JPH06289884A - Karaoke device - Google Patents

Abstract

PURPOSE:To provide the musical sound synthesis type KARAOKE device which reduces the amount of data on a back chorus by sounding a general back chorus by a sound source. CONSTITUTION:The musical sound synthesis type KARAOKE device equipped with the sound source 23C which generates music to be played on the basis of musical performance data generates a musical sound for a general chorus by the sound source 23C on the basis of general chorus data included in the musical performance data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone synthesizing type karaoke apparatus in which a musical composition is produced from a sound source, and particularly, a general-purpose back chorus (also called a general-purpose chorus) is produced from the sound source. The present invention relates to a karaoke device with a reduced amount of data.

[0002]

2. Description of the Related Art A karaoke device having a function of reproducing a designated musical piece and mixing and outputting voices inputted from a microphone is not limited to restaurants such as snacks, but also karaoke boxes and buses. It is also popular in mobile units. An ordinary karaoke device has a storage system that stores performance information and image information, an acoustic system that reproduces a performance song and mixes the voice of a singer with it, and a video image that displays a background image and lyrics image according to the performance song. There are many types of musical sound reproduction types that include a system and a control system that controls each of these systems. On the other hand, recently, a musical tone synthesizing type karaoke apparatus has appeared in which necessary music data is taken in from a host station via a communication line. This musical sound synthesizing type karaoke apparatus has a built-in sound source for generating musical sounds based on music data.

The musical tone reproducing type karaoke device cannot respond to requests other than the musical composition stored in the storage system, but if the musical tone synthesizing type karaoke device is used.
Since it is possible to have the song data supplied in response to the singer's request from many song data stored in the host station, in an extreme example, even if there is no song data on the karaoke device side, It will be possible to meet all requests from the singer. The complete tone synthesizing karaoke device has such a configuration, but in order to reduce the communication fee and communication time for accessing the host station each time a request is made, a storage device is provided on the karaoke device side and the karaoke device is loaded from the host station here. There is also a semi-tone synthesis type that stores song data and reuses it.

A musical piece used in a karaoke apparatus may have a back chorus to enhance the atmosphere of the musical piece. The general back chorus is a) "Wow"
It has a simple pronunciation like a vowel that accompanies a consonant such as "Ra" or "Ah", and can be repeated many times in the same song, or a chorus that can be shared by multiple playing songs, such as "Wa It is classified into a general-purpose chorus such as "wow wow ..." or "wowwowwow", and a phrase chorus peculiar to the performance music such as b) "Nagasaki".

[0005]

In the musical tone synthesizing type karaoke apparatus, the smaller the amount of data per song, the more preferable in consideration of online data transfer or data storage in the storage device. The merits of the musical sound synthesis type are
The karaoke device is equipped with a sound source, and it is possible to synthesize a performance song using song data of a small amount of data, but since the back chorus is not the synthesis target in the conventional method,
There was a drawback that there was a large amount of data for performance songs with back chorus. INDUSTRIAL APPLICABILITY According to the present invention, a relatively simple general-purpose chorus in the back chorus can be sounded from a sound source to reduce the data amount of song data, and thus the song data production cost, data transfer time, and storage capacity can be reduced. It is an object to provide a musical tone synthesizing type karaoke device.

[0006]

In order to achieve the above object, the present invention provides a general-purpose chorus included in the performance data in a musical tone synthesizing type karaoke apparatus provided with a sound source for producing a musical composition of a performance song based on the performance data. It is characterized in that a general-purpose chorus tone is generated from the sound source based on the data.

[0007]

In the tone synthesizing tone generator karaoke apparatus, it is possible to treat a general-purpose chorus, which is a combination of simple pronunciations, as one kind of musical tone and use the tone generator. Therefore, the general-purpose chorus data is included in the music data in advance, and the musical sound of the general-purpose chorus is generated from the sound source in the same manner as the musical sound of the musical performance when the musical composition is composed. In this way, the back chorus data amount can be reduced for the general-purpose chorus, so that the time for online communication can be shortened and the storage capacity can be reduced.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of the entire integrated karaoke system according to the present invention. In this figure, an existing tone reproduction karaoke apparatus 10 includes an LD changer system 11, a monitor (TV) 12, a mixing amplifier 13, a microphone 14,
The speaker 15 is included. The karaoke control device 20 of the present example is a tone synthesis synthesizing type having a built-in sound source unit, and is combined with the monitor 12 and the mixing amplifier 13 to form a tone synthesis karaoke device.

This karaoke control device 20 is called an integrated system commander, and it is a musical sound reproduction type karaoke device 1
By partially connecting to 0, it becomes possible to integrate and control all systems including tone synthesis / tone reproduction. Reference numeral 30 is a host station for supplying the requested song data to the karaoke controller 20 through a communication line 40 (for example, a high-speed ISDN line). Reference numeral 50 denotes a remote controller (remote controller) for giving instructions such as designation of performance music to the system.

The musical tone reproduction type karaoke apparatus 10 is a self-contained system. In the LD changer system 11, a plurality of LD (s) are stored as a storage medium storing a large number of audio signals of a musical composition and their background images and lyrics images. A laser disk) is housed therein, and the LD outputs the audio output AUDIO of the designated music to the mixing amplifier 13 and the video output VIDEO to the monitor 12. The mixing amplifier 13 mixes the singing voice of the singer input from the microphone 14 with the musical piece to be output, and the speaker 15 outputs the mixing signal in a loud voice. At this time, the monitor 12 stores the image information stored in correspondence with the music,
That is, the background image and the lyrics image are displayed to guide the singer's singing.

FIG. 2 is a block diagram showing the internal structure of the karaoke controller 20 in detail. The karaoke control device 20 is roughly classified into a commander unit 21 for tone synthesis / tone playback, a file system unit 22 for tone synthesis, and a performance / display unit 23 having various functions.

The commander section 21 is a key for receiving a command signal from a remote control receiver 21A for receiving a command signal from the remote controller 50 and a key input section (24 in FIG. 1) laid on the front panel of the karaoke control apparatus 20. According to the input from the input interface 21B, the remote control receiver 21A or the key input interface 21B, the music selection / reservation controller 21C for controlling the performance of the music, the display 21D for displaying the content of the music selection / reservation, and the display 21D are driven. A display driver 21E, an AV input / output selector 21F for selecting audio (A) and visual (V) inputs and outputs, and a control output interface 21G for controlling the LD changer 11A in the LD changer system 11. .

The file system unit 22 selects music
A file controller 22A that receives a performance instruction of a selected song from the reservation controller 21C and an ISDN line 4
An ISDN controller 22B (communication control device) that communicates with the host station 30 via 0 and a storage device 22C that stores the music data taken in through the ISDN line 40. When the file controller 22A receives a song selection / reservation instruction from the song selection / reservation controller 21C, it first searches the storage device 22C to determine whether or not the song data of the corresponding song is stored. If it is stored, the corresponding song data is read from the storage device 22C, and if it is not stored, the ISDN controller 22 is read.
Control B and have the host station transfer the corresponding song data. As the storage device 22C, for example, 100 KB HDD (hard disk) capable of storing song data for 1000 songs, with 10 KB per song (B is byte).
To use.

The performance / display unit 23 includes a data buffer 23A for temporarily holding music data from the file controller 22A, and a multimedia sequencer for controlling various events such as musical sounds, images and effects in accordance with event information contained in the music data. (MMS) 23B, a tone generator 23C that forms a musical tone of a performance song under the control of the sequencer 23B, a video processor 23D that generates a background image and lyrics image corresponding to the performance song, and a video processor 23D. Video output to LD changer 11
And a video superimposer 23E which is superimposed on an image (for example, a background image of a moving image) read from the background image LD (BGV-LD) of A.

AV input / output selector 21 of commander section 21
Regarding the audio, F selects either the audio output from the LD changer 11A or the musical sound synthesized by the sound source processor 23C and outputs it as the audio output to the mixing amplifier 13. For images, LD
The image from the changer 11A and the image from the video superimposer 23E are selected to be video output to the monitor 12. If the AV input / output selector 21F and the LD changer 11A are not connected, the karaoke control device 20 is systematically independent of the musical sound reproduction type karaoke device 10. It is the AV input / output selector 21F and the control output interface 21G that put the two in a coupled relationship.

In the integrated karaoke system having the connection relationship as shown in FIGS. 1 and 2, the commander section 21 which receives a song selection instruction from the remote controller 50 or the like first sets the corresponding song to L
It is confirmed whether it is stored in the D changer 11A. That is, the musical tone reproduction type karaoke apparatus 10 is given the first priority and its sources (audio and video) are effectively used. If the LD changer 11A has information on the corresponding song, the karaoke performance is performed using the audio and video outputs.

On the other hand, when the LD changer 11A does not have the data of the corresponding music, the file controller 2
The music number is transferred to 2A, and the music data on the music synthesis side is used. Also in this case, the host station 30 is not accessed immediately, but it is first confirmed whether or not the music data of the corresponding music is stored in the storage device 22C. Here, if the data of the corresponding song is stored in the storage device 22C, it is read and used. That is, the storage device 22
The second priority is given to the song data read from C. When the storage device 22C does not have the music data of the corresponding music, the host station 30 transfers the music data of the corresponding music through the ISDN line. That is, the acquisition of the music piece data from this host station is set as the third priority. In the complete tone synthesis type without the memory device 22C, data acquisition from the host station has the second priority.

FIG. 3 is a system configuration diagram for explaining the function of the integrated karaoke system according to the present invention in more detail. The part not shown in FIGS. 1 and 2 will be described below. A CPU (central processing unit) 61 controls and manages the operation of the entire karaoke system under the program ROM 23B. 62 is the CPU 61
Is a random access memory (RAM) used when controlling and managing the operation of this karaoke system. 63 is a bus (data, address) for connecting the entire system. 64 is MIDI to the outside
(Musical Instrument Digital Interface) An interface for connecting the musical instrument 42. 65 is an LD
This is a changer controller for controlling the changer 11, and has a replaceable configuration so as to be compatible with a plurality of models.

Reference numeral 66 is a multimedia sequencer 23B.
It is an ADPCM processor that expands ADPCM data output from the device by bit conversion and frequency conversion. 6
A pitch shifter 7 controls the pitch of the output of the ADPCM processor 66 according to the pitch information. Reference numeral 68 is an effector mixer that receives the output of the pitch shifter 67 and the output of the sound source processor 23C. 69 is the microphone 1
4 is a microphone effector that adds acoustic effects such as echo and exciter to the output of FIG. 70 is a microphone effector 69
2 is an audio DSP (sound field generator) that gives a sound field effect to the output of the above and the audio output of the LD changer 11.

Reference numeral 71 denotes an ISDN for the storage device 22C.
It is a portable downloader used when loading a large amount of song data without using the line 40. For example, it should be brought in and loaded by the installer at the initial stage when the tone synthesis system of this system was installed. Thus, the installer side does not have to communicate with the host station 30 through the ISDN line 40 for a long time. Other uses of the download machine 71 are possible.

The tone generator processor 23C is a so-called music synthesizer that is driven by song data and synthesizes tone signals of a performance song. For example, the tone processor 23C includes a tone generator unit that synthesizes tone sounds based on MIDI signals and a control unit that controls the tone generator unit. ing. The video processor 23D processes character information such as lyrics corresponding to a performance song and background image information such as a still image and a moving image to generate an image signal for display. Here, an example is shown in which the video processor 23D1 for the lyrics image and the video processor 23D2 for the background image are used. The LD changer 11 functions when playing a karaoke piece recorded on an optical disk, or when playing only video information, and when used as a musical tone synthesis system, in synchronization with the accompaniment performance synthesized by the sound source 23C, Video information including a still image of a predetermined frame of a predetermined disc or a moving image having a predetermined frame as a starting point is reproduced. The video selector 23E combines these three types of images into one screen and outputs the combined image.

The operation will be described below. "Music reproduction / music synthesis control" When a music piece is specified by operating the remote controller 24 or the front panel 50, C
The PU 61 refers to the index table stored in the storage means 22C, first confirms whether or not there is data of a song corresponding to the LD in the LD changer 11 as the first rank, and if there is, reproduces that portion. The video signal from the LD is input to the video selector 23E and displayed on the monitor 12, and the audio signal is input to the audio DSP 70 and output from the speaker 15. The singing voice of the singer is converted into an electric signal by the microphone 14 and input to the audio DSP 70 through the microphone effector 69. Since the mixer 13 mixes the performance music and the singing voice, the speaker 15 produces a mixed acoustic output.

When the designated song is not in the LD changer 11, the CPU 61 searches the song held in the HDD device 22C as the second rank. If there is a corresponding song in the HDD device 22C, the song data of the played song is read out and R is read.
Loaded to AM62 and sound source 23C according to this song data
The musical sound is synthesized with and a karaoke performance is performed. The performance of such a sound source karaoke is performed under the control of the sequencer 23B. With respect to the musical piece to be played, musical tone information is successively generated in the tone generator processor 23C in accordance with the musical piece data read from the RAM 62, and is reproduced from the speaker 15 via the mixer effector 68, the audio DSP 70, and the mixer 13.

Regarding the images, similarly, based on the music data read from the RAM 62, the video processor 23D1, 23D2 generates the lyrics image and the background image according to the progress of the music in accordance with the instruction of the sequencer 23B.
It is displayed on the monitor 12 via the video selector 23C. When the background image from the LD changer 11 is also used, these three images are combined and displayed by the video selector 23E. The lyrics image displayed on the monitor 12 is instructed so that the singer can easily understand where to sing because the color of the displayed lyrics is changed to a character of another color according to the progress of the singing. It Therefore, the singer is monitor 1
Sing with the microphone 14 while watching the lyrics image displayed in 2.

If the corresponding song data is not stored in the HDD device 22C, the CPU 61 controls to fetch the data of the relevant song online from the host station 30 as the third rank. That is, the ISDN line 40 is used to call the host station 30, and when it responds, the music number is sent and the corresponding music data is transferred. Since the music data may be reused, it is stored in the HDD device 22C.

"Transfer Data Format from Host Station" The format of the karaoke song data used in the sound source karaoke device usually starts from a song header as shown in FIG. 4 (a), followed by time information and event information. Data for one song is constructed by sequentially storing each track such as a lyrics display track, a sound source performance track, and a digital voice track. When data is transferred from the host station in this format, the karaoke apparatus cannot start playing unless the last digital voice track is loaded, so it takes a considerable time from the user's designation of the song to the actual start of playing.

For example, the capacity of the music header is 15 KB to 20
Assuming that the total capacity from KB, lyrics display track to digital audio track is 100 KB, communication time of about 15 seconds is required even if a high speed ISDN line capable of transferring 8 KB per second is used. Actually, since the overhead such as the calling time of the host station or the music selection time at the host station is added to this, it takes about 20 seconds in total. This waiting time is 10 times or more as long as the time (1 to 2 seconds) required to read one song from the hard disk.

Therefore, the format of transfer data is shown in FIG.
Change as shown in (b). That is, in the format of FIG. 4A, the lyrics display track is time-series data A1, A.
2, ... AN, a sound source performance track is a set of time series data B1, B2, ... BN, and a digital audio track is a time series data C1, C2 ,.
In the format of FIG. 2B, the first data A1, B1, C1 of each track is collected as the first track, and the second data A2, B2, C2 is collected as the second track. , And so on, similarly to the Nth data AN, B
Collect N and CN to form the Nth track.

As an example, when N = 6, the transfer of the first track (about 15 KB) is completed in about 2 seconds. Since it takes about 2 seconds to transfer the song header, it takes only 4 seconds to load the first track. Even if other overhead is added to this, it takes about 8 seconds. Moreover, since the karaoke device receiving this first track has obtained all the information of the lyrics display, sound source performance, and digital voice of the song, although it is a part, the karaoke performance is displayed at the event such as lyrics display. Along with this, it can be started promptly.
According to a trial calculation, for example, about 30 seconds of performance can be performed only by the first track obtained by dividing a song having a playing time of 3 minutes into 6 pieces.

Therefore, when the first track is loaded, the first track
Start playing the tracks, and load the second track onwards during that time. Then, when the performance of the first track is completed, a process of simultaneously loading the remaining tracks while performing the second track is performed in parallel. By doing this, you can start playing quickly while online.
Moreover, you can play to the end without interruption.

Each data of the lyrics display track, the sound source performance track, and the digital voice track has a small data amount like MIDI. On the other hand, a large amount of data such as back chorus may be added. In order to reduce the amount of data in such a case, in the example shown in FIG.
ADPCM (Adaptive Delta PC) compressed to 4 bits at a sampling rate of 11K or 22KHz
M) Data is added to the last track. This AD
The data size of the PCM track is expected to reach several hundreds of KB, and it takes much longer to transfer all the data. In such a case, as shown in FIG.
If the properly divided ADPCM data D1, D2, ... Are separately transferred to the first track, the second track, and so on, even a musical piece with a back chorus can be started quickly.

"Multimedia Sequencer" The multimedia sequencer 23B is based on a MIDI sequencer, has an OS function capable of simultaneously executing a plurality of tasks, and uses a software to handle a plurality of track events included in one piece of music data. It can be executed in real time synchronously. An event is a wide range of events that accompany a karaoke performance, and includes not only performance but also lyrics display, background display, sound effects, external device control, and the like.

The song data read from the RAM 62 by the CPU 61 is input to the sequencer 23B.
This song data is, for example, as shown in FIG. 4, MIDI data from a lyrics track to a digital audio track and ADPCM data added at the end. When the sequencer 23B inputs MIDI data for tone generator performance to the tone generator processor 23C, it is converted into musical tone information there. Further, the sequencer 23B adds the ADPCM data to the AD
When the data is output to the processor 66, it is decompressed into data before being compressed. The sequencer 23B controls the expansion timing of the AD processor 66 according to various event information.

As shown in FIG. 5, the structure of one track of normal MIDI data is as follows: from the top of the track TOT to the end of the track EOT.
Event EVENT and duration (waiting time) Δt
Are alternately arranged, the processing by the sequencer 23B is performed in a circulating manner as shown by arrows in the figure (however, the content of each event EVENT is different).

On the other hand, in the case of a track to which ADPCM data is added as shown in FIG. 4, MID is set as shown in FIG.
The ADPCM event is executed in parallel with the execution of the I event. The timing for executing the ADPCM event is
Since they are described in the MIDI data, both are executed in software synchronously. The contents included in the ADPCM event are 1) ADPCM sound number, 2) pitch shift valid / invalid flag, 3) volume, and 4) pitch shift amount.

The ADPCM data assumed here is waveform data in a musical composition and has a large amount of data as compared with MIDI data even though it is compressed. However, as far as the back chorus is concerned, there is also a part in which the same back chorus is simply transposed and repeated in one song. Therefore, a portion that can be shared by a plurality of back choruses is prepared in advance as a plurality of independent ADPCM data, and at the time of reproducing the performance music, the ADPCM data necessary for the back chorus reproduction included in the music is selected and combined. In this way, the amount of data transferred from the host station is reduced and the storage capacity is also small. The ADPCM sound number of 1) is for selecting a desired one from a plurality of such ADPCM data.

When the same ADPCM data is used by changing the pitch, it is necessary to show how much the pitch should be shifted. The pitch shift amount of 4) becomes information indicating this change amount. The pitch shift is performed by the pitch shifter 67 shown in FIG. The pitch shifter 67 is a karaoke processor (K
It is configured by using a DSP called P), and is used not only for the transposition in which the pitch is partially shifted, but also in the case of transposing all one piece of music by the user's operation. In this case, the pitch shift is performed by adding to the transpose.

The ADPCM data is used not only for back chorus but also for waveform data such as sound effects. The valid / invalid of pitch shift of 2) is to avoid pitch shift of sound effects that become unnatural in ADPCM data even if the user specifies transpose, even if the user specifies transpose. This flag is a flag that prevents the pitch shift from being performed only in the reproduction of. The volume 3) is for automatically setting the volume for each event.

For the back chorus of the "general-purpose chorus / phrase chorus" performance song, a) a simple pronunciation like a vowel accompanying a consonant such as "wa", "la", and "aa" is used. A chorus that can be repeated many times in a song, or that can be shared by multiple songs, such as a general chorus such as "Wow Wow ..." or "Wow Wow ..." and b) "Nagasaki" There is a phrase chorus peculiar to the performance song. In the sound source karaoke device, it is possible to treat a general-purpose chorus, which is a combination of simple pronunciations, as one type of musical sound, and to pronounce using a sound source. By doing so, the amount of back chorus data can be reduced, so that the time for online communication can be shortened and the storage capacity can be reduced.

A specific description will be given with reference to FIG.
1) For the general-purpose chorus data E1, waveforms with pronunciations such as "wow", "ra", and "ah" are sampled in advance, and the waveform data is stored as a library on the sound source side. 2) With respect to the phrase chorus data E2, waveform data of a pronunciation such as "Nagasaki" recorded for each song is stored in the HDD 22C or the like and loaded into the RAM 62 at the same time as the performance data. 3) The phrase chorus data E2 is controlled to sound based on the phrase timing data E3 included in the performance data. The general-purpose chorus data E1 is controlled to sound based on sound source control data E4 such as MIDI. Either of them is selected by the selector 80 (in some cases, both are sounded simultaneously). The function of the selector 80 portion may be OR logic. 4) Both of the chorus data E1 and E2 are mixed with other music data generated by the sound source and output.

"ADPCM data compression" The back chorus data has a large amount of data. Therefore, consider that the back chorus data is compressed on the host station 30 side and expanded on the karaoke device side. Although the compression method is arbitrary, for example, when ADPCM is adopted, on the karaoke device side,
This is expanded by the AD processor 66. In this case, general chorus data may be included as the back chorus data, but only the phrase chorus data will be considered here.

On the host station side, the phrase chorus data is digitally sampled and then compressed. In this case, for frequency compression, resampling processing is performed on the original data, and the resampling frequency is described in the header of the file (music data). The compression of the number of bits is performed by using a technique such as ADPCM, and the compression information is also described in the header. To give an example,
Normal compact disk data is 44.1K, 16
It is the bit sampling rate, which can be set to 2
Compress to 2.05K, 4-bit, or 11.025K, 4-bit ADPCM data.

On the karaoke machine side, as shown in FIG.
The compressed data e2 input to the selector 66A of the AD processor 66 is expanded according to the data conversion information E6 that describes the compression method and resampling frequency. That is, one of the bit number converters 66B is selected according to the conversion information E6, and the conversion frequency of the frequency converter 66C is determined. The phrase data E2 expanded in this way is mixed in the mixer 13 with other sounds.

By using such a compression technique, the amount of data to be transferred online can be reduced and the capacity to be stored in the HDD 22C can be reduced. The conversion information E6 may be set so that the same information is applied throughout one song. In this case, the conversion information E6 is described in the song header of FIG.
This conversion information E6 can be set for each phrase. In the case of setting for each phrase, a header is set for each divided data in the digital audio track, and it is described in the header. When conversion information is set for each phrase, the compression rate is partially changed in the same song, and for example, important parts are compressed with a higher sampling rate and a larger number of bits than other parts. A new degree of freedom is created.

As described above, in the musical tone synthesizing type karaoke apparatus, in order to reduce the amount of data of the back chorus, the data compression technique is applied to the specific phrase chorus, and the sound is emitted from the sound source for the versatile general chorus. This is effective, and in practice, it is possible to use both in combination.

[0046]

As described above, according to the present invention, a relatively simple general-purpose chorus in the back chorus can be sounded from the sound source to reduce the amount of music data.
Therefore, it is possible to provide a musical tone synthesizing karaoke device capable of reducing the production cost of music data, the data transfer time, and the storage capacity.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a general karaoke system to which the present invention is applied.

FIG. 2 is a block diagram of a karaoke control device.

FIG. 3 is a configuration diagram showing the system of FIG. 1 in detail.

FIG. 4 is a data structure diagram showing a format example of music data.

FIG. 5 is an explanatory diagram showing an execution mode of a MIDI event.

FIG. 6 is an explanatory diagram showing an execution mode of an ADPCM event synchronized with a MIDI event.

FIG. 7 is a configuration diagram in a case where a part of chorus data is universally sounded from a sound source.

FIG. 8 is an explanatory diagram of compression / expansion of phrase chorus data that cannot be sounded from a sound source.

[Explanation of symbols]

10 ... Music reproduction type karaoke apparatus, 11 ... LD changer system, 12 ... Monitor, 13 ... Mixing amplifier, 1
4 ... Microphone, 15 ... Speaker, 20 ... Karaoke control device, 21 ... Commander part, 21A ... Remote control receiver, 2
1B ... Key input interface, 21C ... Song selection / reservation controller, 21D ... Display, 21E ... Display driver, 21F ... AV input / output selector, 21G ... Control output interface, 22 ... File system unit, 22A ... File controller, 22B ... ISD
N controller, 22C ... Memory device, 23 ... Performance / display unit, 23A ... Data buffer, 23B ... Multimedia sequencer (MMS), 23C ... Sound source processor, 23D ... Video processor, 23E ... Video super imposer, 25 ... Microcomputer board , 30 ... Host station, 40 ... Communication line, 50 ... Remote control, 61 ... CPU,
62 ... RAM, 63 ... ISDN interface, 64
... MIDI interface, 65 ... Changer control, 66 ... ADPCM processor, 67 ... Pitch shifter, 68 ... Effector mixer, 69 ... Microphone effector, 70 ... Sound field generator, 71 ... Portable downloader.

Claims (1)

[Claims] 1. A musical tone synthesizing type karaoke device comprising a sound source for producing a musical composition of a performance song based on performance data, wherein a tone for a general-purpose chorus is produced from the general-purpose chorus data included in the performance data. A karaoke device characterized by the above.