JP4050211B2 - Karaoke equipment - Google Patents

Description

  The present invention relates to a karaoke apparatus having a function of reproducing background music (hereinafter referred to as BGM) between karaoke performance songs.

  In the karaoke apparatus, while the karaoke performance is not being performed because the user is selecting a song or the like, the BGM is reproduced so as not to be muted and messed up. Among the songs played as BGM, there are many popular songs and popular songs at that time. For this reason, customers such as taverns where BGM is playing often request songs that are playing as BGM and want to enjoy karaoke. However, it is often the case that the customer does not know the title of the song in such a case. In that case, the customer must ask the surrounding people for the name of the song, which is troublesome.

Patent Document 1 discloses a karaoke apparatus in which means for eliminating this annoyance is taken. This karaoke device reads and reproduces the music data of the CM music from the storage device between the music not performing karaoke performance. Also, the storage device stores a CM header corresponding to each CM song to be reproduced in this way, and the CM header includes the name of the CM song, the name of the singer, and the like. Information included in these CM headers is displayed on the monitor while the CM music is being reproduced. Therefore, the user can check the name of the CM song on the monitor while the CM song is being reproduced.
Japanese Patent No. 3299067

  Some karaoke apparatuses reproduce audio stream data received by broadcasting as BGM or CM between songs. A typical example is BGM playback using cable broadcasting. This type of karaoke apparatus applies the technology disclosed in Patent Document 1 to reproduce BGM and CM by receiving audio stream data broadcast in real time, not data stored in a storage device. I can't. Even if broadcasting is performed by embedding the song title in the header of the audio stream data for one song following Patent Document 1, reception of such audio stream data is started at an arbitrary timing. Therefore, when the reception of the audio stream data is started, if the broadcast of the header has already ended, the song name cannot be acquired on the karaoke apparatus side and cannot be displayed.

  The present invention has been made in view of the above-described circumstances, and in the case where BGM between songs is reproduced using broadcast-type media, even under a situation where reception of media is started at an arbitrary timing, It is an object of the present invention to provide a karaoke apparatus that can provide a user with information related to a BGM song immediately after the start of reception.

The present invention provides communication means for receiving audio stream data in which constituent bits of a plurality of bit strings each representing identification information associated with a song are distributed in a bit stream representing audio constituting the song; Identification information extraction means for sequentially extracting the constituent bits from the audio stream data received by the communication means and extracting the identification information represented by the bit strings by sequentially connecting the extracted constituent bits to form the bit string ; , playback and the identification information storage means for storing in association with body information specifying the singer of the song or the song corresponding to the identification information, the sound based on the audio stream data received by said communication means And the main body information associated with the identification information extracted by the identification information extraction means is stored in the storage means. A search unit for reading, displaying the body information read by said search means, to provide a karaoke apparatus characterized by comprising a utilization device for reproducing or executing.
According to this invention, while the communication means receives the audio stream data for one song, the identification information corresponding to the song is repeatedly extracted, and the main body information corresponding to the identification information is used. Accordingly, in the karaoke apparatus, the main body information corresponding to the song is immediately used no matter what timing the reception of the audio stream data of the song starts.
In a preferred embodiment, a reservation queue that sequentially stores the song numbers of karaoke songs that have been instructed to be played, and the song numbers stored in the reservation queue are read in order from the highest priority, and the karaoke songs corresponding to the read song numbers Karaoke song reproducing means for performing In this aspect, the communication means receives the audio stream data during a period when the karaoke song is not played, and the sound reproduction means receives the communication means during a period when the karaoke song is not played. Audio is reproduced based on the audio stream data to be played.
Further, in a preferred aspect, the karaoke apparatus is configured such that the audio stream data is divided into a plurality of frames each having a header, and the constituent bits of the bit string representing the identification information are at predetermined bit positions of the headers of the plurality of frames. Embedded, and the identification information extracting means sequentially extracts constituent bits from the predetermined bit position in the header of each frame, and sequentially connects the extracted constituent bits to form the bit string, thereby representing the bit string. is the extracted identification information.
The present invention relates to a process for receiving audio stream data in which a plurality of bit string constituent bits each representing identification information associated with a song are distributed in a bit stream representing audio constituting the song, and received. A process of extracting identification information from the audio stream data to be read, a process of reproducing audio based on the received audio stream data, a process of reading main body information associated with the extracted identification information from the storage means, A program for causing a computer to execute processing using the issued main body information is distributed to users via a telecommunication line, or a storage medium storing such a program is distributed to users. obtain.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 illustrates a communication system that provides a karaoke-related information distribution service to a karaoke apparatus 1 according to an embodiment of the present invention. In this communication system, a music distribution server 2 and an Internet radio station server 3 are connected to the karaoke apparatus 1 via the Internet 4. The music distribution server 2 accumulates the music data of the new music as needed, and distributes the music data of the new music that has not been distributed to each karaoke device 1 periodically (for example, every two weeks). The Internet radio station server 3 performs streaming reproduction of audio stream data of a plurality of channels (hereinafter abbreviated as CH) in the same server according to a schedule determined for each CH. FIG. 2 is a time chart showing the state. In the example shown in the figure, the audio stream data of the songs S11, S12, and S13 are sequentially reproduced on CH1, and the audio stream data of the songs S21, S22, and S23 are sequentially reproduced on CH2 at a timing completely independent of CH1. ing. The same applies to the other channels. When the Internet radio station server 3 receives a reception request accompanied with the designation of the CH from a certain karaoke apparatus 1, the internet radio station server 3 performs streaming transmission of the audio stream data of the designated CH to the karaoke apparatus 1 from the portion currently being reproduced.

  The audio stream data reproduced in each CH is reproduced as BGM during a period when the karaoke apparatus 1 is not reproducing the karaoke song. These audio stream data are, for example, encoded data obtained by encoding music that can be reproduced on the karaoke apparatus 1 side using an encoding algorithm of the MP3 (MPEG 1 layer 3) method. Note that the compression encoding method of music is not limited to MP3, and for example, the MPEG 1 layer 2 method can be adopted. FIG. 3 explains the origin of audio stream data that is streamed in response to a reception request from the karaoke apparatus 1. The audio stream data reproduced in the Internet radio station server 3 is composed of a plurality of MP3 frame sequences. Each MP3 frame includes a header and a payload. The header includes control information, and the payload includes encoded data of audio information of each section in which BGM music is divided into a predetermined time length. A predetermined number of these MP3 frames are placed in a packet and transmitted to the karaoke apparatus 1. The header of the MP3 frame has a private bit at a predetermined position. This private bit is an unused bit in MPEG. In this embodiment, this private bit is used to represent identification information associated with a BGM song.

  Hereinafter, the principle will be described with reference to FIG. In the present embodiment, a plurality of private bits are collected to form one private tag frame. Then, the constituent bits of a plurality of private tag frames are embedded in each private bit of a series of MP3 frames constituting the stream data of one BGM music. Each of these private tag frames is composed of a synchronization bit SYNC for frame synchronization, an information field I, and a frame check sequence FCS for detecting a code error. Here, the information field I of each private tag frame is composed of a plurality of bits, and represents identification information corresponding to the BGM music represented by the MP3 frame sequence as the embedding destination. This identification information is information specifying the main body information corresponding to the BGM song, more specifically the song name or singer name of the BGM song. In the present embodiment, the identification information and the main body information corresponding to the identification information are previously transmitted from the Internet radio station server 3 to each karaoke device 1 and stored in each karaoke device 1. The number of private tag frames that can be embedded in the MP3 frame sequence for one song decreases as the private tag frame lengthens, and increases as the MP3 frame sequence lengthens. However, in order to start receiving the audio stream data at an arbitrary timing on the karaoke apparatus 1 side and immediately obtain the main body information, the private tag frame is shortened as much as possible, and as many private tag frames as possible are MP3 for one song. It is preferable to embed in the frame row. Therefore, in this embodiment, instead of the main body information, identification information corresponding to the information is provided in the information field, so that many private tag frames can be embedded in the MP3 frame sequence.

  The Internet radio station server 3 stores a song type table shown in FIG. 5 in association with the audio stream data of the BGM song described above. This music type table is a table in which each CH, the genre of the BGM music reproduced in those CHs, and subdivision information for specifying these music in more detail are associated with each other. This table is rewritten when there is a change in the genre of music played on each channel. The internet radio station server 3 transmits the song type table to the karaoke device 1 when requested by the karaoke device 1. In addition, when a change occurs in the content of the song type table, the Internet radio station server 3 transmits the song type table to all karaoke apparatuses 1 that receive the service of the server. The music type table may be transmitted by the Internet radio station server 3 using e-mail, for example.

  FIG. 6 is a block diagram showing the configuration of the karaoke apparatus 1 according to this embodiment. In FIG. 6, the CPU 101 develops various control programs stored in the ROM 102 or HDD (Hard Disk Drive Device) 103 on the RAM 104 and executes them to control the entire karaoke apparatus 1. Among the controls performed by the CPU 101, karaoke song playback control, BGM playback control performed using the Internet radio station server 3 between songs for which karaoke songs are not played, and BGM playback There is control for extracting identification information from audio stream data received therein and using body information corresponding thereto. These control modes will be described later. The HDD 103 stores music data for karaoke performance and image data for karaoke background video. The music data includes a MIDI music data track and a lyrics data track. The image data for karaoke background video is MPEG (Moving Picture Expert Group) 2 format moving image encoded data. There are two types of image data, one corresponding to each piece of music and the other used in common for a plurality of songs belonging to the same genre. The music data and the image data for karaoke background video described above are distributed from the music distribution server 2 described above and stored in the HDD 103. In the present embodiment, as described above, identification information and main body information for each BGM song are received in advance from the Internet radio station server 3 and stored in the HDD 103.

  The network interface 105 is a device that serves as a communication unit when the CPU 101 exchanges information with devices such as the music distribution server 2 and the Internet radio station server 3 via the Internet 4. The operation interface 106 is a device that delivers various types of operation information generated in response to operations of various operators and a remote controller provided on the operation panel of the karaoke apparatus 1 to the CPU 101.

  The MPEG decoder 107 is a device that decodes image data from MPEG encoded data. The image processing circuit 108 is a circuit that performs various types of image processing such as synthesis processing of image data decoded by the MPEG decoder 107 and image data created by the CPU 101. The monitor 109 is a device that displays the image data that has undergone the image processing of the image processing circuit 108 as an image. The sound source 110 is a device that plays a role as a karaoke performance means, and generates a musical sound signal in accordance with a MIDI event supplied from the CPU 101. The audio processing circuit 111 is a device that plays a role as audio reproduction means for decoding audio encoded data such as MP3 encoded data and outputting an audio signal. The mixer 113 mixes and outputs signals output from the sound source 110, the audio processing circuit 111, and the microphone 112. The output signal of the mixer 113 is amplified by the amplifier 114 and output from the speaker 115 as sound.

  FIG. 7 is a flowchart showing the operation of the CPU 101 of the karaoke apparatus 1. The operation of this embodiment will be described below with reference to this flowchart. First, in step S101, the CPU 101 refers to a reservation queue provided in the RAM 104, and determines whether any music number remains in the reservation queue. When the determination result is “YES”, the CPU 101 executes the karaoke song reproduction process of step S111.

  In this karaoke song reproduction process, the CPU 101 first reads the song number stored at the head of the reservation queue (that is, the song number with the highest priority). At this time, the read music number is deleted from the reservation queue. Next, the CPU 101 reads out the music data corresponding to the music number read from the reservation queue and the image data for the karaoke background video from the HDD 103. Then, the CPU 101 sequentially transmits MIDI events to the sound source 110 according to the MIDI music track in the music data to perform the music performance, and generates lyric image data according to the lyrics data track in the music data, and matches the progress of the music performance. To the image processing circuit 108. On the other hand, the CPU 101 sends the moving image encoded data for the karaoke background video read from the HDD 103 to the MPEG decoder 107 to be decoded. The image data for karaoke background video obtained from the MPEG decoder 107 is sent to the image processing circuit 108. The image processing circuit 108 combines the image data of the karaoke background video and the image data of the lyrics received from the CPU 101, and outputs the combined image from the monitor 109. The mixer 113 mixes the musical tone signal of the music performance sound output from the sound source 110 and the voice signal of the user singing voice input from the microphone 112 and sends the mixed signal to the amplifier 114. The amplifier 114 outputs the output signal from the mixer 113 as sound from the speaker 115. When the karaoke song reproduction for one song is completed by such an operation, the CPU 101 ends the karaoke song reproduction process (step S111), and performs the determination in step S101 again. If any song number remains in the reservation queue, the karaoke song reproduction process of step S111 is executed for the song number.

  On the other hand, if no music number remains in the reservation queue in step S101, the process of the CPU 101 proceeds to step S102. In step S102, the CPU 101 refers to the corresponding area in the RAM 104, confirms the setting content related to the inter-music operation, and determines whether or not the setting for performing BGM playback has been made. If the determination result is “YES”, the process of the CPU 101 proceeds to step S103, and if “NO”, the process proceeds to step S108. Note that the information related to the movement between songs is set in a predetermined area in the RAM 104 by a remote control operation performed by the user.

  Next, in step S103, the CPU 101 acquires designation of the genre of BGM to be reproduced. There are various modes for acquiring the genre designation. In a preferable aspect, the designated genre is randomly selected from various genres each time step S103 is executed between songs.

  When the acquisition of the specified genre is completed, the CPU 101 acquires a CH corresponding to the specified genre (step S104). In the process of step S104, the CPU 101 refers to the song type table (FIG. 5) acquired in advance from the Internet radio station server 3 and stored in the RAM 104, and acquires the CH corresponding to the designated genre. There may be a plurality of CHs corresponding to the specified genre. In such a case, for example, one CH is randomly selected from the plurality of CHs. Instead of doing this, in step S103, not only the designated genre of the BGM to be reproduced but also the designation of the subdivision information is acquired. In step S104, the subdivision information that belongs to the designated genre and is designated. Alternatively, the CH broadcasting the corresponding BGM may be obtained based on the song type table in the RAM 104.

  Next, in step S105, the CPU 101 designates the CH acquired in step S104 and sends a reception request for the CH to the Internet radio station server 3. FIG. 8 is a sequence diagram showing a communication procedure performed between the CPU 101 and the Internet radio station server 3 at this time. First, the CPU 101 sends a URL (Uniform Resource Locator) including designation of CH to the Internet radio station server 3 in order to start communication according to RTSP (Real time Transfer Streaming Protocol). For example, the IP address of the Internet radio station server 3 is AAA. BBB. CCC. When the channel is DDD and the desired reception channel is CH1, the CPU 101 transmits “rtsp: //AAA.BBB.CCC.DDD/CH1” as the URL, and is connected to the Internet radio station server 3 by RTSP. Establish. Text information such as “CH1” included in the URL is delivered to the Internet radio station server 3. The Internet radio station server 3 recognizes the CH designated by the CPU 101 based on this text information. Next, in order to negotiate communication conditions such as a bit rate, the CPU 101 transmits a Describe Request including necessary information to the Internet radio station server 3 (step S201).

  When an OK response is sent from the Internet radio station server 3 to the CPU 101 in response to this Request Request (step S202), the CPU 101 sends a Setup Request requesting session connection to the Internet radio station server 3 (step S203). On the other hand, an OK response is returned from the Internet radio station server 3 to the CPU 101 to complete the session setting (step S204). When the CPU 101 confirms the completion of the session extension by receiving the OK response, the CPU 101 sends a Play Request requesting transmission of the audio stream data of the designated CH to the Internet radio station server 3 (step S205). The Internet radio station server 3 sends an OK response to this Play Request to the CPU 101 (step S206), and then sequentially packetizes the audio stream data of the CH designated by the CPU 101 and starts packet transfer (step S207). While this audio stream data packet transfer (step S207) is performed, a sender report including information such as the number of transmitted packets is occasionally sent from the Internet radio station server 3 to the CPU 101 in accordance with RTCP (Real time Transfer Control Protocol). (Step S208). Also, from time to time, information indicating the number of received packets and a request to reproduce unreceived packets are sent as a Receiver Report from the CPU 101 to the Internet radio station server 3 (step S209).

  On the other hand, when the CPU 101 receives an OK response to the Play Request from the Internet radio station server 3 (step S206), the CPU 101 ends the step S105 in FIG. 7, and starts the BGM playback process in parallel with the process shown in FIG. After starting the BGM playback process in step S106, the CPU 101 refers to the corresponding area in the RAM 104 to confirm the setting contents regarding the inter-song operation, and is set to perform BGV (background video) playback. It is determined whether or not (step S107). If the determination result is “YES”, the CPU 101 starts another inter-song processing (step S108) and proceeds to step S109. In this case, in parallel with the process shown in FIG. 8 and the BGM playback started in step S106, the “other inter-song process” in step S108 is executed, and in this “other inter-song process”, BGV playback is performed. In this BGV playback, under the control of the CPU 101, BGV image data stored in advance in the HDD 103 is read and displayed on the monitor 109. On the other hand, if the determination result of step S107 is “NO”, the process proceeds to step S109 without executing step S108. The “other song processing” in step S108 is also started when the determination result in step S102 is “NO”. In the “other inter-music processing” in this case, CM reproduction is performed. In this CM reproduction, CM script data stored in advance in the HDD 103 is read under the control of the CPU 101, and a CM image is displayed on the monitor 109 based on the script data.

  Thereafter, while the BGM playback process is being performed or another inter-song process is being performed, the CPU 101 determines whether or not a karaoke song playback request has occurred, that is, a certain song number is stored in the reserved queue provided in the RAM 104. The determination of whether or not writing has been repeated is repeated (step S109). If the determination result is “NO”, the BGM playback process started in step S106 or the other inter-song process started in step S108 is continued.

  Next, details of the operation in the BGM playback process will be described with reference to FIG. In the BGM playback process started in step S106, the CPU 101 extracts the MP3 frame from each packet that sequentially arrives from the Internet radio station server 3, and buffers it in a predetermined buffering area 1041 in the RAM 104. At this time, if a missing packet is found, a retransmission request is sent to the Internet radio station server 3 (step S209 in FIG. 8). Then, the CPU 101 reads out the MP3 frame sequence of each packet buffered in the RAM 104 in accordance with each temporal order (frame detection processing 1011), and sends it to the audio processing circuit 111 (MP3 frame transmission 1012). The audio processing circuit 111 decodes this MP3 frame sequence and outputs an audio signal obtained by this decoding to the mixer 113. This audio signal is sent to the speaker 115 via the mixer 113 and the amplifier 114 and output as BGM.

  On the other hand, every time an MP3 frame is read from the buffering area 1041 in the frame detection processing 1011, the CPU 101 extracts private bits from the header of the MP3 frame and sequentially connects the extracted private bits to form a bit string. When the synchronization bit SYNC of the private tag frame is found in this bit string, one private tag frame starting from the synchronization bit SYNC is detected (private tag frame assembly processing 1013). Then, the CPU 101 extracts identification information from the information field I in the private tag frame, and writes it into the identification information buffer 1043 provided in the RAM 104 (identification information extraction processing 1014).

  Normally, constituent bits of a plurality of private tag frames are distributed in a BGM MP3 frame sequence for one song. The identification information extraction process 1014 is performed for each of these private tag frames, and each time the identification information extracted from the private tag frames is written into the identification information buffer 1042.

During the above operation, the CPU 101 monitors the contents of the identification information buffer 1042. When new identification information is written in the identification information buffer 1042 and the storage content of the identification information buffer 1042 changes, the main body information corresponding to the new identification information is read from the HDD 103 (main body information search processing 1015). And the process which uses the read main body information is performed (main body information utilization process 1016). A typical example of the main body information use process 1016 is a process of sending main body information such as a song title and a singer name to the image processing circuit 108 and displaying the telop on the monitor 109.
The above operation is performed during BGM playback.

Then, during BGM playback, a song number is input and transmitted to the requested song by remote control operation or the like, and when this is written to the reservation queue 1043, the determination result in step S109 in FIG. It progresses to the completion | finish process between music of step S110. In this inter-song end process, the CPU 101 ends the BGM playback process started in step S106 or the other inter-song process started in step S108. When ending the BGM playback process, as shown in FIG. 9, the CPU 101 transmits a tear-down request requesting the end of the session to the Internet radio station server 3 in accordance with RTSP (step S210). On the other hand, the session ends when an OK response is returned from the Internet radio station server 3 to the CPU 101 (step S110).
When the inter-song end process is completed as described above, the CPU 101 executes the karaoke music reproduction process using the music number written in the reservation queue (step S111 and reference numeral 1016 in FIG. 10). This process has already been described.

  As described above, according to the karaoke apparatus according to the present embodiment, when audio stream data is received from the Internet radio station server 3 and playback as BGM is started, the audio stream data is distributed in the audio stream data. Identification information is immediately extracted, and main body information corresponding to this is used. Therefore, no matter what timing the reception of the audio stream data of a song is started, the main body information corresponding to the song is immediately used.

Although one embodiment of the present invention has been described above, the present invention also includes the following embodiment.
(1) On the karaoke apparatus side, stream data for 2CH of the front program and the back program is received by the network interface 105 between the songs for which karaoke performance is not performed, and BGM playback is performed based on the stream data of the front program, Each main body information corresponding to each identification information extracted from each stream data of the front program and the back program is displayed on the monitor. As a method of determining each CH of the front program and the back program, for example, the CH acquired in step S104 of FIG. 7 is set as the CH of the front program, and the CH acquired when step S104 is executed before that is the back program. It is possible to consider a method of using CH. Alternatively, the CH of the front program may be acquired in step S104, and the CH of the back program may be determined according to the user's remote control operation.
(2) The main body information may not correspond to the BGM music one-on-one. For example, a singer's name, the name of the song that the singer sings, the song number used when requesting karaoke playback of the song, and the identification information that identifies this are prepared for each singer. Common identification information corresponding to the singer may be embedded in the audio stream data of a plurality of BGM songs corresponding to the singer.
(3) In the above embodiment, the display of the main body information is given as the form of use of the main body information. However, the form of use is not limited to display. For example, a device that synthesizes voice corresponding to character information may be added to a karaoke device, and voice corresponding to main body information may be provided by an earphone or the like for a visually impaired person. Alternatively, the main body information itself may be audio information, which may be reproduced as audio. The main body information may be, for example, a game application program. Application programs such as games and animation display are prepared for each BGM in the HDD of the karaoke device. When the karaoke device receives the audio stream data of the BGM song, it is associated with the identification information extracted therefrom. An application program (main body information) is executed. Use of the main body information in this embodiment is “execution”.

It is a figure which illustrates the communication system which performs the delivery service of the karaoke related information with respect to the karaoke apparatus which is one Embodiment of this invention. It is a time chart which shows a mode that the audio | voice stream data of a BGM music are reproduced | regenerated in the internet radio station server of the communication system. It is a figure which shows the structure of the audio | voice stream data of the BGM music reproduced | regenerated in the internet radio station server. It is a figure which shows the private tag frame by which the structure bit was distributed and arrange | positioned in the MP3 frame sequence which comprises the stream data, and the MP3 frame sequence. It is a figure which illustrates the music type table sent to the karaoke apparatus from the internet radio station server. It is a block diagram which shows the structure of the karaoke apparatus which concerns on the same embodiment. It is a flowchart which shows operation | movement of CPU of the karaoke apparatus. It is a sequence diagram which shows the procedure of the communication performed between the CPU and a radio station internet server. It is a figure which shows the detail of the BGM reproduction | regeneration process performed by the CPU.

Explanation of symbols

1 ... Karaoke device, 2 ... Music distribution server, 3 ... Internet radio station server, 4 ... Internet, 101 ... CPU, 102 ... ROM, 103 ... HDD, 104 ... RAM, 105 ... Network Interface, 106 ... Operation interface, 107 ... MPEG decoder, 108 ... Image processing circuit, 109 ... Monitor, 110 ... Sound source, 111 ... Mixer, 112 ... Microphone, 113 ... Mixer, 114 ... Amplifier 115. Speaker.

Claims (2)

Audio stream data in which constituent bits of a plurality of bit strings each representing identification information associated with the music are distributed in a bit stream representing audio constituting the music, and each frame has a plurality of headers. Communication means for receiving audio data that is divided and the constituent bits of a bit string representing the identification information are embedded in predetermined bit positions of headers of a plurality of frames ;
By sequentially extracting the constituent bits from the predetermined bit position in the header of each frame constituting the audio stream data received by the communication means, and sequentially connecting the extracted constituent bits to form the bit string, the bit string Identification information extraction means for extracting identification information represented by:
Storage means for storing the identification information in association with the music corresponding to the identification information or main body information for identifying the singer of the music;
Audio reproduction means for reproducing audio based on the audio stream data received by the communication means;
Search means for reading main body information associated with the identification information extracted by the identification information extraction means from the storage means;
A karaoke apparatus comprising: utilization means for displaying, reproducing or executing the main body information read by the retrieval means. The communication means receives the audio stream data transmitted from a server device,
The storage means stores the identification information and the main body information transmitted from the server device and received by the device prior to transmission of the audio stream data from the server device. 1. The karaoke apparatus according to 1.

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