JPH05144238A - Automatic reproduction apparatus - Google Patents

Abstract

PURPOSE:To select and automatically reproduce a piece of audio data corre sponding to a partial melody by a method wherein, when a user has memorized the partial melody, the partial melody is input in a reproduction apparatus for a CD or the like. CONSTITUTION:A user presses a key for the melody of a piece of music to be reproduced on a CD by means of a keyboard at a musical-instrument operation part 202; a musical-instrument control part 201 stores a piece of data to be played on the basis of the operation of the key in a manual playing memory 208. After that, when the user presses a start switch inside the musical- instrument operation part 202, a retrieval circuit 210 retrieves a piece of music data corresponding to the piece of playing data stored in the manual playing memory 208 while it is reading out individual pieces of music data form a music data memory 116. As a result, when the corresponding piece of music data is found out, the retrieval circuit 210 instructs a CD control part 103 to reproduce a piece of audio data for a piece of music data corresponding to the piece of music data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for selecting and reproducing audio data in a reproducing device such as a CD.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
The music selection and reproduction of audio data in a reproduction device such as a CD is performed by a user operating a music selection switch to input a music number. In this case, the user
The songs were selected based on the song titles on the CD jacket.

However, the user does not always remember all the song names of the songs he or she wants to reproduce. If the song name is not completely stored, the user has to randomly operate the song selection switch to select a song by trial and error, which makes it difficult to reproduce the audio data of the desired song. ing.

An object of the present invention is to enable selection of music data and automatic reproduction of audio data corresponding to a melody when the user remembers a part of the melody by inputting a part of the melody. ..

[0005]

The present invention firstly has audio reproducing means such as a CD device or a DAT device for reading out audio data recorded on a recording medium such as a compact disc or a digital audio tape and reproducing the audio data. ..

Next, there is provided music data storage means for storing music data corresponding to each music of the audio data recorded on the recording medium. Here, music data corresponding to each music of the audio data in combination with audio data is stored in the subcode of the recording medium as a MIDI message or the like, and the music data on the recording medium is previously stored in a music data storage means such as a RAM. It can be configured to further include music data transfer control means for transferring. Or
The music data storage means may be configured as a read-only memory. The music data is composed of pitch data and pitch length data, for example.

Next, the user has performance operation means such as a keyboard operation for playing a piece of music to be reproduced, a fret operation for a stringed instrument, and a voice input operation for a microphone.
Here, for example, based on a performance operation by the performance operation means, a musical tone corresponding to the performance operation is produced from the electronic musical instrument or the like.

Subsequently, there is provided manual performance data storage means for storing performance data. Further, there is provided manual performance data storage control means for sequentially storing in the manual performance data storage means the performance data sequentially obtained from the performance operation means operated by the user. The same means stores, in a manual performance data storage means, pitch data obtained in sequence from the performance operation performed by the user on the performance operation means, together with pitch data obtained by detecting the performance timing. Sequentially stored as performance data.

In addition, a search means is provided for searching the music data storage means for music data corresponding to the performance data stored in the manual performance memory. This search means, for example,
It is determined whether or not each pitch data of each music in the music data storage means and each pitch data of the manual performance data storage means match each other. Next, the search means determines whether or not all the tone length data in the song data storage means and the tone length data in the manual performance data storage means for the song for which the determination result is affirmative, or It is further determined whether the matching rate is equal to or higher than a predetermined rate. And the search means is
When the determination result is affirmative, the music data of the music is output as the search result.

Alternatively, for example, the above-mentioned search means may include all of the pitch data and the pitch length data of the manual performance data storage means in each set of the pitch data and the pitch length data of each music of the music data storage means. Whether there is a matching part in the pair, or
It is determined whether or not all the sets have matching portions at a predetermined ratio. Then, when the determination result is affirmative, the search means outputs the music data of the music as the search result.

And, it has a reproduction music instructing means for instructing the audio reproducing means to reproduce the audio data corresponding to the music data searched by the searching means.

[0012]

The user plays a part of a piece of music he / she wants to reproduce by the performance operation means. The performance content is sequentially stored in the manual performance data storage means as performance data by the manual performance data storage control means.

Then, the searching means searches the music data storing means for music data corresponding to the performance data stored in the manual performance memory. And the playback music instruction means,
By instructing the audio reproducing means to reproduce the audio data corresponding to the music data searched by the searching means, the audio data of the music corresponding to the melody played by the user can be automatically selected and reproduced. it can.

In this case, the retrieving means can strictly determine whether the pitch data of the performance data and the musical piece data match, and then can determine the matching of the pitch length data that is strict or ambiguous.

Alternatively, the search means can comprehensively determine the pitch data and the pitch length data from the performance data and each music data. On the other hand, the subcode of the recording medium stores the music data corresponding to each music of the audio data in combination with the audio data, and the music data on the recording medium is stored in the music data storage means such as RAM by the music data transfer control means. By transferring in advance, audio data and music data can be provided in a unified manner.

Alternatively, the music data may be provided in a format such as a ROM.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. Configuration of Embodiment FIG. 1 is an overall configuration diagram of an embodiment of the present invention. In FIG. 1, the portion surrounded by the one-dot chain line 100 is the CD player portion, and the portion surrounded by the one-dot chain line 200 is the electronic keyboard musical instrument portion.

First, the block configuration of the CD player section 100 will be described. Reference numeral 105 denotes a CD (compact disc), which is set in a holder part (not shown) of the CD player part 100. In this embodiment, the CD
The CD 105 reproduced by the player unit 100 is characterized in that, in addition to normal audio data, music data for music selection is stored as a subcode.

The TOC memory 101 is a memory for storing TOC (Table of Contents) data in the lead-in area of the CD 105. This TOC data is CD105
Is automatically read when it is set in the CD player unit 100. Details of the TOC data will be described later.

Reference numeral 102 denotes a CD operating unit, which is not particularly shown, but is provided with a normal CD player such as a play switch, a stop switch, a pause switch for pause, and a user to perform a normal music selection operation according to a music number. It has a music selection switch and so on.

The CD control unit 103 is, for example, a microprocessor and controls the entire CD player unit 100. The CD control unit 103 exchanges various data with the sub chord signal processing circuit 110, the musical instrument control unit 201, the TOC memory 101, the music data memory 116 and the like. Further, the CD control unit 103 outputs a drive control signal to the servo circuit 104 when driving the CD 105.

The servo circuit 104 controls the number of rotations of the disk motor 106 that drives the CD 105 to rotate so that the linear velocity of the track of the CD 105 (Linear Velocity).
) Is controlled to be constant.

The servo circuit 104 is an optical pickup 1 for irradiating a track of the CD 105 with a laser beam.
Focus servo and tracking servo of 07 are performed. The focus servo above is the laser
The focus error is detected from the state of the reflected light of the beam, and the objective lens in the optical pickup 107 is controlled and driven in the optical axis direction based on the focus error.
Further, the tracking servo detects the deviation of the laser beam with respect to the track center of the CD 105, moves the optical pickup 107 in the radial direction by the pickup feed motor 108, and with respect to a minute deviation due to the eccentricity of the disk or the like. The lens itself inside the optical pickup 107 is moved so as to follow the track, so that the laser beam emitted from the optical pickup 107 is controlled to be accurately emitted to the center of the track of the CD 105.

A projection called a pit is formed on the surface of the CD 105 which is irradiated with the laser beam, and a PCM (Palse Code Modulation) signal is recorded from the pit. The optical pickup 107 detects the presence or absence of a pit based on the light quantity of the reflected light of the emitted laser beam, and corresponds to the presence or absence of the pit and its length.
The electric signal is output to the demodulation circuit 109.

The demodulation circuit 109 includes an optical pickup 107.
The frame sync signal is detected from the electric signal output from the device, the delimiter of each symbol word is identified, and the EFM-modulated (Eight to Fourteen Modulation) 14-bit symbol word in each frame is EFM demodulated. Convert to an 8-bit symbol word. And the above E
Among the FM demodulated symbol words, the symbol words containing audio data are output to the audio data signal processing circuit 111, and the symbol words containing subcodes are output to the subcode signal processing circuit 110.

The audio data signal processing circuit 111 includes
The audio data input is RA (not shown).
Writing to M or the like, error correction processing is performed based on the Reed-Solomon code, and de-interleaving processing is performed to restore 16-bit digital audio data in frame units. Then, this digital audio data is output to the D / A converter 112.

The D / A converter 112 converts the input digital audio data into an analog audio signal and outputs it. This analog audio signal is an LPF having a cutoff frequency which is half the sampling frequency.
It is given to the amplifier 114 and the speaker 115 via the (low-pass filter) 113, and is emitted outside.

The subcode signal processing circuit 110 performs error detection and correction processing and deinterleaving processing on the 8-bit subcode to restore the subcode. Then, the restored subcode is output to the CD control unit 103. The present embodiment is particularly characterized in that the subcode stores music data based on the MIDI standard for CD selection. Details of the subcode will be described later.

Next, the block configuration of the electronic keyboard instrument section 200 will be described. As shown in FIG. 2, the instrument operating section 202 includes a mode switch 202a and a start switch 202.
b, a keyboard 202c, a display unit 202d and the like are provided. The mode switch 202a is a PLAY mode for a normal keyboard performance, a mode I for storing the music data stored in the subcode of the CD 105 in the music data memory 116 in the CD player unit 100, and a mode selected by the user. Mode II for storing performance data for playing in the manual performance memory 208 in the electronic keyboard instrument section 200
This is a switch for switching between and. The start switch 202b is a switch for instructing the user to start automatic music selection. The keyboard 202c is a performance operation unit for allowing the user to perform a normal musical instrument performance input or a performance input for CD selection. On the display unit 202d, music data retrieved based on the performance data input by the user at the time of selecting a CD is displayed as a musical score, and various operation states are displayed.

The musical instrument control unit 201 is, for example, a microprocessor, and monitors the operating state of various keys of the musical instrument operating unit 202 at predetermined time intervals, and sends performance data to the tone generator 203 based on the operating state. In addition, various control processes for automatic music selection described later are executed.

The tone generator 203 is a musical instrument controller 2
A tone signal is generated based on the performance data from 01.
This tone signal is sent to the D / A converter 204. The tone signal is converted into an analog waveform signal by the D / A converter 204 and the LPF (low pass filter) 205, and then output to the outside through the amplifier 206 and the speaker 207. Recording Format on CD Next , a recording format of digital data on the CD 105 will be described.

FIG. 3 is a diagram showing a recording format of digital data to be recorded on the CD 105 in this embodiment. As shown in this figure, digital data is recorded in units called frames, and a sync pattern (sync pattern) 301 of 24 channel bits and a subcode 3 for one symbol are sequentially arranged from the beginning of each frame.
Audio data 303 for 02 and 12 symbols, parity word 304 for 4 symbols, audio data 305 for 12 symbols, and parity word 306 for 4 symbols are arranged.

Here, the sync pattern 301 is a signal for synchronizing the frame of FIG. 3, that is, for identifying the start of the frame when demodulating by the demodulation circuit 109 of FIG. A pattern that never occurs during ~ 306 is used.

Next, the audio data 303, 305
Is data of audio sound of a CD to be emitted from the speaker 115 of FIG. Also, the parity word 30
Reference numerals 4 and 306 denote codes added to correct a data error of the audio data 303 and 305 in frame units, and when the audio data signal processing circuit 111 reproduces the parity word in the CD player unit 100 of FIG. By making a determination using 304 and 306, a data error in each frame is automatically corrected.

Next, as the digital data recorded on the CD disc, in addition to the audio data 303 and 305 of FIG. 3, there is a data area 302 called a subcode.
FIG. 4 shows a data format centering on the subcode 302. Each bit of the 8-bit subcode 302 is referred to as P, Q, R, S, T, U, V, W.
Then, as shown in FIG. 4, the 8-bit sub-code defines the 98th frame from the 0th frame to the 97th frame as 1
It is assembled as a unit (this 98 frame is called a subcode frame). Then, among the 98 frames, the 8-bit subcodes of the 0th frame and the 1st frame are set as a sync pattern for the subcode, and the subcode signal processing circuit 110 of FIG.
It is a pattern for frame recognition for identifying the subcode information P to W of 7 frames.

Next, the bits P and Q of the second frame to the 97th frame are standardized as control bits. This area is used for system control in a normal CD. That is, the control bit P is data indicating the inter-song and the mid-song. If the frame corresponds to the inter-song and the audio data 303, 305 (FIG. 3) does not exist, the control bit P corresponds to one in the music, If it exists, it is set to 0.

The control bit Q is composed of the 96th bit of the second frame to the 97th frame, and is made up of the track number (song number) on the CD, the minute, second, and frame number from the beginning of each song (the above-mentioned sub-code).・ Number attached to the frame)
Relative time data indicated by, minutes from the beginning of the CD,
It represents data such as absolute time data indicated by seconds and frame numbers, and error detection code (CRC code) for each of the above information. Therefore, each of these pieces of information is updated every frame number, that is, every 98 frames (about every 1/75 seconds), and the CD control unit 103 of FIG.
By reading these pieces of information via 0, music selection access and music information display are performed. As will be described later,
In the lead-in area corresponding to the head portion of the CD disc, information corresponding to the table of contents of one CD disc called TOC is stored.

Next, the bits R to W are called user's bits, and in this embodiment, as will be described later, music data for automatic song selection, which will be described later, is contained in these user's bits.
It is recorded using a DI (Musical Instrument Digital Interface) message.

Here, of the 98 frame units in FIG. 4,
In the user's bits R to W of the subcodes of the 2nd to 97th frames, as shown in FIG. 5, 96 symbols (one symbol in this case consists of 6 bits of R to W) are called in units of packets. Each packet is assembled so as to include 4 packs of data of a unit called a pack of 24 symbols.

FIG. 6 shows a general data format of each pack (24 symbols of 0th to 23rd symbols of R to W). First, the upper 3 bits of the 0th symbol is called a “mode”, which indicates a general classification of what data this pack data indicates, and the lower 3 bits is called an “item”, which is the pack data. It shows a detailed classification. In the present embodiment, the 0th symbol mode / item is set with a code of "011000" indicating that a MIDI message is recorded in the data field.

The first symbol is called "instruction" and indicates hardware operation information of the decoder. In this embodiment, it indicates the number of bytes of the MIDI message recorded in the data field.

In the 4th to 19th symbols, music data representing pitch and length for automatic music selection, which will be described later, is MID.
It is recorded as an I message. Further, an error correction code is added in pack units. Parities Q0 and Q1 are added to the second to third symbols, and parities P0 to P3 are added to the twentieth to twenty-third symbols. Parity Q0 and Q1 are
(4, 2) of GF (2 ⁶ ) for the 0th to 3rd symbols
Reed-Solomon code, parity P0-P3 is 0th
(24, 20) of GF (2 ⁶ ) for the 23rd symbol
Is the Reed-Solomon code. These error correction codes are codes for error correction when the subcode signal processing circuit 110 of FIG. 1 performs deinterleaving in pack units and extracts the user bits RW of the 4th to 19th symbols. ..

FIG. 7 is a diagram conceptually showing a recording state of audio data and music data on the CD 105 in this embodiment. As described with reference to FIG. 3, each of the above data is recorded in frame units, and is recorded from the inner circumference to the outer circumference of the disc of the CD 105.

The innermost area of the disc (the area having a diameter of 46 mm to 50 mm) is called a lead-in area 401. Of the data recorded in this area in frame units of FIG. (Recorded in the format of 302 in FIG. 3), the TOC (Table of
Information corresponding to the table of contents for one CD called Contents) is recorded. The TOC data, audio data 403 ₁ to 403 ₃ and the music data 404 ₁ to 404 ₃ that is recorded in the program area 402 of FIG. 7
The absolute time data indicating the position of each head portion, that is, the time data indicating the minutes, seconds, and frame numbers from the head portion of the program area is recorded. Here, at each position on the disc in the program area 402, the absolute time data described above is uniquely determined from the inner circumference to the outer circumference. Therefore, the position of each audio data and * song data in the program area is set. It can be set as their absolute time. Therefore, the CD control unit 103 in FIG.
When accessing each of the above data on the disc,
First, by referring to the TOC data, any data can be accessed. In this way, each audio data and performance data on the disc can be managed by TOC.

Next, in the program area 402 following the lead-in area 401, of the data recorded in frame units in FIG. 2, audio data 403 which is the main data (recorded in the formats 303 and 305 in FIG. 3). Audio data for three songs 40
3 ₁ , 403 ₂ , and 403 ₃ are recorded. Then, at the time of reproduction, audio data of one of the songs is output.

In the program area 402, FIG.
Of the data recorded in the unit of frame, sub-code data 404 (recorded in the format of 302 in FIG. 3) is music data 404 for three songs for automatic music selection.
₁ , 404 ₂ and 404 ₃ are recorded as MIDI messages. The music data for all of these songs is read out from the sub-code signal processing circuit 110 of FIG. 1 to the music data memory 116 via the CD control unit 103 by the processing of mode I described later. Then, the music data of each music stored in the music data memory 116 is sent from the CD control unit 103 of FIG. 1 to the search circuit 210 via the musical instrument control unit 201 by the processing of mode II described later, and in the same circuit. A matching comparison process with the performance data stored in the manual performance memory 208 by the user is performed. Overall Operation Next, the overall operation of the embodiment of the present invention will be described.

First, when the user sets the PLAY mode by the mode switch 202a in the musical instrument operating section 202, the electronic keyboard musical instrument section 200 operates as a normal electronic musical instrument. In this case, the musical instrument control section 201 causes the tone generator 203 to output performance data corresponding to key-depression data obtained from the keyboard 202c based on a key-depression operation by the user or tone-color data designated by a tone-color designating switch (not shown). Send out. As a result, the tone generator 203 generates the corresponding musical sound data and outputs the sound via the D / A converter 204 and the like. On the other hand, the user is a CD
The player unit 100 can be operated as a normal audio reproducing device.

Next, when the user sets the mode I by the mode switch 202a in the musical instrument operating section 202, the musical instrument control section 201 outputs a predetermined instruction command to the CD control section 103, and thereby the CD Control unit 103
Performs a control process of transferring the music data stored in the subcode of the CD 105 to the music data memory 116. As a result, the music data for all the music stored in the automatic music selection CD 105 is read to the music data memory 116.

Further, when the user sets the mode II by the mode switch 202a in the musical instrument operating section 202, the musical instrument controlling section 201 corresponds to the key pressing data obtained from the keyboard 202c based on the key pressing operation by the user. The musical performance data to be reproduced is transmitted to the tone generator 203 to perform a musical tone generation operation, and the musical pitch data representing the pitch of the key depression is used as musical performance data in the manual musical performance memory 208.
Sequentially store in. At this time, the musical instrument control section 201 measures the tone length corresponding to each key depression using the timer circuit 209, and sequentially stores it in the manual performance memory 208 as performance data paired with the pitch data.

By the above-mentioned processing, the user can specify a part of the melody of the audio music recorded on the CD 105 desired to be reproduced by pressing the key. After that, when the user presses the start switch 202b, the musical instrument control section 201 activates the search circuit 210. As a result, the search circuit 210 causes the musical instrument control unit 201 to
And the music data memory 116 via the CD control unit 103.
Manual performance memory 2 while reading each song data from
Music data corresponding to the performance data stored in 08 is searched.

As a result, when the corresponding music data is found, the search circuit 210 causes the musical instrument control unit 201 to execute C
The D control unit 103 is instructed to reproduce the audio data of the music corresponding to the music data.

As a result, it is possible to automatically select and reproduce an audio music piece on the CD 105 corresponding to the melody keyed by the user. Of the overall operation of the present embodiment described above, Mode I particularly related to the present invention
Each processing operation of Mode II and Mode II will be described in detail below. Mode I operation The user operates the mode switch 202 in the musical instrument operating unit 202.
When the mode I is set by a, the musical instrument control unit 201
By outputting a predetermined instruction command to the CD control unit 103, the CD control unit 103 executes the control processing of mode I shown in the operation flowchart of FIG.

First, the CD control unit 103 is the musical instrument control unit 2
By controlling the servo circuit 104 and the pickup feed motor 108 based on the instruction command from 01,
Subcode data recorded on the CD 105 (see FIG. 3).
(See FIG. 5), the optical pickup 107, the demodulation circuit 10
9 and the subcode signal processing circuit 110 (step S801).

Next, the CD control unit 103 extracts MIDI messages (see FIGS. 6 and 7) representing pitches and lengths of all the songs in the sub-code data, and uses them as song data in the song data memory. 116 to store (step S
802).

Then, the CD control unit 103 continues the above steps S801 and S80 until the storage operation for all the songs is completed.
2 is repeated (the determination in step S803 is N
O). The reading position of the music data on the CD 105 is designated by referring to the contents of the TOC memory 101 described above.

When the storage operation for all the songs is completed (YES in step S803), a predetermined end display is displayed on the display section 202d (see FIG. 2) of the musical instrument operating section 202 under the control of the musical instrument controlling section 201 (step S804),
The operation of mode I ends. Mode II operation The user selects the mode switch 202 in the musical instrument operating unit 202.
When the mode II is set by a, the musical instrument control unit 20
In No. 1, the performance data corresponding to the key depression data obtained from the keyboard 202c based on the key depression operation by the user is sent to the tone generator 203 to cause the tone generation operation, and the control processing of the mode II of FIG. 9 is performed. The processing of steps S901 to S903 is executed.

First, the musical instrument control section 201 is the musical instrument operating section 2
No. 02 keyboard 202c is pressed (step S)
901). Next, the musical instrument control section 201 causes the manual performance memory 208 to store the performance data representing the pitch and the duration corresponding to the detected key depression action (step S902). Here, the musical length is determined by the musical instrument control unit 201 by the timer circuit 20.
It is measured by using 9.

Then, the musical instrument control section 201 determines whether or not the start switch 202b of the musical instrument operating section 202 is pressed (step S903), and if it is determined that the start switch 202b is not pressed, the musical performance data of the above-mentioned steps S901 and S902. The storage operation of is repeated (NO in step S903).

The musical instrument control unit 201 uses the start switch 20.
If it is determined that 2b has been pressed (YES in step S903).
S), control is transferred to the search circuit 210. As a result, the search circuit 210 executes the processing of steps S904 to S908 of the control processing of mode II in FIG.

First, the search circuit 210 includes the musical instrument control unit 20.
1 and the music data memory 11 via the CD control unit 103
While reading each music data from 6, the music data is compared with the performance data stored in the manual performance memory 208 (step S904).

A first example of this comparison processing is shown in FIG.
Here, first, the value of each pitch data in each music data sequentially read from the music data memory 116 and the value of each pitch data of the performance data sequentially read from the manual performance memory 208 match each other. It is determined whether or not (step S1101).

For the music data for which all of these are determined to be the same, the value of each note length data in the music data is compared with the value of each note length data of the above performance data (step S1102).

Then, the process proceeds to step S905 in FIG. 10, where it is determined whether or not the values of all the tone length data in the music data subjected to the above-mentioned comparison match.
In this determination process, it is determined whether or not the number of matching tone length data values in the music data compared as described above is equal to or more than a predetermined ratio of the number of tone length data of the entire music data. It may be a process of determining whether or not, that is, a process of determining whether or not the values of the tone length data substantially match.

On the other hand, FIG. 12 shows a second example of the comparison processing in step S904 in FIG. In this case, the user
Only the arbitrary one bar section in the desired music is played by key depression and stored in the manual performance memory 208.

In FIG. 12, the value of each pair of pitch data and duration data for one bar in each music data sequentially read from the music data memory 116 and the performance data sequentially read from the manual performance memory 208. The pitch data and the value of each set of the pitch data are compared (step S
1201).

Then, the process proceeds to step S905 in FIG. 10, where it is determined for each music data whether the values of all the sets of the pitch data and the pitch data in the music data match. It In this determination process, the number of matching values of the pitch data and the pitch length data in each music data is a predetermined number of the number of the pitch data and the pitch data sets of the entire music data. It may be a process of determining whether or not the ratio is equal to or more than the ratio, that is, a process of determining whether or not the values of the pair of the pitch data and the pitch data substantially match.

In the determination in step S905 of FIG. 10 based on any of the above comparison processes, if the determination is YES, the process proceeds to step S906. Here, the search circuit 210 instructs the CD control unit 103 via the musical instrument control unit 201 to reproduce the audio data having the song number of the song whose data match (or almost match) is detected. Thereby, the CD control unit 103 extracts the read position of the audio data corresponding to the music number by referring to the contents of the TOC memory 101 described above, and starts the reproduction of the audio data. Note that the song number data of each song data is recorded in the subcode of the CD 105 together with the song data, and the song number data is stored in the song data memory 116 together with the song data by the control processing of the mode I described above. It has been read.

In addition to the above processing operation, the search circuit 210 gives an instruction to the musical instrument control unit 201, and based on the music data corresponding to the music for which the data match (or almost match) is detected, the display unit of the musical instrument operation unit 202. The score is displayed on 202d (see FIG. 2). The musical score data is recorded in the subcode of the CD 105 together with the musical composition data, for example, and the musical score data is read out to the musical composition data memory 116 together with the musical composition data by the control processing of the mode I described above.

When the reproduction of the audio data for one song is completed, the CD control section 103 causes the musical instrument control section 201 to
The musical instrument control section 201 terminates the control processing of mode II (YES in step S908).

On the other hand, in the determination in step S905 of FIG. 10 based on any of the above-described comparison processes, if the determination is NO, the process proceeds to step S909. Here, the search circuit 210 issues an instruction to the musical instrument control unit 201,
On the display section 202d (see FIG. 2) of the musical instrument operating section 202,
A message stating “There is no corresponding song. Please play another song.” Is displayed, and then the musical instrument control unit 201 ends the control processing of mode II. Other Embodiments In the above-described embodiments, the comparison processing of FIG. 11 and the comparison processing of FIG. 12 are described as different examples, but the comparison processing may be configured to be selectable by the user.

The present invention is also applicable to DAT other than CD, for example.
Needless to say, it can be applied to (digital audio tape recorder) and the like. Further, in the above-mentioned embodiment, C
The music data for automatic music selection recorded in the D subcode is read into the music data memory 116.
The music data for automatic music selection may be stored in, for example, a ROM other than the CD or digital audio tape which is a recording medium of audio data.

Furthermore, in the above-described embodiment, the keyboard 20
Although the musical instrument control unit 201 detects performance data representing the corresponding pitch and duration from the pressed state of 2c, the present invention is not limited to this, and other performance operations, such as voice input to the microphone, can be used. The musical instrument control section may detect the pitches and tone lengths to be performed in a time series and store the performance data representing the pitches and tone lengths in the manual performance memory.

[0073]

According to the present invention, the audio data of the music corresponding to the melody played by the user can be automatically selected and reproduced. However, it becomes possible to automatically reproduce the audio data corresponding to it.

In this case, since the search means can determine the matching of the pitch data between the performance data and the music data, the matching of the pitch data can be determined strictly or ambiguously. Even if the performance timing is shifted to some extent, it is possible to perform automatic music selection.

Alternatively, the search means can comprehensively determine the pitch data and the pitch length data from the performance data and each piece of music data, so that there is a certain amount of difference between the pitch designation and the performance timing. However, even if the melody is remembered for only one measure, it is possible to automatically select a song.

Further, the subcode of the recording medium stores the music data corresponding to each music of the audio data in combination with the audio data, and the music data on the recording medium is transferred to the music data such as RAM by the music data transfer control means. By transferring the data in advance to the storage means, it becomes possible to provide audio data and music data in a unified manner.

Alternatively, the music data may be provided in a format such as a ROM.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a configuration diagram of a musical instrument operating unit.

FIG. 3 is a configuration diagram of a frame.

FIG. 4 is a configuration diagram of a subcode frame.

FIG. 5 is a diagram showing a packet structure of user bits.

FIG. 6 is a diagram showing a user's bit pack format.

FIG. 7 is a diagram showing the contents of audio data and subcodes recorded on a CD.

FIG. 8 is an operation flowchart showing processing in mode I.

FIG. 9 is an operation flowchart (No. 1) showing processing in mode II.

FIG. 10 is an operation flowchart (No. 2) showing processing in mode II.

FIG. 11 is an operation flowchart showing a first example of comparison processing.

FIG. 12 is an operation flowchart showing a second example of comparison processing.

[Explanation of symbols]

 100 ... CD player section 101 ... TOC memory 102 ... CD operating section 103 ... CD control section 104 ... Servo circuit 105 ... CD 106 ... Disk motor 107 ... Optical pickup 108 ... Pickup feed motor 109 ... Demodulation circuit 110 ... Subcode signal processing circuit 111 ... Audio data signal processing circuit 112 ... D / A converter 113 ... LPF 114 ... Amplifier 115 ... Speaker 200 ... Electronic keyboard musical instrument section 201 ... Musical instrument control section 202 ... Musical instrument operating section 202a ... Mode switch 202b ... Start switch 202c ... Keyboard 202d ... Display section 203 ... Tone generator 204 ... D / A converter 205 ... LPF 206 ... Amplifier 07 ... speaker

Claims (10)

[Claims] 1. An audio reproducing means for reading audio data recorded on a recording medium and reproducing the audio data, and a music data storing means for storing music data corresponding to each music of the audio data recorded on the recording medium. , Performance operation means for allowing the user to play a piece of music to be reproduced, manual performance data storage means for storing performance data, and performance data sequentially obtained from the performance operation means based on the user's performance operation on the performance operation means. Manual performance data storage control means for sequentially storing in the manual performance data storage means, search means for searching the music data storage means for music data corresponding to the performance data stored in the manual performance memory, and search by the search means Of the audio data corresponding to the reproduced music data. An automatic playback device comprising: live music instruction means. 2. An audio reproducing device for reading audio data recorded on a recording medium and reproducing the audio data, and a plurality of pitch data and tone length data corresponding to each music piece of the audio data recorded on the recording medium. Music data storage means for storing music data consisting of a set, performance operation means for allowing the user to play a music piece to be reproduced, manual performance data storage means for storing performance data, Manual performance data storage control means for sequentially storing pitch data obtained from the performance operation based on performance operations in combination with pitch length data obtained by detecting performance timing as performance data in the manual performance data storage means. , Searching for music data corresponding to the performance data stored in the manual performance memory from the music data storage means. Search means and an automatic reproducing apparatus characterized by having a a played tune instruction means for instructing to the audio playback means playing the audio data corresponding to the music data searched by said searching means. 3. The search means determines whether or not each pitch data of each music of the music data storage means and each pitch data of the manual performance data storage means all match, and the determination result Is further affirmative, it is further determined whether or not all the note length data of the song data storage means and the note length data of the manual performance data storage means match, and the determination result is affirmative. When it is, the music data of the music is output as a search result. The automatic reproduction device according to claim 2. 4. The search means determines whether or not each pitch data of each music of the music data storage means and each pitch data of the manual performance data storage means all match, and the judgment result Is further affirmative, it is further determined whether or not the rate at which the respective note length data in the song data storage means and the note length data in the manual performance data storage means match is greater than or equal to a predetermined rate. The automatic reproduction device according to claim 2, wherein the music data of the music is output as a search result when the determination result is affirmative. 5. The search means includes all sets of pitch data and pitch data of the manual performance data storage means in each set of pitch data and pitch data of each music of the music data storage means. 3. The automatic playback device according to claim 2, wherein it is determined whether or not there is a portion that matches with, and if the determination result is affirmative, the music data of the music is output as a search result. .. 6. The search means includes all pairs of pitch data and pitch data of the manual performance data storage means in each pair of pitch data and pitch data of each music of the music data storage means. 3. It is determined whether or not there is a matching portion at a predetermined ratio, and if the determination result is affirmative, the music data of the music is output as a search result. Automatic playback device. 7. Music data transfer control means for transferring in advance to the music data storage means music data corresponding to each music of the audio data recorded in combination with the audio data in the subcode of the recording medium. The automatic reproducing apparatus according to any one of claims 1 to 6, further comprising: 8. The automatic reproducing apparatus according to claim 1, wherein the music data storage means is a read-only memory. 9. The automatic reproducing apparatus according to claim 1, wherein the recording medium is a compact disc, and the audio reproducing means is a compact disc player. 10. The automatic reproducing apparatus according to claim 1, wherein the recording medium is a digital audio tape, and the audio reproducing means is a digital audio tape recorder.