JP3324657B2 - Karaoke playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an MPEG (Moving Picture Experts Group) as a high-efficiency moving picture coding system.
The present invention relates to a karaoke reproducing apparatus for reproducing a karaoke disk on which a digital video signal and a digital audio signal compressed according to a standard are recorded.

[0002]

2. Description of the Related Art In recent years, in the field of business or consumer use,
It is well known that a karaoke reproducing apparatus that sings a desired song along a melody using a microphone while reproducing a karaoke disk is frequently used.

A plurality of songs (hereinafter referred to as software) are recorded on a karaoke disk used in the karaoke reproducing apparatus in advance. The plurality of pieces of software include audio information and image information including lyrics and melodies.

Also, a plurality of karaoke disks are stored in a rack, desired software is selected from a quick reference table during karaoke performance, and a karaoke disk containing the desired software is taken out of the rack and played. .

[0005]

By the way, since a karaoke disk used in the above-described karaoke reproducing apparatus contains a still image as image information, for example,
Although it is suitable for displaying the lyrics on the monitor sequentially as the karaoke song progresses and for the convenience of the singer, the movement of the screen is poor for listeners who watch the same monitor, so that a moving image with change is required. Was.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, a digital video signal and digital
Compress the audio signal according to the MPEG standard
A plurality of karaoke sources consisting of a series of compressed data signals obtained
Karaoke that plays back karaoke discs that have
A reproducing apparatus (10) for reproducing the karaoke software;
A controller (15) for at least instructing a raw start;
Play the karaoke disk and compress the data
Compressed data signals including video signals and audio signals
Output karaoke disk playback unit (11, 12, 1)
3) modulating the compressed data signal with a first modulation scheme;
A first modulator (21) for outputting a first modulation signal,
A control signal output from the controller and indicating start of reproduction.
Signal in a second modulation scheme different from the first modulation scheme.
A second modulator for adjusting the output of the second modulated signal (23)
And transmitting the first and second modulated signals to the outside.
A first communication module (11b) for performing
A cable (16) for transmitting the first and second modulated signals
b) demodulation of the first modulated signal and demodulated compression
A first demodulator (28) for outputting a data signal;
2 and outputs a demodulated control signal.
A second demodulator (31), and via the cable
A second receiving the input first and second modulated signals;
Communication module (14b) and the demodulated compressed data
Data signal and the demodulated control signal are input,
The demodulated compressed data according to a demodulated control signal.
A data decompression unit (14) for starting signal decompression
To provide a karaoke reproducing apparatus characterized by comprising
Things .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a karaoke reproducing apparatus according to the present invention will be described below with reference to FIGS.
<Karaoke reproducing device> will be described in detail in this order.

A decoder constituting the karaoke reproducing apparatus 10 according to the present invention is a data decompression unit 14, which will be described later, and includes a control signal modulated by an FSK modulation method as a first modulation method and a bi-phase signal as a second modulation method. The compressed data signal modulated by the modulation method is supplied, and the compressed data signal that has been bi-phase demodulated is expanded according to the control signal that has been FSK demodulated. <Karaoke Disk> FIG. 5 is a diagram showing the recorded information in the karaoke disk.

A karaoke disk is a well-known CD-ROM.
It has the appearance and reproduction characteristics satisfying the disc standard. As described below, a plurality of music pieces (a plurality of music pieces) are obtained by using a series of compressed data signals obtained by compressing digital video signals and digital audio signals according to the MPEG standard. Karaoke software) is sequentially recorded for each song in sector units.

That is, in order to achieve compatibility with a CD-ROM disk, a data transfer rate (read rate) of 1.5
In order to satisfy Mb / s, the readout rate of the data-compressed digital video signal is 1.15 Mb / s, the readout rate of the data-compressed digital audio signal is 0.224 Mb / s, and both of these data-compressed digital audio signals are read out. The signal is time-division multiplexed and its read rate is set to 1.3.
By setting it to 9 Mb / s, the reading rate was kept within the range of 1.5 Mb / s.

The reason is that the upper limit frequency of the video signal is set to 4.2 MHz, and the read rate of the digital video signal which is not subjected to A / D conversion and data compression is 100 Mb.
/ S is required, and the upper limit frequency of the audio signal is set to 20 kHz, and the read rate of the digital audio signal which is not subjected to A / D conversion and data compression is 1.4M.
Since b / s is required, the read rate of a signal obtained by time-division multiplexing these two signals is 101.4 Mb / s, which greatly exceeds the read rate of 1.5 Mb / s. This is because the disk specification cannot be satisfied.

Therefore, by compressing the data, the data compression rate of the digital video signal becomes 1/87, and the data compression rate of the digital audio signal becomes 1 / 6.3.

The above-mentioned karaoke disk formed by a board making technique corresponding to a well-known CD-ROM disk mainly contains a plurality of karaoke software, and specifies a software number corresponding to the arrangement order of music pieces. It is configured so that random access reproduction can be performed by simply performing the operation.

Here, a series of data signals recorded on the karaoke disk 1 will be described.

As shown in FIG. 5, a series of data signals
A well-known TOC area 2a, a menu area 2b, and a data area 2c, which are lead-in portions of the information track 2, are sequentially recorded. Here, only the vicinity of the reproduction start head of the information track 2 is shown.

In the above-mentioned TOC area 2a, a lead-in signal for confirming that reproduction has been started by using a reproduction optical pickup (not shown) is recorded.

The above-mentioned menu area 2b stores intro information and menu information for each of a plurality of software recorded on the disc 1, and these are recorded in JIS code as character / symbol code signals.

The menu information includes bibliographic items such as a disc number of the disc 1, a software number for each music piece, a title character of each software, a singer name, and lyrics. The menu information reproduced by the karaoke reproducing apparatus 10 described later is transmitted to the printer 5 via the personal computer 30.
0 is printed on the recording paper 51 and used as a quick reference table 70 of the music (shown in FIGS. 1 and 4B, respectively). Note that this menu information is recorded in the form of a digital video signal without being coded as a character / symbol code signal in this manner, and this digital video signal is directly printed out by the printer 50 without passing through the personal computer 30. Is also possible.

However, in this case, the menu information cannot be edited and arranged for each disk number and for each software number.
The digital video signals are printed out in the order of reproduction.
Further, the disc number and software number in the menu information are coded so that they can be read by scanning the quick reference table 70 with a bar code reader 71 described later (shown in FIG. 4A).

The intro information recorded together with the above-mentioned menu information includes a melody of a singing portion of the song or a part of the lyrics of the singing portion edited for each of a plurality of songs in the form of a digital audio signal. In order to select the intro information, the intro information corresponding to each software is individually coded with a disc number and a software number, respectively, and is coded and superimposed.

It should be noted that only the menu information or the intro information may be recorded in the menu area 2b. Further, the menu information and the intro information may be recorded on either the outer peripheral portion or the inner peripheral portion of the disc. However, it is needless to say that the menu information and the intro information are recorded at a place where there is no problem during a normal karaoke performance.

The data area 2c is composed of a plurality of sectors 2c1 to 2cn and tracks 2c11, and the digital video signal of which data is compressed for the first music is sequentially recorded in the sectors 2c1 to 2c4, 2c6 and 2c7. The data-compressed 2-channel stereo digital audio signal corresponding to each of the digital video signals recorded in sectors 2c1-2c4 is sector 2
recorded in c5.

Further, in the sector 2cn, character / symbol code signals for various controls relating to the program are recorded. Furthermore, a track 2 provided as needed
In c11, sound field data relating to the music is recorded. During reproduction, the sound field data is output from an audio channel different from the audio signal recorded in the sector 2c5, and is output from sound field speakers 64, 64 described later. <Karaoke Reproducing Apparatus> FIG. 1 is a system configuration diagram of a karaoke reproducing apparatus according to the present invention, FIG. 2 is a block diagram of an embodiment of a karaoke reproducing apparatus according to the present invention, and FIG. FIG. 4 is a diagram showing a use state of the quick reference table, and FIG. 6 is a diagram for explaining transmission between the changer mechanical unit and the data decompression unit.

FIG. 1 shows a system configuration of the karaoke reproducing apparatus.
As shown in FIG. 1, a karaoke reproducing apparatus 10, a personal computer 30, a printer 50, a large color video monitor 60, a color video monitor 61 with a stand, a microphone 6
2. It consists of speakers 63,63.

The karaoke reproducing apparatus 10 described above reproduces the karaoke disks 1 stored therein in a large number (for example, 360) according to the user's selection of the tune. As described above, a large number of songs (up to 18 songs, 74
Video data of moving images, two-channel audio, and data related to the song (disc number, software number, song title, singer name, etc.) are recorded for each minute. Is reproduced and output as needed. The video signal reproduced from the karaoke reproducing apparatus 10 is outputted to the color video monitors 60 and 61, respectively, and reproduced.
The data related to the music is output to the personal computer 30, where the data is processed in accordance with the desired editing, and then printed on the recording paper 51 by the printer 50. The sound field speakers 64, 64 are connected as needed.

Here, the above-mentioned karaoke reproducing apparatus 10 will be described with reference to FIGS.

The karaoke reproducing apparatus 10 comprises a changer mechanism section 11, player sections 12 and 13, a data expansion section 14, and a controller 15. The changer mechanism section 11 includes a changer controller 11a and a communication module 11b, and the player sections 12 and 13 include player controllers 12a and 13a. The data decompression unit 14 includes a communication module 14a, a data separation unit 14
b, a controller 14c, a video signal decompression unit 14d, an audio signal decompression unit 14e, and a code signal decompression unit 14f. The controller 15 has a remote control receiver 15a. Data expansion unit 14 described above
Medium, the data expansion characteristics of the video signal expansion unit 14d and the audio signal expansion unit 14e are
It has characteristics complementary to data compression characteristics when digital video signals and digital audio signals are data-compressed according to the G standard.

Next, the reproducing operation of the karaoke reproducing apparatus 10 will be described.

First, the user selects a desired song (software number) by operating an operation button (not shown) of the controller 15 or the remote control unit 17 described above.

In response, the controller 15 temporarily stores the selected software number and displays the selected software number on a display (not shown). In parallel with this operation, based on the built-in software number versus disk number comparison data, a search is made for the disk number of the disk on which the program of the selected software number is recorded, and in response to the search result, Based on the built-in disk number vs. disk storage part address number comparison data, a search is made to find which part of the disk storage rack (not shown) stores the disk of the disk number. On the basis of the search data thus obtained, a drive control signal for removing the disk stored in the storage part with the address number is output from the output terminal 15b to the input terminal 11a1 of the changer mechanism 11. .

The changer controller 11a of the changer mechanism section 11 drives and controls a disk carrier (not shown) as follows based on the applied drive control signal. That is, the disk carrier is changed from the standby state to the driving state, and is first moved at a high speed toward the storage part where the disk is stored, moved at a low speed when approaching the storage part, and stopped when reaching the position of the storage part. You. After this,
When the disk stored in the storage portion is taken out and mounted on the mounting portion of the disk carrier, the disk carrier changes from the stopped state to the driving state, and the player unit 1
The disk is transported at high speed in the direction of 2. Thus, the disc is placed on the turntable (not shown) of the player unit 12. Thereafter, the disk carrier enters the standby state again.

Prior to the above case, the controller 15
Recognizes that a disc is not loaded on any of the player sections 12 and 13, and in that case, recognizes that the player section 1
Needless to say, a control signal for loading the discs in the order of 2, 13 is output to the changer controller 11a of the changer mechanism section 11.

Thereafter, when the operation button (not shown) of the controller 15 or the remote control unit 17 is operated again to newly select a music piece, a disk containing the selected music piece is recorded in the same manner as described above. Can be placed on a turntable (not shown) of the player unit 13.

The player controller 12a of the player section 12 (or the player controller 13a of the player section 13) sends a rotation control signal for rotating the turntable on which the disc is mounted at a constant linear velocity to a motor (not shown). Output to

As a result, the motor changes from the stopped state to the constant speed rotation state, and rotates the turntable at a constant speed. And
In this state, a reproduction data signal is output by reproducing and scanning the disk with an optical pickup (not shown).

Thus, a series of data signals (character / symbol code signal, video signal, audio signal) having the above-described configuration are reproduced, and the line 16a1 (or the line 16a) is reproduced.
a2) from the player unit 12 (or the player unit 13) to the communication module 11 of the changer mechanism unit 11
b, where the data is converted into a predetermined communication format, and then transmitted through the coaxial cable 16b.
4 communication module 14a.

The digital data signal supplied to the data decompression unit 14 is output to a data separation unit 14b via a line 16c. In addition, separately from the above, the changer mechanical unit 11 (changer controller 11a)
And a control signal (for example, a reproduction start signal) which is sequentially supplied according to the various operations selected by the controller 15 via the communication module 11b) is supplied to the communication module 11b of the changer mechanism unit 11, Here, after being modulated by an FSK (frequency shift keying) modulation circuit 23, the communication module 14a of the data expansion unit 14 is transmitted through the coaxial cable 16b together with the above-described series of data signals (readout rate 1.5 Mb / s). And supplied to the controller 14c via the line 16d.

The controller 14c controls all the components inside the data decompression unit 14, and is controlled by a line 16d.
And outputs a control signal to start the separation of the digital data signal to the data separation unit 14b based on the control signal provided through

In response, the data separation unit 14b converts a series of digital data signals supplied from the bus line 16c into a data-compressed character / symbol code signal, a data-compressed video signal, and a data-compressed audio signal. And output separately. Here, as a method of separating the data signal, a signal obtained by time-division multiplexing of the three signals described above is recorded on the disk 1 as a series of data signals, and a specific signal is determined by the time-division timing. Is to be separated.

Of the separated signals, the data-compressed video signal is sent to the video signal expansion unit 14d, and the data-compressed audio signal is sent to the audio signal expansion unit 1d.
4e, and the data-compressed character / symbol code signal is supplied to the code signal decompression unit 14f via the bus line 16e. At the same time, the controller 14c sends a decompression start signal to the effect that data decompression is performed on line 1.
6f, 16g, 16h, the video signal decompression unit 14
d, audio signal decompression unit 14e, code signal decompression unit 1
4f.

The video signal decompression unit 14d decompresses the data-compressed video signal supplied thereto,
The composite video signal and the Y / C separated video signal are subjected to D / A conversion and output simultaneously. The Y / C video signal is output from a video output terminal (so-called S terminal) 14d11, and the three-channel composite video signal is output from video output terminals 14d12 to 14d14. By selectively connecting the color video monitors 60 and 61 to the video output terminals 14d11 to 14d14, video images of moving images can be reproduced.

The audio signal expanding section 14e expands the data of the data-compressed audio signal supplied thereto, and then performs D / A conversion to output a 2-channel audio signal. This audio signal is for L and R channels.
The audio is output from the audio output terminals 14e11 and 14e12. These audio output terminals 14e11, 14e
By connecting the above-mentioned speakers 63 to 63, 2-channel stereo sound can be reproduced.

The code signal expanding section 14f outputs a character / symbol code signal obtained by expanding the data of the supplied character / symbol code signal. This character / symbol code signal is output to the quick reference table data output terminal 14f.
1. Separately output from the music title display dedicated data output terminal 14f2. By connecting the above-described personal computer 30 to the quick-reference table data output terminal 14f1 via the interface 18, the printer 50 can be operated to print out the quick-reference table (shown in FIG. 4) on the recording paper 51. Becomes Also, by connecting a display (not shown) to the data output terminal 14f2 dedicated to song title display, song titles can be displayed.

As described above, when all data decompression operations in the data decompression unit 14 having the above configuration are completed, the controller 14c sends an end signal indicating that the data decompression operation is completed to the communication modules 14a and 11b and the changer controller 11a. The output is sent to the controller 15 via the above.

Thus, the karaoke reproduction of the selected one tune ends.

Here, the personal computer 30 and the printer 50 will be described.

The personal computer 30 has a storage function and an organizing function (editing function), and includes a storage section, a key operation section, an organizing section, a display section, and a code converting section.

That is, the menu information in the code signal expanded by the code signal expansion section 14f is stored in the storage section in the form of a character / symbol code signal. This storage unit has a capacity capable of storing menu information in a plurality of disks. Here, the key operation unit is operated to arrange a large amount of menu information stored in the storage unit into a predetermined format by the organizing unit. That is, the predetermined format is a pattern to be printed out on the quick reference table 70 shown in FIG. As the method of organizing by the organizing section, various organizing methods are possible such as, for example, organizing the titles of the menu information in the order of "aiueo" so that they can be printed out, or by each singer name. Further, the disc number in the menu information can be replaced according to the storage number of a rack (not shown). The data being organized can be organized while looking at the display. The menu information arranged and coded in a predetermined format is converted into regular characters / symbols by a character / symbol conversion unit, and then printed by the printer 50 to create a quick reference table 70.
Thereby, for example, the menu information of the karaoke disk containing the latest software can be immediately printed as a quick reference table 70 after being arranged in a predetermined format, so that the user does not lose bookbinding time, and It becomes very convenient.

As described above, if the barcode reader 71 (shown in FIG. 4A) is recorded as menu information so that it can be used, the desired software of the desired software can be obtained from the quick reference table 70 on which the barcode is printed. The menu can be selected without key-in operation, and the selected menu can be registered in the karaoke reproducing apparatus 10 by operating the remote control as it is, which is very convenient.

When the menu information is recorded as a video signal without coding as described above,
The quick reference table 70 can also be created from the printer 50 by specifying the track number of the disk and storing it in a frame memory (not shown). However, in this case, it is impossible to arrange the menu information.

Next, transmission between the changer mechanism section 11 and the data expansion section 14 will be described.

First, transmission of a data signal and a control signal supplied from the changer mechanism unit 11 to the data decompression unit 14 will be described. As mentioned above, line 16a
A series of data signals selectively supplied from the player units 12 and 13 through the communication module 11b via the communication module 11b
Changer controller 11a which is applied to the contacts 20a and 20b of the switch 20 inside the switch 20 and then applied to a switching control terminal (not shown) of the switch 20 via a line 16a4.
After passing through a contact 20c, the signal is supplied to a bi-phase modulator 21, where it is bi-phase modulated, and output on a line 16b by a pulse transformer 22. The upper limit of the modulation frequency band of the bi-phase modulated data signal is 6 MHz.

As described above, the controller 15
The control signals supplied one after the other in accordance with the various operations selected in step 1 are the changer controller 11a and the line 16a3.
Are supplied to the FSK modulator 23 in the communication module 11b through the respective components, and after being subjected to FSK modulation (FSK modulation frequency 8 MHz), are outputted on the line 16 via the pulse transformer 22. FSK modulator 23 described above
, A cascade-connected high-pass filter 24 and FSK demodulator 25 are connected in parallel.

A series of bi-phase modulated data signals from the communication module 11b are supplied to a pulse transformer 26 in the communication module 14a via a line 16b, and then to a low-pass filter 27 having a cutoff frequency of 6 MHz. Here, after the FSK-modulated control signal is cut, it is supplied to a bi-phase demodulator 28,
Here, bi-phase demodulation is performed. Thus, a series of data signals selectively supplied from the player sections 12 and 13 can be supplied to the data separation section 14b. Also, FSK modulated control signal output from the communication module 11b after passing through the line 16b, is supplied to the high-pass filter 2 9 cutoff frequency 8MHz through the pulse transformer 26 in the communication module 14a, wherein biphase After a series of data signals are cut, the FSK demodulator
30 where it is FSK demodulated. Thus,
Control signals that are successively supplied according to various operations selected by the controller 15 can be supplied to the controller 14c.

Next, transmission of control signals supplied from the data decompression unit 14 to the changer mechanism unit 11 and the controller 15 will be described.

As described above, the control signal such as the data decompression operation end signal output from the controller 14c is supplied to the FSK modulator 31 in the communication module 14a via the line 16d, where the FSK modulation (FSK modulation) is performed. After the frequency is changed to 9 MHz, the signal is output on the line 16b through the pulse transformer 26 and supplied to the communication module 11b. Then, the FSK-modulated control signal is supplied to a high-pass filter 24 having a cut-off frequency of 9 MHz via a pulse transformer 22. After unnecessary low-frequency components are cut, the control signal is supplied to an FSK demodulator 25.
Demodulated. Thus, the control signal from the data decompression unit 14 can be supplied to the controller 15 via the changer controller 11a, and the control signal such as the data decompression operation end signal.

As described above, a series of data signals selectively supplied from the player sections 12 and 13 and control signals supplied in accordance with various operations selected by the controller 15 are transmitted from the changer mechanism section 11 to the data expansion section 14. And the control signal supplied from the data decompression unit 14 to the controller 15 is the data decompression unit 1
4 to the changer mechanism 11.

The above-mentioned FSK modulation is a half-duplex system (FSK modulation).
Modulation frequency 8MHz, 9MHz), but FS
Of course, the K modulation frequency may be the same,
For example, when the FSK modulation frequency is 8 MHz (9 MHz),
The cutoff frequencies of the high-pass filters 24 and 29 are both 8 MHz (9 MHz), and simultaneous transmission and reception (full-duplex communication) is possible by selecting the FSK modulation frequencies so as not to overlap.

[0059]

Karaoke reproducing apparatus according to the present invention, the color
A control that instructs at least the start of playing the orchestral software
Player and karaoke disc, and
Compressed data signal containing compressed video and audio signals
Karaoke disk playback unit that outputs the signal and compressed data
Modulates a signal with a first modulation method and outputs a first modulated signal
Modulator to be reproduced and reproduction output from the controller
The control signal indicating the start is changed to a second signal different from the first modulation method.
A second modulation unit that modulates the signal by a modulation method and outputs a second modulation signal;
And a modulator for transmitting the first and second modulated signals to the outside
A first communication module for performing
A cable for transmitting the modulation signal and a first modulation signal.
A first demodulator for demodulating and outputting a demodulated compressed data signal
Modulator and a control signal demodulated by demodulating the second modulated signal
And a second demodulator for outputting the
Second communication receiving first and second modulated signals applied
Module and demodulated compressed data signal and demodulated
Control signal is input, and is restored according to the demodulated control signal.
Data decompression unit that starts decompression of the modulated compressed data signal
Since it is configured provided with the door, the control signal and a very stable compressed data signals can by supplied to the decoder, Ru can very stably reproduce the video images of the moving image with the karaoke sound.
Therefore , there is an effect that a high-performance karaoke reproducing apparatus capable of performing karaoke while watching a variety of video images can be provided.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a karaoke reproducing apparatus according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a karaoke reproducing apparatus according to the present invention.

FIG. 3 is a system configuration diagram of a main part of a karaoke reproducing apparatus according to the present invention.

FIG. 4 is a diagram illustrating a use state of a quick reference table.

FIG. 5 is a diagram showing recorded information in a karaoke disk.

FIG. 6 is a diagram illustrating transmission between a changer mechanism unit and a data decompression unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Karaoke disk 10 Karaoke reproducing device 14 Data expansion unit (decoder) 14b Data separation unit 14c Controller 14d Video signal expansion unit 14e Audio signal expansion unit 14f Code signal expansion unit 21 Bi-phase modulator 23,31 FSK modulator 25,30 FSK demodulator 28 Bi-phase demodulator

Claims (1)

(57) [Claims] 1. A karaoke reproducing apparatus for reproducing a karaoke disk on which a plurality of karaoke softwares each comprising a series of compressed data signals obtained by compressing a digital video signal and a digital audio signal according to the MPEG standard, At least instructing the start of the reproduction of the karaoke software
The controller and the karaoke disk are played and the data is compressed.
Compressed data signals including video signals and audio signals
A karaoke disk reproducing unit to be output; and a first modulation system for modulating the compressed data signal by a first modulation method.
A first modulator for outputting a modulation signal, and the controller
The control signal indicating the start of reproduction is output from the first
Modulation using a second modulation method different from the modulation method
A second modulator for outputting a signal, wherein the first and second modulators
Communication module for transmitting the second modulated signal to the outside
And a cable for transmitting the first and second modulated signals
And a compressed data signal demodulated by demodulating the first modulated signal.
A first demodulator for outputting a signal, and a second demodulator for demodulating the second modulated signal.
And a second demodulator that outputs a modulated and demodulated control signal.
The first and the second input through the cable
A second communication module for receiving the second modulated signal, the demodulated compressed data signal and the demodulated control signal.
Signal is input, and the signal is input in accordance with the demodulated control signal.
Data decompression to start decompression of demodulated compressed data signal
Karaoke reproducing apparatus characterized by being configured by a part.