JP4027479B2 - Karaoke device that plays the latest digital broadcast music from the beginning during karaoke performance pauses - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a karaoke apparatus, and more specifically to a karaoke apparatus to which a digital broadcast receiving function is added.
[0002]
[Prior art]
Currently, CS digital multi-channel broadcasting using a communication satellite (hereinafter referred to as CS) as a relay station is operated as digital broadcasting. This CS digital multi-channel broadcasting can broadcast more than 100 channels of TV and radio programs with one CS by multiplexing technology based on the MPEG2 standard. Further, in addition to program audio and video, characters, source codes, and the like can be multiplexed as supplementary data in the broadcast data of each program.
[0003]
An IRD (Integrated Receiver / Decoder) is prepared to receive CS digital multi-channel broadcasts and reproduce program video and audio. The IRD reproduces video signals and audio signals of programs by processing broadcast data in broadcast radio waves captured by a parabolic antenna or the like. The video and audio of the program are output by an audio visual (AV) device connected to the audio / video output unit of the IRD. In addition, multiplexed auxiliary data can be extracted and used by a computer or the like.
[0004]
Since CS digital multi-channel broadcasting can be easily auditioned simply by connecting the IRD to an AV device, CS digital multi-channel broadcasting can be used during performance pauses such as when there is no reservation for performance of a requested song at a karaoke venue. A broadcast music program is output as BGM from a speaker of a karaoke apparatus. In addition, if information related to a song being broadcast (such as a song title or a singer name) is multiplexed as incidental data, this data can be displayed on a display.
[0005]
[Problems to be solved by the invention]
When a CS digital multi-channel broadcast music program is used as a BGM at a karaoke venue, the purpose is to eliminate the “badness” that tends to be in a silent state during the performance suspension period and to excite the venue. However, the performance of the broadcast music is rarely started at the timing when the performance pause period starts, and the broadcast music in the middle of the performance starts to suddenly flow. Therefore, even if the silent state can be eliminated, the effect of raising the mood can hardly be expected.
[0006]
In addition, the performance may end as soon as BGM begins to flow. This will make the mood more bright than a lively one.
[0007]
Therefore, the present invention, when outputting a digital broadcast music program as a BGM to a speaker during a performance pause of karaoke music, etc., always uses a supplementary data multiplexed in the digital broadcast to perform at any time. An object of the present invention is to provide a karaoke apparatus capable of playing broadcast music from the start time.
[0008]
[Means for Solving the Problems]
The karaoke apparatus according to the present invention is specified by the following items (1) to (7).
(1) A karaoke apparatus provided with tuner means, control means, storage means, karaoke performance means, and playback means. (2) The tuner means receives broadcast data of a digital broadcast music program ( 3) Broadcast data is multiplexed with audio data of music, and head identification data that can identify the beginning of the music is multiplexed. (4) The control means performs recording processing and has a performance reservation for karaoke music (5) When the recording process identifies the beginning of the music by the head identification data received by the tuner means, the sound received by the tuner means after that point When data is sequentially recorded after a predetermined start address of the storage means and audio data is recorded up to a predetermined end address of the storage means, (6) In the karaoke performance mode, the karaoke performance reserved for performance is played in order by the karaoke performance means, and the sound is output. (7) The broadcast music performance mode is stored in the storage means. The audio data recorded after the first address is sequentially read out and reproduced by the reproducing means for sound output.
In the present invention, in the broadcast music performance mode, it is desirable to fade out the reproduction volume in the section immediately before the end address of the storage means.
[0010]
In the present invention, in the broadcast music performance mode, it is desirable to pause the playback when the head of the music following the music that has been played back is not recognized when the music is played up to the end address of the storage means.
[0011]
In the present invention, the head identification data is a song ID that identifies a song being broadcast as audio data, and the recording process uses a method of detecting the change point of the song ID received by the tuner means and recognizing the beginning of the song. Can be adopted.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
=== CS digital multi-channel broadcasting system ===
A CS digital multi-channel broadcasting system will be described as an embodiment of a digital broadcasting system including a karaoke apparatus according to the present invention. FIG. 1 is a basic configuration diagram thereof, which includes a broadcasting station 1, a CS 10, and a karaoke apparatus 100. The karaoke apparatus 100 is a reception / playback karaoke apparatus 100 in which an integrated reception / playback apparatus (IRD) for CS digital multi-channel broadcasting is built in a karaoke performance terminal in a conventional communication karaoke system. The reception / playback karaoke apparatus (hereinafter referred to as karaoke apparatus) 100 can perform data communication with the broadcasting station 1 or the karaoke host station 200 via the telephone line 50 as necessary.
[0013]
Broadcast data transmitted by CS digital multi-channel broadcasting is multiplexed data according to the MPEG2-Systems standard. Appropriate incidental data such as characters are appropriately included in addition to audio signals and video signals of programs compressed and encoded according to the MPEG2 standard. Multiplexed at a certain point.
[0014]
FIG. 2 shows a schematic structure of broadcast data of a music program in this embodiment. The song ID is multiplexed with the audio data of each song broadcast in the music program, and when a certain song is broadcast, the corresponding song ID is repeatedly transmitted, and when the next song is played, the song ID is also changed. We are going to switch to it.
[0015]
The broadcast station 1 adds scramble data to the multiplexed data as necessary, and further time-multiplexes a plurality of programs broadcast on other channels.
This program-multiplexed broadcast data is QPSK modulated and transmitted by a carrier wave having an appropriate frequency.
[0016]
=== Karaoke device ===
<Basic configuration and karaoke music performance>
FIG. 3 shows a configuration diagram of the karaoke apparatus 100. A central control unit 101 having a CPU, a RAM, and a ROM therein performs data transfer and control signal transmission to peripheral components via the data bus 150 and control bus 160. The central control unit 101 is connected to the telephone line 50 via the modem 103 and stores the karaoke data distributed from the karaoke host station 200 in the hard disk device 102. Then, appropriate karaoke data is retrieved from the hard disk device 102 in accordance with a request input input from the remote control transmitter 120 or the operation panel 111.
[0017]
Accompaniment music generation data such as MIDI data in the karaoke data is sequentially transferred to the synthesizer 130 to generate accompaniment music. The accompaniment music is mixed with the singing voice input from the microphone 132 by the mixing amplifier 131 and output to the speaker 133. Also, the lyrics rendering data in the karaoke data is transferred to the video RAM 140. Here, the lyrics image is expanded into a bitmap. Then, the video control unit 142 performs a process of superimposing the lyrics image on the mood video output from the video CD changer 141 and outputs the result to the display 143.
[0018]
The karaoke apparatus 100 can appropriately switch between the two karaoke music performance modes described above and the broadcast music performance mode in which a CS digital multi-channel broadcast music program is received and an audio signal of the broadcast music is output to a speaker. . Next, the configuration and operation of the IRD unit 180 which is the main control unit in the broadcast music performance mode will be described.
[0019]
<Reception and decoding of CS digital multi-channel broadcasting>
Broadcast radio waves are captured by the parabolic antenna 170 and converted to an intermediate frequency (IF) signal. The IRD unit 180 receives this IF signal and processes it. An IRD control unit 181 which is a microcomputer main body including a CPU, a RAM, and a ROM controls the tuning and demodulation processing units (182, 183) to demodulate the IF signal into digital multiplexed data.
[0020]
The demultiplexing unit 184 receives the digital multiplexed data and separates it into broadcast data for each program, and further separates audio data and video data and music ID in one program. In addition, processing for descrambling is also performed as necessary.
[0021]
In order for the user to view the program being broadcast in real time, the demultiplexed audio data and video data may be input to the MPEG2 decoding unit 185 as they are. The MPEG2 decoding unit 185 reproduces audio and video digital data into an analog audio signal and video signal and outputs them.
[0022]
The central control unit 101 controls the input of the mixing amplifier 131 and the video control unit 142 to the IRD unit 180 side during the performance pause period of the karaoke music, and outputs the audio and video of the music program to the speaker and the display.
[0023]
The IC card 187 set in the IC card interface unit 186 stores data related to the billing system and the descrambling system, such as trial recording of CS digital multi-channel broadcasting and descrambling information.
Then, at an appropriate communication opportunity, data communication is performed with the broadcast station 1 via the modem 103 to transfer the recorded contents.
[0024]
The karaoke apparatus 100 not only reproduces the CS digital multi-channel broadcast received as described above in real time but also records so that the latest broadcast music is always output from the start of the performance when the broadcast music performance mode is switched. / Has a function to play.
[0025]
=== Recording / playback function ===
<Recording operation in karaoke music performance mode>
The IRD unit 180 includes a data storage unit 188 for writing audio data exclusively. In this embodiment, a RAM 188 is prepared as the data storage unit 188. Of course, a predetermined memory space of the RAM in the IRD control unit 181 may be used as the data storage unit. In this embodiment, the data storage unit 188 can write MPEG2 digital audio data for about 10 minutes in real time after reproduction. Here, the voice data writing operation is referred to as “recording”.
[0026]
As described above, in this embodiment, the broadcast data of the music program is such that the ID of each song to be broadcast is multiplexed. The IRD control unit 181 uses this music ID as timing instruction data for recording start. That is, the IRD control unit 181 monitors the music ID extracted by the demultiplexing unit 184 and recognizes the time when the switching is detected as the time when the latest broadcast music starts playing. When the start of performance is recognized, the head address of the data storage unit 188 is accessed as the recording start point. Then, the music ID is recorded at the recording start point and recording is started. When the latest music ID is detected during the recording operation, the address accessed at that time is recorded as the recording end point, and the recording returns to the top address again to start recording the latest broadcast music. When the remaining capacity of the data storage unit 188 runs out during recording of a certain song, recording is interrupted until the next song ID is detected, so that the recorded song is always played from the performance start point during the playback operation described later. Is considered.
[0027]
<Recording / playback operation in broadcast music performance mode>
When the central control unit 101 recognizes that the performance pause period has been reached, such as when there is no performance reservation for the next karaoke music piece when the performance processing of a certain karaoke piece has been completed, the central control unit 101 switches the input of the mixing amplifier 131 to the IRD unit 180 side. At the same time, the IRD control unit 181 is instructed to read out the audio data in the data storage unit 188.
As a result, the operation mode is switched to the broadcast music performance mode. Of course, the mode can be switched by “manual operation” by the user. Even if the music program is a TV broadcast, the video is not output on the display, but a mood video recorded on an appropriate video CD, a reminder display for performance reservation input, or the like is output.
[0028]
When receiving the data read instruction, the IRD control unit 181 sequentially extracts the audio data of the recorded music from the head address of the data storage unit 188 and transfers it to the MPEG2 decoding unit 185. As a result, the audio signal of the recorded music is reproduced and output to the speaker. Here, the audio data transfer operation by the IRD control unit 181 is referred to as “reproduction”.
[0029]
On the other hand, music programs are being broadcast even during playback. The IRD control unit 181 performs time-sharing processing so as to record the latest broadcast music in parallel with the reproduction operation. Thus, if the amount of audio data of the broadcast music is less than or equal to the capacity of the data storage unit 188, the broadcast music is continuously recorded in real time, and the recorded music is continuously reproduced with a predetermined delay. become. Note that the playback and recording speeds (stored per unit time and the number of transfer bits) are the same, so that the broadcast music being recorded is not reproduced.
Of course, assuming that the transmission speed from the broadcasting station (the number of transmission bits per unit time) is variable, the recording speed is constant above the maximum transmission speed. When the transmission is performed at a recording speed or lower, the memory usage per unit time is made constant by skipping the address of the data storage unit 188.
[0030]
Also, there is a case where the reproduction of the music is started immediately after the recording of the broadcast music is started. In such a case, when the playback of the music is finished and the head address is accessed again, if the music program being broadcast is broadcasting just between the next broadcast music, the data storage unit 188 plays it back. The finished recorded music remains without being updated. Therefore, when the IRD control unit 181 recognizes that the same music ID as that of the recorded music immediately after the reproduction is recorded at the head address, the reproduction is paused until the recording of the latest broadcast music is started, and the same recorded music is repeated. I try not to play it.
When the request for karaoke music is input again in the broadcast music performance mode, the central control unit 101 immediately stops the reproduction and switches to the karaoke performance mode.
[0031]
=== Other Examples etc. ===
In the above embodiment, every time the latest broadcast music is received, recording is performed from the head address of the data storage unit. As a result, the reproducible recording music is one, but the recording of the next broadcasting music may be started subsequently from the recording end point of the broadcasting music. Thereby, a plurality of music can be recorded depending on the performance time of the broadcast music. Then, the recorded music having the recording start point and the end point may be reproduced from those recorded earlier.
[0032]
In the above embodiment, it is considered that the same recorded music is not reproduced repeatedly. However, if the performance time of the broadcast music is extremely long, the reproduction interruption state continues for a long time. Therefore, when the playback interruption state continues for a predetermined time or longer, when the predetermined condition is satisfied, exceptionally the same music is repeatedly played back, or the audio data of the music program is input to the MPEG2 decoding unit 185 in real time and broadcast. The music may be played in real time. In the case of a TV broadcast, the video may also be output.
[0033]
The discomfort that the playback sound is interrupted may be eliminated by fading out the output sound when switching the mode or playing a long piece of music that is not recorded until the end of the performance.
[0034]
The karaoke apparatus in the above-described embodiment is compatible with a case where a broadcasting station multiplexes and transmits a song ID during performance of a broadcast song. In addition to this, the broadcasting station inserts timing instruction data directly at the performance start time and performance end time in the broadcast time series of the music program, or inserts timing instruction data directly at the performance start time and sets the end point to the start time. It is assumed that various transmission methods are employed such as designation by relative time from. However, the process for extracting the auxiliary data multiplexed from the broadcast data in the karaoke apparatus is the same. Therefore, it is possible to cope with any transmission method simply by changing software for analyzing the extracted data.
[0035]
Note that the performance start point and end point do not indicate the beginning and end of the actual performance, but may be inserted at appropriate points such as chapters in a song with a long performance time.
[0036]
【The invention's effect】
According to the karaoke apparatus of the present invention, when the sound of a digital broadcast music program is used as BGM during a karaoke music performance pause period at a karaoke venue or the like, the performance start time of the music being broadcast is detected and recorded. You can start and play from that recording start point during the pause. For this reason, switching from karaoke music to BGM is made without any sense of incongruity, and the atmosphere of the venue is not impaired.
[0037]
Moreover, the memory area of a memory | storage part can be used effectively by recording a some music in the memory | storage part of a broadcast music. Furthermore, if recording is performed while updating data using a limited memory space, it is not necessary to provide a large-capacity storage unit.
[0038]
Furthermore, by recording and playing back in parallel, the latest broadcast music can be recorded even during playback.
[0039]
When a very long song is recorded and the same song data is not updated for more than its playback time and remains in the memory, such as when the specified condition is met, the song being played is played back in real time, resulting in playback interruptions It is possible to avoid situations where the karaoke venue is whitened or the user is bored, such as in silence or repeated playback of the same music.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a digital multi-channel broadcasting system in an embodiment of the present invention.
FIG. 2 is a structural diagram of multiplexed data transmitted in the embodiment.
FIG. 3 is a configuration diagram of a karaoke apparatus according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Broadcasting station 100 Karaoke apparatus 101 Central control part 180 IRD part 181 IRD control part 185 MPEG2 decoding part 188 Data storage part

Claims (4)

A karaoke apparatus comprising tuner means, control means, storage means, karaoke performance means, and playback means,
The tuner means receives broadcast data of a digital broadcast music program,
Broadcast data consists of music audio data and head identification data that can identify the beginning of the music.
The control means performs a recording process and performs a karaoke performance mode when there is a performance reservation for karaoke music, and a broadcast music performance mode when there is no reservation,
In the recording process, when the head identification data received by the tuner means is identified, the audio data received by the tuner means after that point is sequentially recorded after the predetermined start address of the storage means and the storage means When recording audio data up to a predetermined end address, the recording operation is paused until the beginning of the next song is recognized,
In the karaoke performance mode, the karaoke music reserved for performance is played in order by the karaoke performance means to output sound,
The broadcast music performance mode is a karaoke apparatus in which audio data recorded after the start address of the storage means is sequentially read out and reproduced by the reproducing means for sound output. 2. The karaoke apparatus according to claim 1, wherein the broadcast music performance mode fades out the reproduction volume immediately before the end address of the storage unit. 3. The karaoke apparatus according to claim 1, wherein in the broadcast music performance mode, when playback is performed up to the end address of the storage means, playback is paused if the beginning of the music following the music that has been played back immediately before is not recognized. . The head identification data is a song ID that identifies a song being broadcast as audio data,
The karaoke apparatus according to any one of claims 1 to 3, wherein the recording process detects a change point of the music ID received by the tuner means and recognizes the head of the music.

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