いは光ファイバ回線等から構成されるＷＷＷ（World Wide Web）等のインターネットに接続された広域情報通信網である。前記カラオケ装置１０は、好適には、前記通信回線６０を介して図示しないサーバ（ホスト装置）に接続されており、そのサーバから楽曲データ（カラオケデータ）、背景映像情報、及び曲間情報等のデジタルコンテンツ（Digital Contents）の配信を受け付けるものである。すなわち、前記カラオケ装置１０は、好適には、所定の通信回線に接続されてサーバとの間で各種情報の送受信を行う通信カラオケ装置であるが、斯かる通信回線に接続されない非通信型のカラオケ装置等にも本発明は好適に適用される。   The karaoke apparatus 10 is connected to a communication line 60 via the communication interface 36 and the network connection terminal 56. Similarly, the karaoke apparatus 10 is connected to other devices connected to the communication line 60. Communication of information is possible through the network. The communication line 60 is a wide area information communication network connected to the Internet such as a WWW (World Wide Web) constituted by, for example, a public telephone line, an ADSL line, or an optical fiber line. The karaoke device 10 is preferably connected to a server (host device) (not shown) via the communication line 60, and from the server, music data (karaoke data), background video information, inter-song information, etc. It accepts distribution of digital contents. That is, the karaoke apparatus 10 is preferably a communication karaoke apparatus that is connected to a predetermined communication line and transmits / receives various information to / from the server, but is not connected to such a communication line. The present invention is also suitably applied to devices and the like.

前記ＬＡＮインターフェイス３８は、前記カラオケ装置１０をＬＡＮ接続端子６２を介してＬＡＮ（local area network）６４に接続するための接続器であり、そのように前記ＬＡＮ６４に接続されることで、前記カラオケ装置１０は、同様に前記ＬＡＮ６４に接続された電子早見本装置６８等の他の機器との間で情報の送受信が可能とされる。また、前記カラオケ装置１０が設置される店舗等に複数台のカラオケ装置が備えられている場合において、同様に前記ＬＡＮ６４に接続されたカラオケ装置相互間において情報の送受信が可能とされる。例えば、前記ＬＡＮ６４に接続されたアクセスポイント６６を介して受信される電子早見本装置６８からの選曲入力を受け付けて前記ＲＡＭ１６に設けられた予約曲テーブルに記憶したり、そのアクセスポイント６６を介して前記カラオケ装置１０から電子早見本装置６８へ所定の情報を送信したりというように、電波を介して前記カラオケ装置１０と電子早見本装置６８との間における相互の情報のやりとりが実行される。   The LAN interface 38 is a connector for connecting the karaoke device 10 to a local area network (LAN) 64 via a LAN connection terminal 62, and thus connected to the LAN 64, the karaoke device 10 is also capable of transmitting / receiving information to / from other devices such as the electronic sample device 68 connected to the LAN 64. Further, when a plurality of karaoke apparatuses are provided in a store or the like where the karaoke apparatus 10 is installed, information can be transmitted and received between karaoke apparatuses connected to the LAN 64 in the same manner. For example, the music selection input from the electronic sample device 68 received via the access point 66 connected to the LAN 64 is received and stored in the reserved music table provided in the RAM 16, or via the access point 66. Mutual information exchange is performed between the karaoke device 10 and the electronic quick sample device 68 via radio waves, such as transmitting predetermined information from the karaoke device 10 to the electronic quick sample device 68.

前記無線通信部４０は、前記カラオケ装置１０と前記電子早見本装置６８等の入力装置との間の無線通信を行う。例えば、前記電子早見本装置６８等の入力装置から送信されるリモコン信号を受信するリモコン受信部として機能する。前記カラオケ装置１０と電子早見本装置６８との対応付け（くくりつけ）処理は、好適には、斯かるリモコン信号（赤外線信号）により前記無線通信部４０を介して行われる。すなわち、前記電子早見本装置６８は、それぞれ個別のシリアル番号を有しており、前記対応付け処理においては、例えばそのシリアル番号（例えば、下４桁）及び所定の接続コードを含む信号が接続通知として前記カラオケ装置１０へ送信され、前記無線通信部４０によりその接続信号を受信したカラオケ装置１０に対して前記電子早見本装置６８が対応付けられる。そのようにして前記カラオケ装置１０に対応付けられた電子早見本装置６８は、そのカラオケ装置１０の入力装置（遠隔操作装置）として機能し、その電子早見本装置６８から送信される信号が前記ＣＰＵ１２に供給されることで、前記カラオケ装置１０の利用者が歌いたい楽曲を選択したり、楽曲の演奏出力に係る音程を調整したり、演奏と歌との音量バランスを調整したり、その他、エコー、音量、トーン等の各種調整を行うための入力が受け付けられるようになっている。なお、前記対応付け処理が行われた後、前記電子早見本装置６８と前記カラオケ装置１０との間の通信は、前記ＬＡＮ６４及びアクセスポイント６６等を介したＬＡＮ通信により行われる。また、本実施例においては、前記カラオケ装置１０に対応付け処理の行われた電子早見本装置６８等の入力装置もそのカラオケ装置１０の一部を構成するものであるとして以下の説明を行う。   The wireless communication unit 40 performs wireless communication between the karaoke device 10 and an input device such as the electronic quick sample device 68. For example, it functions as a remote control receiving unit that receives a remote control signal transmitted from an input device such as the electronic quick sample device 68. The association (sticking) process between the karaoke apparatus 10 and the electronic quick sample apparatus 68 is preferably performed via the wireless communication unit 40 by such a remote control signal (infrared signal). That is, the electronic sample device 68 has an individual serial number, and in the association process, for example, a signal including the serial number (for example, the last four digits) and a predetermined connection code is notified of the connection. The electronic quick sample device 68 is associated with the karaoke device 10 that is transmitted to the karaoke device 10 and receives the connection signal by the wireless communication unit 40. The electronic quick sample device 68 thus associated with the karaoke device 10 functions as an input device (remote control device) of the karaoke device 10, and a signal transmitted from the electronic quick sample device 68 is the CPU 12. , The user of the karaoke apparatus 10 selects a song that the user wants to sing, adjusts the pitch related to the performance output of the song, adjusts the volume balance between the performance and the song, and so on. Input for making various adjustments such as volume, tone, etc. is accepted. After the association process is performed, communication between the electronic sample device 68 and the karaoke apparatus 10 is performed by LAN communication via the LAN 64, the access point 66, and the like. Further, in the present embodiment, the following description will be given on the assumption that the input device such as the electronic quick sample device 68 subjected to the association process with the karaoke device 10 also constitutes a part of the karaoke device 10.

前記ハードディスク１８には、カラオケ演奏曲を出力させるための多数の楽曲データ（カラオケ情報）を記憶する楽曲データベース７０及び利用者毎の音声の周波数特性を記憶する音声データベース７２（図２を参照）をはじめとする各種データベースが設けられている。前記楽曲データベース７０は、前記カラオケ装置１０により出力可能な楽曲にそれぞれ対応する多数（例えば、数万曲分）の楽曲データ（カラオケデータ）を記憶する。この楽曲データは、前記音声処理部２２（シンセサイザ）により所定の楽器の演奏音を生成するための演奏情報と、歌詞文字映像（歌詞テロップ）を生成するための歌詞情報と、その歌詞情報に基づいて生成された歌詞文字映像を演奏の進行に合わせて順次色替わりさせてゆくための歌詞色替情報とを、含むものであり、コンテンツＩＤである各楽曲に固有の選曲番号により識別される。また、前記楽曲データベース７０には、後述する出力周波数特性設定手段８２による出力周波数特性の設定に用いられる、ホワイトノイズやピンクノイズをデジタル符号化したデータが、前記楽曲データと同様に選曲番号を付されて記憶されている。   The hard disk 18 includes a music database 70 for storing a large number of music data (karaoke information) for outputting karaoke performance music and a voice database 72 (see FIG. 2) for storing frequency characteristics of voice for each user. Various databases such as the beginning are provided. The music database 70 stores a large number (for example, tens of thousands of songs) of music data (karaoke data) corresponding to the music that can be output by the karaoke apparatus 10. The music data is based on performance information for generating a performance sound of a predetermined instrument by the sound processing unit 22 (synthesizer), lyrics information for generating a lyric character image (lyric telop), and the lyrics information. The lyric character video generated in this manner is sequentially changed in color as the performance progresses, and is identified by a music selection number unique to each music piece as a content ID. In the music database 70, data obtained by digitally encoding white noise and pink noise used for setting output frequency characteristics by the output frequency characteristic setting means 82 to be described later is assigned a music selection number in the same manner as the music data. Has been remembered.

前記音声データベース７２は、前記カラオケ装置１０の利用者毎に、後述する音声周波数特性算出手段８０により算出された音声の周波数特性を、その利用者の識別情報であるユーザＩＤと対応付けて記憶する。この音声データベース７２に記憶される音声の周波数特性については、音声周波数特性算出手段８０の説明に併せて後述する。なお、本実施例においては、前記音声データベース７２が前記カラオケ装置１０のハードディスク１８に設けられた実施例について説明するが、この音声データベース７２は、必ずしも前記カラオケ装置１０のハードディスク１８に設けられたものでなくともよく、例えば、前記カラオケ装置１０と前記通信回線６０を介して接続されたサーバ装置に設けられたものであっても構わない。   The voice database 72 stores, for each user of the karaoke apparatus 10, a voice frequency characteristic calculated by a voice frequency characteristic calculation unit 80 described later in association with a user ID that is identification information of the user. . The frequency characteristics of the voice stored in the voice database 72 will be described later in conjunction with the description of the voice frequency characteristic calculation means 80. In this embodiment, an example in which the voice database 72 is provided on the hard disk 18 of the karaoke device 10 will be described. However, the voice database 72 is not necessarily provided on the hard disk 18 of the karaoke device 10. For example, it may be provided in a server device connected to the karaoke device 10 via the communication line 60.

図２は、前記カラオケ装置１０のＣＰＵ１２に備えられた制御機能の要部を説明する機能ブロック線図である。この図２に示す音声周波数特性算出手段８０は、音声入力装置である前記マイクロフォン４８から入力される歌唱者の音声（音声データ）に関して、よく知られた周波数解析アルゴリズムに従ってその音声の周波数解析を行うことで、その音声の周波数特性を算出する。具体的には、前記マイクロフォン４８から入力される歌唱者の音声に係る複数の周波数帯域（例えば、２０Ｈｚ〜２０ｋＨｚを均等に区分した４〜１００帯域程度の周波数帯域、以下の演奏出力に係る周波数特性等の説明において同じ）毎の音圧レベルを算出する。換言すれば、予め定められた複数の周波数帯域毎の、前記マイクロフォン４８から入力される歌唱者の音声（音圧）の強弱の相対関係としての周波数特性を算出する。前記音声周波数特性算出手段８０による音声の周波数解析において、前記マイクロフォン４８から入力される音声は、予め定められた楽曲（課題曲）の歌唱音声に対応するものであってもよいし、母音「あ」を長くのばす発声に対応する音声等の簡単なものであってもよい。この音声周波数特性算出手段８０により算出された周波数特性は、その音声に対応する歌唱者のユーザＩＤと対応付けられて前記音声データベース７２に記憶される。   FIG. 2 is a functional block diagram for explaining a main part of the control function provided in the CPU 12 of the karaoke apparatus 10. The voice frequency characteristic calculating means 80 shown in FIG. 2 performs frequency analysis of the voice of the singer's voice (voice data) input from the microphone 48 as a voice input device according to a well-known frequency analysis algorithm. Thus, the frequency characteristic of the sound is calculated. Specifically, a plurality of frequency bands related to the voice of the singer input from the microphone 48 (for example, a frequency band of about 4 to 100 bands obtained by equally dividing 20 Hz to 20 kHz, and frequency characteristics related to the performance output below. The same sound pressure level is calculated for each). In other words, the frequency characteristic is calculated as a relative relationship between the strengths of the voice (sound pressure) of the singer input from the microphone 48 for each of a plurality of predetermined frequency bands. In the sound frequency analysis by the sound frequency characteristic calculating means 80, the sound input from the microphone 48 may correspond to a singing sound of a predetermined music (task music) or the vowel “A” It may be a simple one such as a voice corresponding to a utterance that extends “ The frequency characteristic calculated by the voice frequency characteristic calculation means 80 is stored in the voice database 72 in association with the user ID of the singer corresponding to the voice.

出力周波数特性設定手段８２は、前記楽曲の演奏出力に係る周波数特性を設定する。具体的には、前記楽曲データベース７０に記憶された楽曲データ（ＭＩＤＩデータ）に基づいて前記音声処理部２２から出力される演奏音の出力に係る複数の周波数帯域毎のゲイン（レベル）を設定する。この複数の周波数帯域毎のゲインは、好適には、前記音声処理部２２に備えられたパラメトリックイコライザ及びグラフィックイコライザ等において設定される複数の周波数帯域毎の音圧レベル（音量）であるが、前記アンプ５２において楽曲の演奏音と歌唱音声とがそれぞれ異なる増幅率で増幅される構成においては、そのアンプ５２における楽曲の演奏音の増幅率に対応するものであってもよい。また、前記音声処理部２２及びアンプ５２とは別に、前記楽曲の演奏出力に係る周波数特性を変更するイコライザが設けられた構成では、そのイコライザにおいて設定されるものであってもよい。なお、前記出力周波数特性設定手段８２による設定対象となる周波数特性は、好適には、初期値（デフォルト値）においては複数の周波数帯域毎の調整を行わないものとされている。また、好適には、前記マイクロフォン４８から入力される音声に係る周波数帯域毎のゲインは調整せず、各周波数帯域毎に強弱をつけない。前記マイクロフォン４８から入力される音声に関して複数の周波数帯域毎のゲインを変更する制御を行うと、前記スピーカ５４から出力されるその音声が変に聞こえる（例えば、ヘリウムガスを吸った時のように自分の声ではないように聞こえる）おそれがあるからである。   The output frequency characteristic setting means 82 sets a frequency characteristic related to the performance output of the music. Specifically, a gain (level) for each of a plurality of frequency bands related to the output of the performance sound output from the audio processing unit 22 is set based on the music data (MIDI data) stored in the music database 70. . The gain for each of the plurality of frequency bands is preferably a sound pressure level (volume) for each of the plurality of frequency bands set in a parametric equalizer, a graphic equalizer, or the like provided in the sound processing unit 22, In the configuration in which the music performance sound and the singing voice are amplified with different amplification factors in the amplifier 52, the amplifier 52 may correspond to the amplification rate of the music performance sound in the amplifier 52. Moreover, in the structure provided with the equalizer which changes the frequency characteristic concerning the performance output of the said music apart from the said audio | voice processing part 22 and the amplifier 52, it may be set in the equalizer. The frequency characteristic to be set by the output frequency characteristic setting means 82 is preferably not adjusted for each of a plurality of frequency bands in the initial value (default value). Preferably, the gain for each frequency band related to the sound input from the microphone 48 is not adjusted, and the strength is not given for each frequency band. When control is performed to change the gain for each of a plurality of frequency bands with respect to the sound input from the microphone 48, the sound output from the speaker 54 sounds strange (for example, when he / she sucks helium gas) It sounds like it ’s not a voice).

前記出力周波数特性設定手段８２は、好適には、前記カラオケ装置１０が利用される環境においてそのカラオケ装置１０から出力された音情報を前記マイクロフォン４８により集音し、その音情報の複数の周波数帯域毎の音圧レベルが予め定められた推奨周波数特性と一致するように前記演奏出力に係る周波数特性を設定する。具体的には、前記カラオケ装置１０が利用される環境において、前記楽曲データベース７０に記憶されたピンクノイズ（単位周波数帯域に含まれる成分の強さが周波数に反比例する性質を持つ雑音）或いはホワイトノイズ（単位周波数帯域に含まれる成分の強さが周波数によらず一定である雑音）等を内容とするノイズ音を出力させ、前記マイクロフォン４８により集音されるそのノイズ音に対応する音情報を、よく知られた周波数解析アルゴリズムに従って周波数解析して複数の周波数帯域毎の音圧レベルを算出する。そして、図３に示すように、前記マイクロフォン４８により集音（入力）された音情報の周波数特性を示す曲線９０（図３では二点鎖線で示す）が、前記ハードディスク１８等に予め記憶された推奨周波数特性を示す曲線９２と一致するように前記楽曲の演奏出力に係る周波数特性を設定（変更）する。ここで、前記ノイズ音の集音に用いられるマイクロフォンとしては、前記カラオケ装置１０に備えられた歌唱用のマイクロフォン４８とは別のものが用いられてもよい。また、このマイクロフォンによる集音は、ユーザがカラオケ演奏に際して位置する場所で行われるのが好ましい。   The output frequency characteristic setting means 82 preferably collects sound information output from the karaoke device 10 in the environment where the karaoke device 10 is used, by the microphone 48, and a plurality of frequency bands of the sound information. The frequency characteristic related to the performance output is set so that the sound pressure level for each of the sound pressure levels matches a predetermined recommended frequency characteristic. Specifically, in an environment where the karaoke apparatus 10 is used, pink noise (noise having a property that the strength of the component included in the unit frequency band is inversely proportional to the frequency) or white noise stored in the music database 70 (Noise in which the intensity of the component included in the unit frequency band is constant regardless of the frequency) or the like is output, and sound information corresponding to the noise sound collected by the microphone 48, The sound pressure level is calculated for each of a plurality of frequency bands by performing frequency analysis according to a well-known frequency analysis algorithm. As shown in FIG. 3, a curve 90 (indicated by a two-dot chain line in FIG. 3) indicating the frequency characteristics of sound information collected (input) by the microphone 48 is stored in advance in the hard disk 18 or the like. The frequency characteristic related to the performance output of the music is set (changed) so as to coincide with the curve 92 indicating the recommended frequency characteristic. Here, as a microphone used for collecting the noise sound, a microphone different from the singing microphone 48 provided in the karaoke apparatus 10 may be used. Moreover, it is preferable that the sound collection by the microphone is performed at a place where the user is located when performing the karaoke performance.

図２に示す出力周波数特性補正手段８４は、前記出力周波数特性設定手段８２により設定された前記楽曲の演奏出力に係る周波数特性を、その楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段８０により算出されたその音声の周波数特性に基づいて補正する。好適には、前記カラオケ装置１０による楽曲の演奏出力に際して、その楽曲の歌唱者（演奏主体）である利用者に対応して前記音声データベース７２に記憶された音声の周波数特性を読み出し、その読み出された音声の周波数特性に基づいて前記演奏出力に係る周波数特性を補正する。   The output frequency characteristic correcting unit 84 shown in FIG. 2 calculates the frequency characteristic relating to the performance output of the music set by the output frequency characteristic setting unit 82 in correspondence with the voice of the singer of the music. Correction is performed based on the frequency characteristic of the sound calculated by the means 80. Preferably, when the karaoke device 10 outputs a musical performance, the frequency characteristic of the voice stored in the voice database 72 corresponding to the user who is the singer (performer) of the musical piece is read out and read out. The frequency characteristic related to the performance output is corrected based on the frequency characteristic of the sound that has been played.

前記出力周波数特性補正手段８４は、好適には、前記出力周波数特性設定手段８２により設定された演奏出力に係るゲインが相対的に大きい周波数帯域が、その楽曲の歌唱者の音声の音圧レベルが相対的に大きい周波数帯域に相当する場合には、その周波数帯域における演奏出力のゲインを低下させる補正を行う。換言すれば、前記出力周波数特性設定手段８２により設定された周波数特性と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性とで、相対的に大きい周波数帯域が重なる場合には、その周波数帯域における演奏出力のゲインを低下させる補正を行う。好適には、その周波数帯域を中心とする所定の周波数帯域（例えば、中心となる周波数帯域±規定の周波数帯域）における演奏出力のゲインを低下させる補正を行う。例えば、前記出力周波数特性設定手段８２により設定された周波数特性における極大値（ゲインが極大をとる周波数帯域）と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性における極大値（音圧レベルが極大をとる周波数帯域）とが、予め定められた複数の周波数帯域のうち同一の周波数帯域に含まれる場合、或いは各極大値相互間の周波数が予め定められた閾値未満である場合に、その周波数帯域における演奏出力のゲインを低下させる補正を行う。   The output frequency characteristic correcting means 84 preferably has a frequency band in which the gain related to the performance output set by the output frequency characteristic setting means 82 is relatively large, and the sound pressure level of the singer of the music is When it corresponds to a relatively large frequency band, correction is performed to reduce the gain of the performance output in that frequency band. In other words, if a relatively large frequency band overlaps with the frequency characteristic set by the output frequency characteristic setting means 82 and the frequency characteristic of the singer's voice input from the microphone 48, the frequency Perform correction to lower the gain of performance output in the band. Preferably, correction is performed to reduce the gain of the performance output in a predetermined frequency band centered on the frequency band (for example, frequency band at the center ± specified frequency band). For example, the maximum value in the frequency characteristic set by the output frequency characteristic setting means 82 (frequency band in which the gain is maximum) and the maximum value in the frequency characteristic of the voice of the singer input from the microphone 48 (sound pressure level) Is included in the same frequency band among a plurality of predetermined frequency bands, or when the frequency between the local maximum values is less than a predetermined threshold, Correction is performed to reduce the performance output gain in the frequency band.

図４は、前記音声周波数特性算出手段８０により算出された音声の周波数特性の一例を示す曲線９６（図４では一点鎖線で示す）と、前記出力周波数特性設定手段８２により設定された演奏出力の周波数特性の一例を示す曲線９８とを併せて示す図である。図４の曲線９４で表されるような出力周波数特性が設定されている場合に、前記マイクロフォン４８から図４の曲線９６で表されるような周波数特性の音声が入力された場合、図４に示すように、周波数帯ｆｂ1において相対的に大きい周波数帯域が重なるため、その周波数帯ｆｂ1の音が耳に障る等して逆に聞きづらくなってしまうおそれがある。そこで、前記出力周波数特性補正手段８４により、斯かる周波数帯ｆｂ1における演奏出力のゲインを、図４に破線で示すように低下させる補正を行うことにより、上記のような問題が発生することを好適に抑制でき、聞き心地のよい音場設定を行うことができるのである。 4 shows a curve 96 (shown by a one-dot chain line in FIG. 4) showing an example of the frequency characteristic of the sound calculated by the sound frequency characteristic calculating means 80, and the performance output set by the output frequency characteristic setting means 82. It is a figure which shows collectively the curve 98 which shows an example of a frequency characteristic. When the output frequency characteristic represented by the curve 94 in FIG. 4 is set and the sound having the frequency characteristic represented by the curve 96 in FIG. 4 is input from the microphone 48, FIG. as shown, since the relatively large frequency band overlap in the frequency band fb 1, the sound of the frequency band fb 1 is likely to become difficult to hear the opposite and like gets on the ear. Therefore, it is possible to cause the above-described problem by correcting the output frequency characteristic correcting means 84 to reduce the gain of the performance output in the frequency band fb 1 as shown by a broken line in FIG. Sound field setting that can be suitably suppressed and is comfortable to listen to can be performed.

また、前記出力周波数特性補正手段８４は、好適には、前記出力周波数特性設定手段８２により設定された演奏出力に係るゲインが相対的に小さい周波数帯域が、その楽曲の歌唱者の音声の音圧レベルが相対的に小さい周波数帯域に相当する場合には、その周波数帯域における演奏出力のゲインを増加させる補正を行う。換言すれば、前記出力周波数特性設定手段８２により設定された周波数特性と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性とで、相対的に小さい周波数帯域が重なる場合には、その周波数帯域における演奏出力のゲインを増加させる補正を行う。好適には、その周波数帯域を中心とする所定の周波数帯域（例えば、中心となる周波数帯域±規定の周波数帯域）における演奏出力のゲインを増加させる補正を行う。例えば、前記出力周波数特性設定手段８２により設定された周波数特性における極小値（ゲインが極小をとる周波数帯域）と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性における極小値（音圧レベルが極小をとる周波数帯域）とが、予め定められた複数の周波数帯域のうち同一の周波数帯域に含まれる場合、或いは各極小値相互間の周波数が予め定められた閾値未満である場合に、その周波数帯域における演奏出力のゲインを増加させる補正を行う。   Further, the output frequency characteristic correcting means 84 preferably has a frequency band in which the gain relating to the performance output set by the output frequency characteristic setting means 82 is relatively small, and the sound pressure of the voice of the singer of the song. If the level corresponds to a relatively small frequency band, correction is performed to increase the gain of the performance output in that frequency band. In other words, if a relatively small frequency band overlaps between the frequency characteristic set by the output frequency characteristic setting means 82 and the frequency characteristic of the singer's voice input from the microphone 48, the frequency Perform correction to increase the gain of performance output in the band. Preferably, correction is performed to increase the gain of the performance output in a predetermined frequency band centered on the frequency band (for example, frequency band at the center ± specified frequency band). For example, the minimum value (frequency band in which the gain is minimized) in the frequency characteristic set by the output frequency characteristic setting means 82 and the minimum value (sound pressure level) in the frequency characteristic of the singer's voice input from the microphone 48 Is a frequency band in which the minimum value is included in the same frequency band among a plurality of predetermined frequency bands, or when the frequency between each minimum value is less than a predetermined threshold, Perform correction to increase the gain of performance output in the frequency band.

図５は、前記出力周波数特性設定手段８２により設定された演奏出力の周波数特性の一例を示す曲線９８と、前述した図４の音声の周波数特性を示す曲線９６とを併せて示す図である。この図５の曲線９８で表されるような出力周波数特性が設定されている場合に、前記マイクロフォン４８から図４の曲線９６で表されるような周波数特性の音声が入力された場合、図５に示すように、周波数帯ｆｂ2において相対的に小さい周波数帯域が重なるため、その周波数帯ｆｂ2の音が聞きづらくなってしまうおそれがある。そこで、前記出力周波数特性補正手段８４により、斯かる周波数帯ｆｂ2における演奏出力のゲインを、図５に破線で示すように増加させる補正を行うことにより、上記のような問題が発生することを好適に抑制でき、聞き心地のよい音場設定を行うことができるのである。 FIG. 5 is a diagram showing a curve 98 showing an example of the frequency characteristic of the performance output set by the output frequency characteristic setting means 82 and the curve 96 showing the frequency characteristic of the sound shown in FIG. When the output frequency characteristic represented by the curve 98 in FIG. 5 is set and the sound having the frequency characteristic represented by the curve 96 in FIG. 4 is input from the microphone 48, FIG. As shown in FIG. 2 , since relatively small frequency bands overlap in the frequency band fb 2 , it may be difficult to hear the sound in the frequency band fb 2 . Therefore, the output frequency characteristic correcting means 84 performs the correction to increase the gain of the performance output in the frequency band fb 2 as shown by the broken line in FIG. Sound field setting that can be suitably suppressed and is comfortable to listen to can be performed.

また、前記出力周波数特性補正手段８４は、好適には、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性において極大となる周波数帯域における演奏出力に係るゲインを低下させる補正を行う。例えば、歌唱者が所謂ハスキーボイスである場合、前記マイクロフォン４８から入力される歌唱者の音声において、例えば３〜５ｋＨｚの周波数帯が抜けており、その周波数帯における声が特に聞こえづらくなっている。従って、その周波数帯域における演奏出力のゲインを低下させる補正を行うことで、聞き心地のよい音場設定を行うことができる。   Further, the output frequency characteristic correcting means 84 preferably performs correction to reduce the gain related to the performance output in the frequency band that is maximum in the frequency characteristic of the voice of the singer input from the microphone 48. For example, when the singer is a so-called husky voice, the singer's voice input from the microphone 48 has a frequency band of 3 to 5 kHz, for example, and the voice in that frequency band is particularly difficult to hear. Therefore, it is possible to set a sound field that is comfortable to hear by performing a correction that reduces the gain of the performance output in the frequency band.

図２に示す楽曲周波数特性算出手段８６は、前記楽曲の演奏出力の進行に応じて経時的に変化する複数の周波数帯域毎の音圧レベルを算出する。具体的には、前記楽曲に対応する楽曲データ（ＭＩＤＩデータ）における演奏開始から演奏終了までの所定時間毎（例えば、拍に対応するタイミング毎）の、その楽曲データに基づいて再生される演奏音に係る複数の周波数帯域毎の音圧レベルを算出する。図６は、前記楽曲周波数特性算出手段８６により算出された、前記楽曲の演奏出力の進行に応じた各時点におけるその楽曲の周波数特性を表す曲線１００の推移の一例を示す図である。前記楽曲データに基づく楽曲の演奏出力においては、出力に係る楽器の種類や各楽器の演奏音の音階が時々刻々と変化するため、その楽曲の演奏音に係る各周波数帯域毎の音圧レベルも演奏出力の進行に応じて経時的に変化してゆく。一方、その楽曲における各時点の周波数特性はそれぞれ所定の特性に定まる。すなわち、所定の楽曲に関して、図６に示すように、曲線１００ａで表される演奏出力時点ｔ１の演奏音に係る周波数特性（各周波数帯域毎の音圧レベル）、曲線１００ｂで表される演奏出力時点ｔ２の演奏音に係る周波数特性、曲線１００ｃで表される演奏出力時点ｔ３の演奏音に係る周波数特性、・・・というように、各時点における演奏音の周波数特性がそれぞれ定まる。前記楽曲周波数特性算出手段８６は、このように、前記楽曲の演奏出力の進行に応じて経時的に変化する各時点毎の演奏音に係る各周波数帯域毎の音圧レベルとしての周波数特性を算出する。また、この楽曲周波数特性算出手段８６により算出される各楽曲の演奏出力の進行に応じて経時的に変化する複数の周波数帯域毎の音圧レベルを前記ハードディスク１８等に設けられたデータベースに予め記憶させておいてもよい。   The music frequency characteristic calculation means 86 shown in FIG. 2 calculates the sound pressure level for each of a plurality of frequency bands that change over time according to the progress of the performance output of the music. Specifically, the performance sound reproduced based on the music data at a predetermined time (for example, every timing corresponding to the beat) from the performance start to the performance end in the music data (MIDI data) corresponding to the music. The sound pressure level for each of a plurality of frequency bands is calculated. FIG. 6 is a diagram showing an example of the transition of the curve 100 representing the frequency characteristic of the music at each time point according to the progress of the performance output of the music calculated by the music frequency characteristic calculating means 86. In the performance output of the music based on the music data, the type of musical instrument to be output and the scale of the performance sound of each musical instrument change every moment, so the sound pressure level for each frequency band related to the performance sound of the music is also It will change over time as the performance output progresses. On the other hand, the frequency characteristic at each time point in the music is determined to be a predetermined characteristic. That is, as shown in FIG. 6, the frequency characteristics (sound pressure level for each frequency band) related to the performance sound at the performance output time t1 represented by the curve 100a and the performance output represented by the curve 100b for a predetermined music piece. The frequency characteristic of the performance sound at each time point is determined such as the frequency characteristic related to the performance sound at the time point t2, the frequency characteristic related to the performance sound at the performance output time point t3 represented by the curve 100c, and so on. The music frequency characteristic calculating means 86 calculates the frequency characteristic as the sound pressure level for each frequency band related to the performance sound at each time point that changes with time according to the progress of the performance output of the music. To do. In addition, the sound pressure level for each of a plurality of frequency bands that change with time according to the progress of the performance output of each music calculated by the music frequency characteristic calculating means 86 is stored in advance in a database provided in the hard disk 18 or the like. You may leave it.

前記出力周波数特性補正手段８４は、前記出力周波数特性設定手段８２により設定された前記楽曲の演奏出力に係る周波数特性を、その楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段８０により算出されたその音声の周波数特性及びその楽曲に対応して前記楽曲周波数特性算出手段８６により算出された周波数特性に基づいて補正する。換言すれば、前記楽曲の演奏出力の進行に応じて経時的に変化する各時点毎の周波数特性と、前記マイクロフォン４８から入力される音声の周波数特性とに基づいて、前記出力周波数特性設定手段８２により設定された演奏出力に係る周波数特性を補正する。斯かる制御では、前記カラオケ装置１０による楽曲の演奏出力制御と併行して、前記楽曲周波数特性算出手段８６により算出された周波数特性に基づく出力周波数特性の補正がリアルタイムで実行される。また、前記出力周波数特性補正手段８４は、好適には、予め前記楽曲周波数特性算出手段８６により算出されて前記データベースに記憶された各楽曲毎の演奏出力の進行に応じて経時的に変化する複数の周波数帯域毎の音圧レベルを読み出し、その読み出された情報に基づいて前記周波数特性の補正を行う。   The output frequency characteristic correcting unit 84 uses the audio frequency characteristic calculating unit 80 to calculate the frequency characteristic related to the performance output of the music set by the output frequency characteristic setting unit 82 in correspondence with the voice of the singer of the music. Correction is made based on the calculated frequency characteristic of the sound and the frequency characteristic calculated by the music frequency characteristic calculating means 86 corresponding to the music. In other words, the output frequency characteristic setting means 82 is based on the frequency characteristic for each time point that changes with time according to the progress of the performance output of the music and the frequency characteristic of the sound input from the microphone 48. The frequency characteristic related to the performance output set by is corrected. In such control, correction of the output frequency characteristic based on the frequency characteristic calculated by the music frequency characteristic calculating means 86 is executed in real time in parallel with the music performance output control by the karaoke apparatus 10. The output frequency characteristic correction means 84 preferably has a plurality of time-dependent changes according to the progress of performance output for each piece of music that is calculated in advance by the music frequency characteristic calculation means 86 and stored in the database. The sound pressure level for each frequency band is read, and the frequency characteristic is corrected based on the read information.

前記出力周波数特性補正手段８４は、好適には、前記楽曲に対応して前記楽曲周波数特性算出手段８６により算出された周波数特性と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性とで、相対的に大きい周波数帯域が重なる場合には、その周波数帯域における演奏出力のゲインを低下させる補正を行う。好適には、その周波数帯域を中心とする所定の周波数帯域（例えば、中心となる周波数帯域±規定の周波数帯域）における演奏出力のゲインを低下させる補正を行う。例えば、前記楽曲周波数特性算出手段８６により算出された所定時点の演奏音に係る周波数特性における極大値（音圧レベルが極大をとる周波数帯域）と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性における極大値（音圧レベルが極大をとる周波数帯域）とが、予め定められた複数の周波数帯域のうち同一の周波数帯域に含まれる場合、或いは各極大値相互間の周波数が予め定められた閾値未満である場合に、その時点における、その周波数帯域における演奏出力のゲインを低下させる補正を行う。   The output frequency characteristic correcting unit 84 preferably includes a frequency characteristic calculated by the music frequency characteristic calculating unit 86 corresponding to the music and a frequency characteristic of the voice of the singer input from the microphone 48. If relatively large frequency bands overlap, correction is performed to reduce the gain of the performance output in that frequency band. Preferably, correction is performed to reduce the gain of the performance output in a predetermined frequency band centered on the frequency band (for example, frequency band at the center ± specified frequency band). For example, the maximum value (frequency band in which the sound pressure level takes a maximum value) in the frequency characteristics related to the performance sound at a predetermined time calculated by the music frequency characteristic calculation means 86 and the voice of the singer input from the microphone 48. When the maximum value in the frequency characteristics (frequency band in which the sound pressure level has a maximum) is included in the same frequency band among a plurality of predetermined frequency bands, or the frequency between the maximum values is determined in advance. If it is less than the threshold value, correction is performed to reduce the gain of the performance output in that frequency band at that time.

また、前記出力周波数特性補正手段８４は、好適には、前記楽曲に対応して前記楽曲周波数特性算出手段８６により算出された周波数特性と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性とで、相対的に小さい周波数帯域が重なる場合には、その周波数帯域における演奏出力のゲインを増加させる補正を行う。好適には、その周波数帯域を中心とする所定の周波数帯域（例えば、中心となる周波数帯域±規定の周波数帯域）における演奏出力のゲインを増加させる補正を行う。例えば、前記楽曲周波数特性算出手段８６により算出された所定時点の演奏音に係る周波数特性における極小値（音圧レベルが極小をとる周波数帯域）と、前記マイクロフォン４８から入力される歌唱者の音声の周波数特性における極小値（音圧レベルが極小をとる周波数帯域）とが、予め定められた複数の周波数帯域のうち同一の周波数帯域に含まれる場合、或いは各極小値相互間の周波数が予め定められた閾値未満である場合に、その時点における、その周波数帯域における演奏出力のゲインを増加させる補正を行う。   The output frequency characteristic correcting means 84 preferably has a frequency characteristic calculated by the music frequency characteristic calculating means 86 corresponding to the music and a frequency characteristic of the voice of the singer input from the microphone 48. When a relatively small frequency band overlaps, correction for increasing the gain of the performance output in that frequency band is performed. Preferably, correction is performed to increase the gain of the performance output in a predetermined frequency band centered on the frequency band (for example, frequency band at the center ± specified frequency band). For example, a minimum value (frequency band in which the sound pressure level takes a minimum value) in the frequency characteristic related to the performance sound at a predetermined time calculated by the music frequency characteristic calculation unit 86 and the voice of the singer input from the microphone 48 are used. When the minimum value (frequency band in which the sound pressure level takes a minimum) in the frequency characteristics is included in the same frequency band among a plurality of predetermined frequency bands, or the frequency between each minimum value is determined in advance. If it is less than the threshold value, correction is performed to increase the gain of the performance output in that frequency band at that time.

図７は、前記カラオケ装置１０のＣＰＵ１２による出力周波数特性設定制御の一例の要部を説明するフローチャートであり、所定の周期で繰り返し実行されるものである。   FIG. 7 is a flowchart for explaining a main part of an example of the output frequency characteristic setting control by the CPU 12 of the karaoke apparatus 10, and is repeatedly executed at a predetermined cycle.

先ず、ステップ（以下、ステップを省略する）ＳＡ１において、前記カラオケ装置１０における出力周波数特性の設定が行われるか否かが判断される。このＳＡ１の判断が否定される場合には、それをもって本ルーチンが終了させられるが、ＳＡ１の判断が肯定される場合には、ＳＡ２において、前記楽曲データベース７０に記憶された出力周波数特性設定用のノイズ音（ホワイトノイズやピンクノイズをデジタル符号化したデータ）が読み出され、そのノイズ音の演奏出力が開始される。次に、ＳＡ３において、前記マイクロフォン４８により集音されたそのノイズ音に対応する音情報が、よく知られた周波数解析アルゴリズムに従って周波数解析され、その音情報に係る複数の周波数帯域毎の音圧レベルが算出される。次に、ＳＡ４において、ＳＡ３にて算出される音情報の周波数特性が、前記ハードディスク１８等に予め記憶された推奨周波数特性と一致するように前記楽曲の演奏出力に係る周波数特性が設定された後、本ルーチンが終了させられる。   First, in step (hereinafter, step is omitted) SA1, it is determined whether or not the output frequency characteristic is set in the karaoke apparatus 10. If the determination at SA1 is negative, the routine is terminated. If the determination at SA1 is affirmative, the routine for setting output frequency characteristics stored in the music database 70 is performed at SA2. A noise sound (data obtained by digitally encoding white noise or pink noise) is read out, and performance output of the noise sound is started. Next, in SA3, the sound information corresponding to the noise sound collected by the microphone 48 is subjected to frequency analysis according to a well-known frequency analysis algorithm, and the sound pressure level for each of a plurality of frequency bands related to the sound information. Is calculated. Next, in SA4, after the frequency characteristics related to the performance output of the music are set so that the frequency characteristics of the sound information calculated in SA3 match the recommended frequency characteristics stored in advance in the hard disk 18 or the like. This routine is terminated.

図８は、前記カラオケ装置１０のＣＰＵ１２による音声周波数特性算出制御の一例の要部を説明するフローチャートであり、所定の周期で繰り返し実行されるものである。   FIG. 8 is a flowchart for explaining a main part of an example of the sound frequency characteristic calculation control by the CPU 12 of the karaoke apparatus 10 and is repeatedly executed at a predetermined cycle.

先ず、ＳＢ１において、前記マイクロフォン４８から入力される音声の周波数特性の算出（登録）が行われるか否かが判断される。このＳＢ１の判断が否定される場合には、それをもって本ルーチンが終了させられるが、ＳＢ１の判断が肯定される場合には、ＳＢ２において、前記マイクロフォン４８から入力される音声がよく知られた周波数解析アルゴリズムに従って周波数解析され、その音声に係る複数の周波数帯域毎の音圧レベルが算出される。次に、ＳＢ３において、ＳＢ２にて算出された音声の周波数特性が、利用者（マイクロフォン４８による音声の入力主体）のユーザＩＤと対応付けられて前記音声データベース７２に記憶された後、本ルーチンが終了させられる。   First, in SB1, it is determined whether or not calculation (registration) of frequency characteristics of the sound input from the microphone 48 is performed. If the determination at SB1 is negative, the routine is terminated accordingly. If the determination at SB1 is affirmative, the frequency at which the sound input from the microphone 48 at SB2 is well known. Frequency analysis is performed according to the analysis algorithm, and sound pressure levels for a plurality of frequency bands related to the sound are calculated. Next, in SB3, after the frequency characteristic of the voice calculated in SB2 is stored in the voice database 72 in association with the user ID of the user (the voice input subject by the microphone 48), this routine is executed. Be terminated.

図９は、前記カラオケ装置１０のＣＰＵ１２による出力周波数特性補正制御の一例の要部を説明するフローチャートであり、所定の周期で繰り返し実行されるものである。   FIG. 9 is a flowchart for explaining a main part of an example of the output frequency characteristic correction control by the CPU 12 of the karaoke apparatus 10 and is repeatedly executed at a predetermined cycle.

先ず、ＳＣ１において、前記カラオケ装置１０による所定の楽曲のカラオケ演奏が開始されるか否かが判断される。このＳＣ１の判断が否定される場合には、それをもって本ルーチンが終了させられるが、ＳＣ１の判断が肯定される場合には、ＳＣ２において、演奏開始に係る楽曲の歌唱者（予約曲テーブルにおいてその楽曲に対応付けられて記憶されたユーザＩＤに対応する利用者）に対応して前記音声データベース７２に記憶された音声の周波数特性が読み出され、前記ＲＡＭ１６等に展開される。次に、ＳＣ３において、演奏開始に係る楽曲の演奏出力の進行に応じて経時的に変化する各時点毎の周波数特性が算出される。次に、ＳＣ４において、前記カラオケ装置１０において設定された楽曲の演奏出力に係る周波数特性が、ＳＣ２にて読み出された歌唱者の音声の周波数特性及びＳＣ３にて算出された前記楽曲の各時点毎の周波数特性に基づいて補正された後、本ルーチンが終了させられる。   First, in SC1, it is determined whether or not the karaoke performance of the predetermined music by the karaoke apparatus 10 is started. If the determination of SC1 is negative, this routine is terminated. If the determination of SC1 is affirmative, in SC2, the singer of the music for starting the performance (in the reserved music table, the The frequency characteristic of the voice stored in the voice database 72 corresponding to the user corresponding to the user ID stored in association with the music is read out and expanded in the RAM 16 or the like. Next, in SC3, a frequency characteristic for each time point that changes with time according to the progress of the performance output of the music related to the start of performance is calculated. Next, in SC4, the frequency characteristics relating to the performance output of the music set in the karaoke apparatus 10 are the frequency characteristics of the singer's voice read in SC2 and each time point of the music calculated in SC3. After correction based on each frequency characteristic, this routine is terminated.

以上の制御において、ＳＢ１〜ＳＢ３が前記音声周波数特性算出手段８０の動作に、ＳＡ１〜ＳＡ４が前記出力周波数特性設定手段８２の動作に、ＳＣ４が前記出力周波数特性補正手段８４の動作に、ＳＣ３が前記楽曲周波数特性算出手段８６の動作に、それぞれ対応する。   In the above control, SB1 to SB3 are the operations of the audio frequency characteristic calculation means 80, SA1 to SA4 are the operations of the output frequency characteristic setting means 82, SC4 is the operations of the output frequency characteristic correction means 84, and SC3 is The operation corresponds to the operation of the music frequency characteristic calculating means 86.

このように、本実施例によれば、前記楽曲の演奏出力に係る周波数特性として、その演奏出力に係る複数の周波数帯域毎のゲインを設定する出力周波数特性設定手段８２（ＳＡ１〜ＳＡ４）と、音声入力装置である前記マイクロフォン４８から入力される歌唱者の音声の周波数解析を行うことで、その音声の周波数特性として、その音声の複数の周波数帯域毎の音圧レベルを算出する音声周波数特性算出手段８０（ＳＢ１〜ＳＢ３）と、前記出力周波数特性設定手段８２により設定された前記楽曲の演奏出力に係る周波数特性を、その楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段８０により算出されたその音声の周波数特性に基づいて補正する出力周波数特性補正手段８４（ＳＣ４）とを、備えたものであることから、前記楽曲の演奏出力に際して、前記マイクロフォン４８から入力される歌唱者の音声を加味してその楽曲の演奏出力に係る周波数特性を設定することができる。すなわち、使用条件に適した音場を簡便に設定するカラオケ装置１０を提供することができる。   Thus, according to the present embodiment, the output frequency characteristic setting means 82 (SA1 to SA4) for setting gains for a plurality of frequency bands related to the performance output as the frequency characteristics related to the performance output of the music, A voice frequency characteristic calculation for calculating a sound pressure level for each of a plurality of frequency bands of the voice as a frequency characteristic of the voice by performing a frequency analysis of the voice of the singer input from the microphone 48 which is a voice input device. The frequency characteristics relating to the performance output of the music set by the means 80 (SB1 to SB3) and the output frequency characteristic setting means 82 are calculated by the audio frequency characteristic calculation means 80 corresponding to the voice of the singer of the music. Since the output frequency characteristic correcting means 84 (SC4) for correcting based on the calculated frequency characteristic of the sound is provided, Upon playing output, it is possible to set the frequency characteristic according to the playing output of the tune by adding the voice of singer inputted from the microphone 48. That is, it is possible to provide the karaoke apparatus 10 that can easily set a sound field suitable for use conditions.

また、前記音声周波数特性算出手段８０により算出された音声の周波数特性を、その音声に対応する歌唱者と対応付けて前記音声データベース７２に記憶させるものであり、前記出力周波数特性補正手段８４は、前記楽曲の演奏出力に際して、前記出力周波数特性設定手段８２により設定された周波数特性を、その楽曲の歌唱者に対応して前記音声データベース７２に記憶されたその歌唱者の音声の周波数特性に基づいて補正するものであるため、前記楽曲の演奏出力に際して、その楽曲の歌唱者の音声の周波数特性を前記音声データベース７２から読み出して使用することで、好適且つ実用的な態様で前記楽曲の演奏出力に係る周波数特性を設定することができる。   The voice frequency characteristic calculated by the voice frequency characteristic calculation unit 80 is stored in the voice database 72 in association with a singer corresponding to the voice, and the output frequency characteristic correction unit 84 includes: When the musical performance is output, the frequency characteristic set by the output frequency characteristic setting unit 82 is based on the frequency characteristic of the singer's voice stored in the voice database 72 corresponding to the singer of the musical piece. Therefore, when the music performance is output, the frequency characteristic of the voice of the singer of the music is read from the voice database 72 and used, so that the performance output of the music can be performed in a suitable and practical manner. Such frequency characteristics can be set.

また、前記出力周波数特性補正手段８４は、前記出力周波数特性設定手段８２により設定された演奏出力に係るゲインが相対的に大きい周波数帯域が、その楽曲の歌唱者の音声の音圧レベルが相対的に大きい周波数帯域に相当する場合には、その周波数帯域における演奏出力のゲインを低下させる補正を行うものであるため、楽曲の演奏出力に係る周波数特性と、歌唱者の音声の周波数特性とで、相対的に大きい周波数帯域が重なることで、その周波数帯域の音が耳に障る等して逆に聞きづらくなることを好適に抑制することができる。   Further, the output frequency characteristic correcting means 84 has a frequency band in which the gain related to the performance output set by the output frequency characteristic setting means 82 is relatively large, and the sound pressure level of the voice of the song singer is relatively high. If it corresponds to a large frequency band, because it is a correction to reduce the gain of the performance output in that frequency band, with the frequency characteristics related to the performance output of the music, and the frequency characteristics of the voice of the singer, By overlapping relatively large frequency bands, it is possible to preferably suppress the sound in the frequency band from becoming difficult to hear due to obstruction of the ear.

また、前記出力周波数特性補正手段８４は、前記出力周波数特性設定手段８２により設定された演奏出力に係るゲインが相対的に小さい周波数帯域が、その楽曲の歌唱者の音声の音圧レベルが相対的に小さい周波数帯域に相当する場合には、その周波数帯域における演奏出力のゲインを増加させる補正を行うものであるため、楽曲の演奏出力に係る周波数特性と、歌唱者の音声の周波数特性とで、相対的に小さい周波数帯域が重なることで、その周波数帯域の音が小さすぎて聞きづらくなることを好適に抑制することができる。   Further, the output frequency characteristic correcting means 84 has a frequency band in which the gain relating to the performance output set by the output frequency characteristic setting means 82 is relatively small, and the sound pressure level of the voice of the song singer is relatively low. Is equivalent to a small frequency band, the correction is to increase the gain of the performance output in that frequency band, so the frequency characteristics related to the performance output of the music and the frequency characteristics of the voice of the singer, By overlapping relatively small frequency bands, it is possible to suitably suppress the sound in that frequency band being too small to be difficult to hear.

また、前記出力周波数特性設定手段８２は、前記カラオケ装置１０が利用される環境においてそのカラオケ装置１０から出力された音情報を前記マイクロフォン４８により集音し、その音情報の複数の周波数帯域毎の音圧レベルが予め定められた推奨周波数特性と一致するように前記演奏出力に係る周波数特性を設定するものであるため、前記カラオケ装置１０が利用される環境に合わせて自動設定された前記楽曲の演奏出力に係る周波数特性を、歌唱者の音声の周波数特性に基づいて補正することができる。   The output frequency characteristic setting means 82 collects sound information output from the karaoke device 10 in the environment where the karaoke device 10 is used, and collects the sound information for each of a plurality of frequency bands of the sound information. Since the frequency characteristic related to the performance output is set so that the sound pressure level matches a predetermined recommended frequency characteristic, the music piece automatically set according to the environment in which the karaoke apparatus 10 is used is set. The frequency characteristic related to the performance output can be corrected based on the frequency characteristic of the voice of the singer.

また、前記楽曲の演奏出力の進行に応じて経時的に変化する複数の周波数帯域毎の音圧レベルを算出する楽曲周波数特性算出手段８６（ＳＣ３）を備え、前記出力周波数特性補正手段８４は、前記出力周波数特性設定手段８２により設定された前記楽曲の演奏出力に係る周波数特性を、その楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段８０により算出されたその音声の周波数特性及びその楽曲に対応して前記楽曲周波数特性算出手段８６により算出された周波数特性に基づいて補正するものであるため、楽曲の経時的な周波数特性の変化を加味することで、前記楽曲の演奏出力に係る周波数特性を更にきめ細かく設定することができる。   Further, the apparatus includes music frequency characteristic calculating means 86 (SC3) for calculating sound pressure levels for a plurality of frequency bands that change over time according to the progress of performance output of the music, and the output frequency characteristic correcting means 84 includes: The frequency characteristic related to the performance output of the music set by the output frequency characteristic setting means 82 is the frequency characteristic of the sound calculated by the sound frequency characteristic calculating means 80 corresponding to the voice of the singer of the music, and Since the correction is made on the basis of the frequency characteristic calculated by the music frequency characteristic calculation means 86 corresponding to the music, the change in the frequency characteristics of the music with time is taken into account, so that the performance output of the music is increased. Such frequency characteristics can be set more finely.

以上、本発明の好適な実施例を図面に基づいて詳細に説明したが、本発明はこれに限定されるものではなく、更に別の態様においても実施される。   The preferred embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to these embodiments, and may be implemented in other modes.

例えば、前述の実施例において、前記出力周波数特性補正手段８４は、例えば、前記楽曲データベース７０に記憶された楽曲データ（ＭＩＤＩデータ）に基づいて前記音声処理部２２から出力される演奏音を一括して、その演奏音の出力に係る複数の周波数帯域毎のゲインを補正するものであったが、本発明はこれに限定されるものではなく、前記ＭＩＤＩデータにおける各楽器に対応するトラック乃至チャンネル毎の出力特性を補正するものであってもよい。例えば、所定のトラック乃至チャンネルに対応する周波数特性において相対的に大きい周波数帯域が、その楽曲の歌唱者の音声の音圧レベルが相対的に大きい周波数帯域に相当する場合には、そのトラック乃至チャンネルのゲインを低下させる補正を行う等の態様が考えられる。   For example, in the above-described embodiment, the output frequency characteristic correcting unit 84 collects performance sounds output from the sound processing unit 22 based on, for example, music data (MIDI data) stored in the music database 70. Thus, the gain for each of a plurality of frequency bands related to the output of the performance sound is corrected. However, the present invention is not limited to this, and each track or channel corresponding to each instrument in the MIDI data. The output characteristics may be corrected. For example, when a relatively large frequency band in the frequency characteristics corresponding to a predetermined track or channel corresponds to a frequency band in which the sound pressure level of the singer's voice is relatively large, the track or channel It is conceivable to perform a correction for reducing the gain.

また、前述の実施例では、前記出力周波数特性設定手段８２による出力周波数特性の設定に関して、前記楽曲データベース７０に記憶された出力周波数特性設定用のノイズ音を出力させ、そのノイズ音を前記マイクロフォン４８により集音して解析することでその周波数特性が前記推奨周波数特性と一致するように設定を行う例を説明したが、前記ノイズ音を出力させて前記マイクロフォン４８による集音を実行することなく、予め定められた内部的な処理が実行されることでその出力特性が設定されるものであってもよい。このようにすれば、出力周波数特性の設定を実行する度に前記ノイズ音を出力させずに済み、ユーザがカラオケ演奏を行っている場合であっても演奏の合間に音場補正を実行できるという利点がある。   In the above-described embodiment, regarding the setting of the output frequency characteristic by the output frequency characteristic setting means 82, the noise sound for setting the output frequency characteristic stored in the music database 70 is output, and the noise sound is output to the microphone 48. In the example described above, the frequency characteristic is set so as to match the recommended frequency characteristic by collecting and analyzing the sound, but without performing the sound collection by the microphone 48 by outputting the noise sound, The output characteristic may be set by executing a predetermined internal process. In this way, it is not necessary to output the noise sound every time the output frequency characteristic is set, and the sound field can be corrected between performances even when the user is performing a karaoke performance. There are advantages.

また、前述の実施例において、前記出力周波数特性設定手段８２は、前記ノイズ音の周波数特性が前記推奨周波数特性と一致するように自動的にその出力特性を変更するものであったが、例えば前記ディスプレイ４４に前記ノイズ音の周波数特性を示す曲線９０を表示させると共に前記推奨周波数特性を示す曲線９２を表示させ、マニュアル操作によりその出力特性を変更する態様であっても構わない。斯かる態様によっても、音場設定を行うために音響に関する専門的な知識を一切要せず、使用条件に応じた最適な音場を容易に実現できる。   In the above-described embodiment, the output frequency characteristic setting unit 82 automatically changes the output characteristic so that the frequency characteristic of the noise sound matches the recommended frequency characteristic. The display 44 may be configured to display the curve 90 indicating the frequency characteristic of the noise sound and display the curve 92 indicating the recommended frequency characteristic, and change the output characteristic by manual operation. Also according to this aspect, it is possible to easily realize an optimal sound field according to use conditions without requiring any specialized knowledge about sound in order to set the sound field.

また、前述の実施例では特に言及していないが、前記出力周波数特性設定手段８２は、カラオケボックス等の屋内利用環境における音場を設定するものであってもよいし、屋外利用環境における音場を設定するものであっても構わない。   Further, although not particularly mentioned in the above-described embodiment, the output frequency characteristic setting means 82 may set a sound field in an indoor use environment such as a karaoke box or a sound field in an outdoor use environment. May be set.

その他、一々例示はしないが、本発明はその趣旨を逸脱しない範囲内において種々の変更が加えられて実施されるものである。   In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

１０：カラオケ装置、４８：マイクロフォン（音声入力装置）、７２：音声データベース、８０：音声周波数特性算出手段、８２：出力周波数特性設定手段、８４：出力周波数特性補正手段、８６：楽曲周波数特性算出手段   10: Karaoke apparatus, 48: Microphone (voice input device), 72: Voice database, 80: Voice frequency characteristic calculation means, 82: Output frequency characteristic setting means, 84: Output frequency characteristic correction means, 86: Music frequency characteristic calculation means

Claims (6)

多数の楽曲のうちから選択される楽曲の演奏出力を行うと共に、音声入力装置から入力される音声を増幅して出力させるカラオケ装置であって、
前記楽曲の演奏出力に係る周波数特性として、その演奏出力に係る複数の周波数帯域毎のゲインを設定する出力周波数特性設定手段と、
前記音声入力装置から入力される歌唱者の音声の周波数解析を行うことで、該音声の周波数特性として、該音声の複数の周波数帯域毎の音圧レベルを算出する音声周波数特性算出手段と、
前記出力周波数特性設定手段により設定された前記楽曲の演奏出力に係る周波数特性を、該楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段により算出された該音声の周波数特性に基づいて補正する出力周波数特性補正手段と
を、備えたものであることを特徴とするカラオケ装置。 A karaoke device that performs performance output of a song selected from a large number of songs, and amplifies and outputs sound input from a sound input device,
Output frequency characteristic setting means for setting gains for a plurality of frequency bands related to the performance output as frequency characteristics related to the performance output of the music;
By performing frequency analysis of the voice of the singer input from the voice input device, the voice frequency characteristic calculating means for calculating the sound pressure level for each of a plurality of frequency bands of the voice as the frequency characteristic of the voice;
Based on the frequency characteristic of the sound calculated by the sound frequency characteristic calculating means corresponding to the voice of the singer of the music, the frequency characteristic related to the performance output of the music set by the output frequency characteristic setting means. A karaoke apparatus comprising: an output frequency characteristic correcting means for correcting. 前記音声周波数特性算出手段により算出された音声の周波数特性を、該音声に対応する歌唱者と対応付けてデータベースに記憶させるものであり、
前記出力周波数特性補正手段は、前記楽曲の演奏出力に際して、前記出力周波数特性設定手段により設定された周波数特性を、該楽曲の歌唱者に対応して前記データベースに記憶された該歌唱者の音声の周波数特性に基づいて補正するものである
請求項１に記載のカラオケ装置。 The voice frequency characteristic calculated by the voice frequency characteristic calculating means is stored in a database in association with a singer corresponding to the voice,
The output frequency characteristic correcting means is configured to output the frequency characteristic set by the output frequency characteristic setting means when the musical performance is output of the singer's voice stored in the database corresponding to the song singer. The karaoke apparatus according to claim 1, wherein the karaoke apparatus corrects based on frequency characteristics. 前記出力周波数特性補正手段は、前記出力周波数特性設定手段により設定された演奏出力に係るゲインが相対的に大きい周波数帯域が、該楽曲の歌唱者の音声の音圧レベルが相対的に大きい周波数帯域に相当する場合には、該周波数帯域における演奏出力のゲインを低下させる補正を行うものである請求項１又は２に記載のカラオケ装置。   The output frequency characteristic correcting means has a frequency band in which the gain relating to the performance output set by the output frequency characteristic setting means is relatively large, and a frequency band in which the sound pressure level of the singer's voice is relatively large The karaoke apparatus according to claim 1, wherein the karaoke apparatus performs correction for reducing the gain of the performance output in the frequency band. 前記出力周波数特性補正手段は、前記出力周波数特性設定手段により設定された演奏出力に係るゲインが相対的に小さい周波数帯域が、該楽曲の歌唱者の音声の音圧レベルが相対的に小さい周波数帯域に相当する場合には、該周波数帯域における演奏出力のゲインを増加させる補正を行うものである請求項１から３の何れか１項に記載のカラオケ装置。   The output frequency characteristic correcting means is a frequency band in which the gain relating to the performance output set by the output frequency characteristic setting means is relatively small, and the sound pressure level of the voice of the singer of the music is relatively small 4. The karaoke apparatus according to claim 1, wherein a correction for increasing a gain of a performance output in the frequency band is performed. 前記出力周波数特性設定手段は、前記カラオケ装置が利用される環境において該カラオケ装置から出力された音情報を前記音声入力装置により集音し、該音情報の複数の周波数帯域毎の音圧レベルが予め定められた推奨周波数特性と一致するように前記演奏出力に係る周波数特性を設定するものである請求項１から４の何れか１項に記載のカラオケ装置。   The output frequency characteristic setting means collects sound information output from the karaoke device in an environment where the karaoke device is used by the sound input device, and a sound pressure level for each of a plurality of frequency bands of the sound information is collected. 5. The karaoke apparatus according to claim 1, wherein a frequency characteristic related to the performance output is set so as to coincide with a predetermined recommended frequency characteristic. 前記楽曲の演奏出力の進行に応じて経時的に変化する複数の周波数帯域毎の音圧レベルを算出する楽曲周波数特性算出手段を備え、
前記出力周波数特性補正手段は、前記出力周波数特性設定手段により設定された前記楽曲の演奏出力に係る周波数特性を、該楽曲の歌唱者の音声に対応して前記音声周波数特性算出手段により算出された該音声の周波数特性及び該楽曲に対応して前記楽曲周波数特性算出手段により算出された周波数特性に基づいて補正するものである
請求項１から５の何れか１項に記載のカラオケ装置。 Music frequency characteristic calculating means for calculating sound pressure levels for a plurality of frequency bands that change over time according to the progress of performance output of the music,
The output frequency characteristic correcting unit calculates the frequency characteristic related to the performance output of the music set by the output frequency characteristic setting unit by the audio frequency characteristic calculating unit corresponding to the voice of the singer of the music. 6. The karaoke apparatus according to claim 1, wherein the karaoke apparatus corrects based on the frequency characteristic of the sound and the frequency characteristic calculated by the music frequency characteristic calculating unit corresponding to the music.
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