JPH0546071A - Recorded information reproducing device - Google Patents

Abstract

PURPOSE:To provide a recorded information reproducing device which enables repetitive practice to be performed with KARAOKE (orchestration without lyrics), etc., in synchronism with the progress of music as to a recording informa tion reproduction device which is suitable for a KARAOKE device, etc., for reproducing voice information recorded on an information recording medium such as a CD(Compact disk) and an LVD(Laser Video Disk) on the MIDI(Musical Instrument Digital Interface) standard. CONSTITUTION:The recorded information reproducing device 100 which reproduces music from the information recording medium M where encoded music information AI and control information CI recorded on the MIDI standard is equipped with a music information reproducing means 101 which decodes the music information and outputs the reproduced music signal SA, a control information reproducing means 102 which decodes the control information CI and outputs a clock signal Sc for timing control, and a control means 103 which controls the reproduction order of the music information of the music information reproducing means 101 according to the clock signal Sc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recorded information reproducing apparatus, and more particularly, to a CD (Compact Disk) and an LVD (La
Seriously, MIDI (Musica
The present invention relates to a recorded information reproducing device suitable for a karaoke device or the like that reproduces audio information recorded according to the Instrument Digital Interface) standard.

[0002]

2. Description of the Related Art Conventionally, as a so-called karaoke device, C
Those using D and LVD are known.

FIG. 15 is a diagram showing the structure of a device called an LVD karaoke performance device. As shown in FIG. 15, this LVD karaoke playing device K ₁ includes an LVD autochanger PL ₁ for storing and reproducing a plurality of laser video disks D ₁ which are karaoke information recording media, and this LV.
D LVD autochanger by controlling the autochanger PL ₁ request input from the operation unit CB ₁ PL
A commander CM ₁ to select a laser video disc D ₁ of the within _1, amplifier AM ₁ and the speaker SP ₁ for outputting the reproduced audio signal as an acoustic, SP ₂
And an image display device GD ₁ that displays the reproduced image signal as an image, and a microphone MC ₁ that converts the sung voice into an audio signal and outputs the audio signal to the amplifier AM ₁ . Amplifier AM ₁ So-called karaoke music L
Audio signal from VD autochanger PL ₁ ,
The audio signal of the singing voice from the microphone MC ₁ is mixed and output to the speakers SP ₁ and SP ₂ . Note that the commander CM ₁ may include the normal operation unit CB ₁ .

FIG. 16 shows a CD karaoke playing device K ₂
Shows the configuration of the device called. As shown in FIG. 16, the CD karaoke playing device K ₂ controls and operates a CD autochanger PL ₂ that stores and reproduces a plurality of compact discs D ₂ that are karaoke information recording media, and the CD autochanger PL _2. A commander CM ₂ for selecting the compact disc D ₂ in the CD autochanger PL ₂ according to a request input from the section CB ₂ .
An amplifier AM ₂ and speakers SP ₃ and SP ₄ for outputting the reproduced audio signal as sound, a graphic decoder DE for converting the reproduced graphic data from the subcode data in the compact disc D ₂ into an image signal, An image display device GD ₂ that displays this image signal as an image, a microphone MC ₂ that converts the sung voice into an audio signal and outputs the audio signal to an amplifier AM ₂ .
Is equipped with. The amplifier AM ₂ mixes the audio signal from the CD autochanger PL ₂ which is so-called karaoke music and the audio signal of the singing voice from the microphone MC ₂ and outputs them to the speakers SP ₃ and SP ₄ . The commander CM ₂ may include the normal operation unit CB ₂ and the graphic decoder DE.

With this configuration, it is possible to sing a song with karaoke music as accompaniment music, and
Images can be viewed at the same time.

[0006]

However, when trying to repeat the lyrics with these conventional karaoke playing devices,
In the case of the LVD karaoke playing device, only the repetition for each chapter was possible, and the position of the beginning of singing the lyrics did not always coincide. Also, in the case of a CD karaoke playing device, it is possible to repeat at any position, but for example, in accordance with the tempo of the song, the karaoke performance and the singing voice are heard together for 4 bars, and then the same part is played only karaoke performance. I couldn't do repetitive practice, such as practicing songs.

Therefore, an object of the present invention is to provide a recorded information reproducing apparatus capable of repetitive practice synchronized with the progress of music in karaoke or the like.

[0008]

In order to solve the above-mentioned problems, according to the present invention, encoded music information AI and control information CI are MIDI as shown in the principle explanatory diagram of FIG.
A recording information reproducing apparatus 100 for reproducing music from an information recording medium M recorded according to a standard, which is music information reproducing means 1 for decoding music information and outputting a reproduced music signal S _A.
01 and control information reproducing means 102 for decoding the control information CI and outputting the clock signal S _C for timing control.
And the music information reproducing means 10 based on the clock signal S _C.
1 for controlling the reproduction order of the music information
3 is provided.

[0009]

According to the present invention having the above structure, by utilizing the clock signal for timing control of the MIDI standard sub-code information, the repetitive performance or the like is performed at the correct position of the lyrics regardless of the tempo of the music. This makes it easy to practice karaoke.

[0010]

[ First Embodiment ] First embodiment of the present invention MIDI standard, MIDI sound source, MIDI karaoke pho
Matte Prior to describing the embodiments of the present invention, the MIDI standard, MIDI sound source, and MIDI karaoke format used in the present invention will be described with reference to FIGS. 3 to 13.

MIDI (Musical Instrument Digital I)
nterface) is a standard established to enable information exchange by connecting musical instruments such as synthesizers and electronic pianos.

An electronic musical instrument having the hardware according to the MIDI standard and having a function of transmitting and receiving a MIDI control signal which is a musical instrument performance control signal of a format defined to carry music information is called a MIDI device.

CD (compact disc), CD-V
(Video), LV including CD format digital audio
Subcodes are recorded on disks such as D (laser video disk) and tapes such as DAT. The subcode consists of P, Q, R, S, T, U, V and W channels, of which the P and Q channels are used for the purpose of controlling and displaying the disc player.

On the other hand, the R to W channels are empty channels called user's bits, and various applications such as graphics, voice, and images have been studied, and a standard for a graphics format has already been proposed.

A MIDI format signal can be recorded in this user's bit, and a standard has already been proposed. In this case, the audio / video signal reproduced by the disc player is supplied to the AV system to watch the program recorded on the disc.
Since it is possible to provide performance program information to MIDI equipment that is installed side by side with the V system or more, it is possible to construct a realistic AV system including electronic musical instruments, and to apply it to the creation of educational software. Various studies have been made.

The MIDI device plays a musical instrument according to a musical instrument playing program formed by a MIDI signal obtained by converting a MIDI format signal sequentially supplied from a disc player into a serial signal.

First, MIDI supplied to MIDI equipment
The control signal is serial data having a transfer rate of 31.25 [Kbaud], and a total of 10 bits including 8-bit data and 1-bit start bit and 1-bit stop bit constitutes 1-byte data.

Further, at least one status byte for designating the type of data to be sent and the MIDI channel and one or two data bytes guided by the status are combined to form a message as music information. Therefore, one message is composed of 1 to 3 bytes, and its transfer requires a transfer time of 320 to 960 [μsec]. A musical instrument playing program is formed by a series of messages.

As an example of such a message, the structure of a note-on message, which is one of channel voice messages, is shown in FIG. The note-on message of the status byte is, for example, a command corresponding to the operation of pressing the keyboard of the keyboard, and is used as a pair with the note-off message of the operation of releasing the keyboard of the keyboard. This is shown in FIG. Data byte 1
The note number of "1" designates one of 128 steps assigned to the keyboard centering on the "center C" of the 88-key piano. The velocity of the data byte 2 is generally used to make a difference in the strength of the sound. Note·
The MIDI device receiving the ON message generates a sound of a specified scale with a specified intensity. Also note
Upon receiving the OFF message, the MIDI device operates, for example, by releasing the keyboard of the keyboard.

Another message is a system real-time message. System real-time messages are used to synchronize MIDI devices. Within this system real-time message is the timing clock. MIDI-connected systems send this message at a rate of 24 per quarter note (F8h, h: hexa-decimal digit (16
It can be synchronized by the decimal digit)). The data transmitting side may continue to transmit the timing clock (F8h) according to its own tempo information even when not playing. MIDI sync mode (MIDI
The data receiving side set to the IN timing clock synchronization mode) can synchronize with the external clock while waiting for the start (FAh) or the continue (FBh) to be sent.

Therefore, from the above, instead of the electronic musical instrument, as shown in FIG.
By using the amplifier AM and the speaker SP, it is possible to generate an arbitrary musical sound by the MIDI control signal S _MIDI .

The MIDI karaoke file format used in the present invention will be described below with reference to FIGS. 6 to 13. FIG. 6 shows a data structure of a MIDI karaoke file stored in an optical disc which is an information recording medium.

The MIDI karaoke file format KF is a sequence file SF and a quick reference file I.
Broadly divided into F. The sequence file SF is a file required for karaoke performance, and has a note file NF, a lyrics file LF, and a PCM file PF.

The note file NF is a file in which actual performance data is stored, and as shown in FIG.
Includes _{1 to} NF ₁₇ data areas. Of these, the tone color track NF ₃ stores data for setting a plurality of tone colors of the MIDI sound source. Conductor track N
F ₅ stores data for setting rhythm and tempo. Tempo changes etc. are stored in this data area. The rhythm pattern track NF ₇ stores rhythm-related pattern data in units of one bar. NF ₈ ~ N
F ₁₅ is called a note track, and up to 16 tracks can be used to store data for MIDI sound source performance. Track 1NF ₉ is a melody-only track. The track 16NF ₁₅ is a rhythm-only track. The track numbers a to n are 2 to 15. Further, the control tracks NF ₁₆ and NF ₁₇ store various control commands such as lighting control and LVD player control.

FIG. 8 shows the data structure of the track header section NF ₁₆ and the control command track NF ₁₇ . The track header portion NF ₁₆ is composed of only track length data. Track length data is status byte NF ₆₁
And a data byte NF ₆₂ , and a status byte NF
₆₁ is FFh (h: hexa-decimal digit (hexadecimal digit))
And the data byte NF ₆₂ is 00h, 00h, 00.
It contains 4 bytes of h and 00h. Also, various control commands are control command data NF.
Stored in ₇₁ . The control commands include, for example, commands for lighting effect, image effect, laser video control, and effector control. In the case of lighting effect control, each data specification includes a status byte F1h and a data byte. Status byte F2h and data byte for video effect control, status byte F4 for laser video control
Includes h and data bytes respectively. This laser video control command corresponds to image control information. This laser video control command is, for example, F3h,
It is configured like AAh, BBh, CCh, .... Where AAh is the disc number, BBh is the playback surface (A surface, B
Ch) indicates a chapter number or a screen number. In the track end data NF ₇₂ , the status byte is FEh and the data byte is FEh.

The lyrics file LF is a file for storing the lyrics telop data displayed on the monitor TV, and includes the data areas LF ₁ to LF ₁₃ , as shown in FIG. Of these, the data of the lyrics itself is stored in LF ₃ and LF ₇ . Also, LF ₄ and LF ₈
Stores the data about when the lyrics are displayed and at what speed the color is changed (scrolled).

A more detailed structure of the lyrics file LF is shown in FIG. FIG. 10 shows an example of LF ₂ to LF ₅ . The track header portion LF ₂ is a data area that stores data that specifies the track length, the initial value of the lyrics telop display color, and the initial value of the lyrics telop scroll color, and includes LF _{21 to} LF ₂₆ . However, the data of the lyrics telop display color and the lyrics telop scroll color may be omitted. In this case, the control unit
It is set to a predetermined initial value (default value).

The track length status LF ₂₁ is 1 byte (FFh, h: hexadecimal digit (hexadecimal digit)), and the track length data LF ₂₂ is 4 bytes as shown in FIG. 10 (B). The data of LF ₂₂ is stored from the upper byte (MSB) of the track length from the first byte.

The lyrics display color status LF ₂₃ is 1 byte (A0h), and the lyrics display color data LF ₂₄ is shown in FIG.
It is 3 bytes as shown in (C). The display color of the lyrics telop is designated by B (blue), R (red), and G (green). Of the data bytes, the first byte is B (blue), the second byte is R (red), the third byte is G (green), and is specified in the range of 00h to 0Fh.

The scroll color status LF ₂₅ is 1 byte (B0h), and the scroll color data LF ₂₆ is 3 bytes. The data byte specifications are the same as for the lyrics display color.

An example of the color code of B, R and G is shown in FIG.
Shown in 1. The lyrics data is stored in JIS code. The status of the lyrics data LF ₃ is C0h, and the lyrics data following the status C0h is displayed on one screen. Further, the lyric data string following the status C0h is assigned lyric string numbers starting from 1 from the beginning.
The data end status and data are E0h.

The data of the timing map LF ₄ includes lyrics telop display timing, lyrics telop erasing timing, lyrics display color, scroll color, scroll map data, map end.

The status of the lyrics telop display timing is DFh, and the data is [Display Timing] and [Ly
rics Number] and 3 bytes. (Display Timin
The lyrics of [Lyrics Number] are displayed at the timing of [g]. The display timing is such that the first byte of data is the upper byte of the timing and the second byte is the lower byte of the timing.

The status 2 of the lyrics telop erasing timing is D0h, and the data is 2 bytes in [Off Timing]. The first byte of data is the upper byte of timing and the second byte is the lower byte of timing.

The status of the lyrics display color is A0h,
The data is [Display Color] and is 3 bytes. The data format is the same as that of the lyrics display color in the track header. However, it must be after the lyrics telop display timing in the timing map.

The status of the scroll color is B0h, and the data is [Scroll Color] of 3 bytes. The data format is the same as the scroll color format in the track header. It must precede the scroll map data in the timing map.

The status of the scroll map data is C
0h, the data is [Scroll Speed] and [Lyrics Cou
nt] and 2 bytes. For each character, [Scroll Spe
At the speed of the note of [ed], scroll the number of characters of [Lyrics Count].

The map end status is E0h and the data is E0h. The status of the track end is FEh and the data is FEh. Also,
LF _{6 to} LF ₁₃ can store lyrics and parody in two or more languages. However, it is not stored when not in use.

The PCM file PF is a file in which data such as sound effects and back chorus that cannot be produced by a MIDI sound source is stored. As shown in FIG. 12, PF ₁ to PF ₆
It contains the data area of. Data storage methods include PCM (Pulse Code Modulation) and ADPCM (Adap
Various types such as tive Differential Pluse Code Modulation) can be adopted.

The quick reference file IF is a search file for making a request, and as shown in FIG.
Includes F ₁ and IF ₂ . The information file IF ₁ includes a song name, singer name, lyricist name, composer name, song genre, search lyrics, LVD screen establishment data, and the like. The intro sequence track IF ₂ stores sequence data for causing the MIDI sound source to play a section of a music piece.

Next, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 2 shows a CDV player which is an embodiment of the recorded information reproducing apparatus of the present invention. As shown in FIG. 2, the CDV player 100A is roughly divided into an information reading system 200, an audio reproducing system 300, a video reproducing system 400, and a control system 500. The information reading system 200 includes a spindle motor 11 that rotationally drives a CDV disc DK that is an information recording medium, and a CDV disc D.
A pickup 12 that reads information from K, a servo mechanism 13 that drives this pickup, and an APC (Automatic
Power control circuit 14 and servo section 1. The servo unit 1 also includes a tracking / focus / carriage servo circuit 15 for servo-controlling the pickup 12 and the servomechanism 13, and a spindle motor 11.
It includes a spindle servo circuit 16 that servo-controls.

The audio reproduction system 300 has a preamplifier section 2, a decoder section 3 and a DA converter section 4. The preamplifier unit 2 includes an RF system amplifier 21 and an error generation circuit 22. The decoder unit 3 includes a subcode decoding circuit 23, an audio data decoding circuit 24, a control data decoding circuit 25, and a spindle servo error generating circuit 26. DA
The converter unit 4 includes a DA converter 27 and an LPF / audio amplifier 20. The control system 500 has a system controller section 31 and a display / operation section 32.

The video reproducing system 400 is an EFM (Eight to
Fourteen Modulation) extraction unit 41, RF system amplifier 42, spindle servo error generation circuit 43, video demodulation unit 44, time axis correction servo unit 45, time axis correction unit 46, and blueback character generator 4
7 and a video signal processing unit 48.

Next, the operation of the CDV player 100A will be described. First, the CDV is driven by the spindle motor 11.
The disk DK is rotationally driven, and the recording information is read by the pickup 12 by the laser beam B and converted into an electric signal. The movement of the pickup is controlled by the servo mechanism 13 under the control of the servo unit 1. In addition, a semiconductor laser is generally used as a light source for reading information recorded on a disc, but the optical output changes with the same current due to temperature fluctuations, and the signal obtained from the disk changes with temperature fluctuations. There is a case. In addition, the light output also changes with time. The APC circuit 14 is a circuit that functions to keep the optical output of the semiconductor laser constant against changes over time and temperature changes.

The disc information signal read by the pickup 12 is sent to the RF system amplifier 21 and the error generation circuit 22, and then sent to the audio data decoding circuit 24 and the spindle servo error generation circuit 26. The audio signal is decoded by the audio data decoding circuit 24 and sent to the subcode decoding circuit 23, the control data decoding circuit 25, and the DA converter 27. The DA converter 27 converts the decoded digital signal into an analog signal and sends it to the LPF / audio amplifier 28. In the LPF / audio amplifier 28, first, the band is adjusted by a low pass filter (LPF) and the output level is adjusted, and the audio output is output to the outside. By connecting an external amplifier or an external speaker (not shown) here, it can be output as sound or voice.

On the other hand, from the signal sent to the error generating circuit 22, the error generating circuit 22 generates a tracking error signal, a focus error signal, and a carriage error signal which are the basis of servo control, and performs tracking / focus / focusing.
It is sent to the carriage servo circuit 15. The tracking / focus / carriage servo circuit 15 generates a signal for driving the pickup 12 or the servo mechanism 13 based on these error signals, and outputs the signal to the pickup 12 or the servo mechanism 13. Further, the spindle servo error generation circuit 26 generates an error signal for spindle servo control from the signal sent from the RF system amplifier 21 to the spindle servo error generation circuit 26, and outputs it to the spindle servo circuit 16. The spindle servo circuit 16 generates a signal for driving the spindle motor 11 based on this error signal and outputs the signal to the spindle motor 11.

Further, the audio data decoding circuit 24
From the signal sent from the sub code decoding circuit 23 from
The subcode decoding circuit 23 decodes and extracts the subcode signal and sends it to the blueback character generator 47. Characters, symbols, and
An image signal for superimposing on the screen such as a figure is included. The blue-back character generator 47 extracts these character signals and outputs them to the video signal processing unit 48.

On the other hand, the output of the pickup 12 is EF.
It is also sent to the M extractor 41 and the RF amplifier 42.
The EFM extracting unit 41 demodulates this signal by EFM and R
It is returned to the output side of the F system amplifier 21. The signal whose level has been adjusted by the RF amplifier 42 is sent to the video demodulation unit 44, the video signal is demodulated and sent to the spindle servo error generation circuit 43 and the time axis correction unit 46. The spindle servo error generation circuit 43 outputs this signal to the spindle servo circuit 16 to perform spindle servo control. The video signal sent to the time axis correction unit 46 is subjected to time axis servo by the time axis correction servo unit 45 and the time axis correction unit 46, and then output to the video signal processing unit 48. A character signal for superimposing is sent from the blue-back character generator 47 to the video signal processing unit 48, and this character signal is superimposed on the video signal and output to the outside as a video output.

On the other hand, the display / operation unit 32 can operate the CDV player 100A from the outside, and the input operation command is sent to the system controller unit 31. Based on this input command, the system controller section 31 outputs a control signal to the control data decoding circuit 25, the tracking / focus / carriage servo circuit 15, the spindle servo circuit 16, the video demodulation section 44, and the blue back / character generator 47,
Control these. Control data decoding circuit 2
Conversely, 5 decodes control data from the decode signal sent from the audio data decoding circuit 24 and sends it to the system controller section 31. The tracking / focus / carriage servo circuit 15 and the spindle servo circuit 16 also send servo information to the system controller section 31.

The operation such as repetitive performance, which is a feature of this embodiment, will be described below with reference to FIGS. 2 and 14. In FIG. 2, the control data decoding circuit 25 extracts a timing clock signal (F8h) which is time information from the decoded audio reproduction signal. In this timing clock signal, 24 pieces make up one quarter note time. For example, in the case of a quarter quarter beat, 16 quarter notes make up four bars. By utilizing this, when one phrase and 4 bar, as shown in FIG. 14, first, the voice of singer is recorded in four bars MT ₁ to MT ₄ of the main track MT is played. In this case, in the sub-track ST, the karaoke accompaniment is silent for ₄ bars ST _{1 to} ST ₄ .

Then, the timing clock signal is set to 38
When four (24 × 16) are counted, the subsequent four measures are controlled so that MT ₅ to MT ₈ of the main track are silent and ST ₅ to ST ₈ of the sub track are accompanied by karaoke. By doing this, the first
In the four measures from the fourth measure to the fourth measure, it is possible to listen to the singer's song and practice karaoke in the next four measures. In this case, the control method is not limited to switching between the main track and the sub-track, but it is also possible to switch the type of MIDI musical instrument by switching the channel of the sub-code to change the tone color and the like. Further, it is also possible to use a repeat operation of driving the pickup 12 to repeatedly play the same lyrics portion, or a pause (pause). Also,
The lyrics telop can be displayed along with the music playback.

Here, the audio data corresponds to music information, and the control data corresponds to control information. The information reading system 200, the preamplifier section 2 and the audio data decoding circuit 24 of the audio reproducing system 300 constitute a music information reproducing means. In addition, the information reading system 20
0 and the preamplifier unit 2 of the audio reproduction system 300
The audio data decoding circuit 24 and the control data decoding circuit 25 constitute control information reproducing means. The control system 500 corresponds to a control means.

Although an example of a CDV player has been described in the above embodiment, it may be an LVD player. At present, it is general that FM-modulated video information and audio information are recorded in the LVD, but in the future, the audio part may be digitized to record a subcode signal or a control signal. Because it is planned. It can also be applied to an OMD (Optical Memory Disk).

[0054]

As described above, according to the present invention,
In karaoke etc., if you use a vocal recording disc for the main track and a karaoke recording disc for the subtrack,
It has the advantage that repetitive practice can be performed in synchronization with the progress of music in a specific part. Further, similarly, there is an advantage that repetitive practice such as practicing in karaoke after listening to music with vocals in a specific part can be easily realized.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 3 is a diagram showing a structure of a note-on-message in MIDI.

FIG. 4 is a diagram showing a note-on message and a note-off message.

FIG. 5 is a diagram showing a configuration example of a musical sound generating device by MIDI.

FIG. 6 is a diagram showing a configuration of a MIDI karaoke format used in the present invention.

FIG. 7 is a diagram showing a structure of a note file in FIG.

8 is a diagram showing a detailed configuration of a note file in FIG.

9 is a diagram showing a structure of a lyrics file in FIG.

FIG. 10 is a diagram showing a detailed configuration of a lyrics file in FIG. 9.

11 is a diagram showing an example of a color code in FIG.

12 is a diagram showing the structure of a PCM file in FIG.

FIG. 13 is a diagram showing the structure of a quick reference file in FIG.

FIG. 14 is a diagram showing an operation of one embodiment of the present invention.

FIG. 15 is a diagram showing a configuration example of a conventional LVD karaoke device.

FIG. 16 is a diagram showing a configuration example of a conventional CD karaoke device.

[Explanation of symbols]

1 ... Servo unit 2 ... Preamplifier unit 3 ... Decoder unit 4 ... DA converter unit 11 ... Spindle motor 12 ... Pickup 13 ... Servo mechanism 14 ... APC circuit 15 ... Tracking / focus / carriage servo circuit 16 ... Spindle servo circuit 21 ... RF amplifier 22 ... Error generation circuit 23 ... Sub code decoding circuit 24 ... Audio data decoding circuit 25 ... Control data decoding circuit 26 ... Spindle servo error generation circuit 27 ... DA converter 28 ... LPF / audio amplifier 31 ... System controller section 32, 32A ... Display Operation unit 41 ... EFM extraction unit 42 ... RF system amplifier 43 ... Spindle servo error generation circuit 44 ... Video demodulation unit 45 ... Time axis correction servo unit 46 ... Time axis correction unit 47 ... Blue back character Data generator 48 ... Video signal processing unit 100 ... Record information reproducing device 100A ... CDV player 101 ... Music information reproducing means 102 ... Control information reproducing means 103 ... Control means 200 ... Information reading system 300 ... Audio reproducing system 400 ... Video reproducing system 500 ... Control system AI ... Music information B ... Laser beam CI ... Control information DK ... CDV disc MT ... Main track S _A ... Playback music signal S _C ... Clock signal ST ... Sub track

Front page continuation (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location G11B 20/02 M 7426-5D 20/10 D 7923-5D 301 A 7923-5D 31/02 8322-5D (72 ) Inventor Akira Kikuchi 4-15-5 Omorinishi, Ota-ku, Tokyo Pioneer Co., Ltd. Omori Plant (72) Inventor Tatsu Iizuka 4-15-5 Omorinishi, Ota-ku, Tokyo Pioneer Omori Plant (72) Inventor Shoji Sakamoto 4-15-5 Omorinishi, Ota-ku, Tokyo Pioneer Co., Ltd. Omori Plant

Claims (1)

[Claims] 1. A recording information reproducing apparatus for reproducing music from an information recording medium in which encoded music information and control information are recorded according to the MIDI standard, wherein the music information is decoded to output a reproduction music signal. Music information reproducing means, control information reproducing means for decoding the control information and outputting a clock signal for timing control, and controlling the reproduction order of the music information in the music information reproducing means based on the clock signal. A recorded information reproducing apparatus comprising: a control unit.