JP4344679B2 - SOUND DEVICE, SOUND DEVICE CONTROL METHOD, CONTROL PROGRAM, AND RECORDING MEDIUM - Google Patents

Description

  The present invention relates to a technology of an audio device that stores audio data or reproduces the stored audio data.

  2. Description of the Related Art Conventionally, an audio device that compresses audio data such as song data stored in a CDDA (Compact Disc Digital Audio), stores the compressed data in an HDD (Hard Disk Drive) device, and reproduces the audio data stored in the HDD device. Are known. In this type of audio apparatus, there is known an audio apparatus having a folder management function for grouping a plurality of audio data stored in an HDD apparatus, for example, in album units and handling them as one folder (for example, Patent Document 1).

This type of sound device has a display device, and when recording, displays a list of folders on the display device, accepts a selection operation of a recording destination folder from the list, or creates a new recording destination folder The operation is accepted. When performing playback, a list of folders is displayed on the display device, and a selection operation of a playback destination folder is received from the list.
JP 2002-373097 A

  However, in the conventional configuration, when the user wants to play a desired song, the user needs to perform an operation of displaying a list of folders in the order of creation or name, and then select a folder including the target song. Therefore, there is a problem that the number of operations increases.

  Moreover, in the conventional configuration, it is necessary to display a list of folders on the display device, and in an in-vehicle audio device or the like with a limited display area, all folders may not be displayed at one time. There is a problem that the number of operations required further increases and the operation becomes more complicated. In particular, in-vehicle acoustic devices that can perform recording and playback operations more easily are desired.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an acoustic device, a control method for the acoustic device, a control program, and a recording medium that can improve operability when recording and reproducing. It is said.

  In order to solve the above-described problems, the present invention provides an audio device having an operation means having a plurality of recording / playback controls and a storage having a plurality of storage areas allocated to each of the plurality of recording / playback controls. And any one of the plurality of recording / playback controls is operated during the input of the voice data, and the voice data is already stored in the storage area corresponding to the operated recording / playback control, When an instruction operation is performed, the input audio data is newly stored in a storage area corresponding to the operated recording / playback operation element, and the plurality of recording / playback operation elements are stored while no audio data is being input. Control means is provided for reproducing sound data stored in a storage area corresponding to the operated recording / reproducing operation element when any one of them is operated.

  Further, in the acoustic device, any one of the plurality of recording / reproducing operators is operated during input of the audio data, and no audio data is stored in a storage area corresponding to the operated recording / reproducing operator. In this case, the input voice data is stored in a storage area corresponding to the operated recording / playback operation element.

  In the acoustic apparatus, the predetermined instruction operation is a case where the same recording / reproducing operation element is operated again within a predetermined time after the operation.

  Further, in the acoustic device, any one of the plurality of recording / playback controls is operated during input of the voice data, and the voice data is already stored in the storage area corresponding to the operated recording / playback controls. In this case, it is provided with an erasure notification means for notifying that the stored voice data may be erased, and the predetermined instruction operation is again performed within the predetermined time after the notification by the erasure notification means. This is a case where the recording / reproducing operation element is operated.

  The sound apparatus may further include a recording stop notification means for notifying that the recording is stopped when none of the plurality of recording / playback operating elements is operated within the predetermined time. is there.

  Further, in the sound device, when a recording / playback operation element corresponding to a storage area in which no voice data is stored is operated while no voice data is being input, a notification means for notifying that there is no voice data to be played back It is characterized by comprising.

  The acoustic device further includes reading means for reading source sound data recorded on the sound data recording medium, and the control means reads by the reading means when any of the recording / reproducing operators is operated. The obtained source voice data is input as voice data.

  The acoustic apparatus further comprises reading means for reading the source sound data recorded on the sound data recording medium, and compression means for compressing the read source sound data, and the control means is for recording and reproduction. When any one of the operators is operated, the source voice data compressed by the compression means is input as voice data.

  Further, in the acoustic device, the storage area is provided with a related data storage area for storing related data related to source voice data recorded in the voice data recording medium. Is.

  In the acoustic apparatus, the storage means is a rewritable nonvolatile memory.

  In the acoustic device, the acoustic device main body is mounted on a vehicle, and the operation means is arranged at a position operable by a user.

  An audio device for reproducing audio data, comprising: a storage unit for storing audio data; and a method for controlling an audio device comprising a plurality of recording / playback operators, wherein the plurality of recordings are input during input of audio data. If any of the playback controls is operated, and the voice data has already been stored in the storage area corresponding to the operated recording / playback controls, and the predetermined instruction operation is performed, the input voice data is , A first process of newly storing in the storage area corresponding to the operated recording / reproducing operation element, and when any of the plurality of recording / reproducing operation elements is operated during non-input of audio data, And a second step of reproducing the audio data stored in the storage area corresponding to the operated recording / reproducing operation element.

  In addition, in a control program for controlling a sound device, which is a sound device that reproduces sound data, and includes a storage unit that stores sound data and a plurality of recording / playback operators, input of the sound data Any one of the plurality of recording / playback controls is operated, and voice data is already stored in the storage area corresponding to the operated recording / playback control, and a predetermined instruction operation is performed. When the input voice data is newly stored in the storage area corresponding to the operated recording / playback operation element, and any one of the plurality of recording / playback controls is operated while the voice data is not input. The voice data stored in the storage area corresponding to the operated recording / playback operation element is played back.

  Further, the control program is recorded on a computer-readable recording medium.

  The present invention can improve operability when recording and reproducing.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an external appearance of the acoustic device according to the present embodiment, and FIG. 2 is a block diagram showing the acoustic device.
As shown in FIG. 1, the acoustic device 10 is a vehicle-mounted acoustic device in which an acoustic device body 10 </ b> A is housed in a vehicle dashboard or the like. On the front surface of the audio device main body 10A, a display unit 14 for displaying various information, a loading unit 11A for loading and unloading CDDA (Compact Disc Digital Audio: music CD) into the audio device main body 10A, and a driver An operation unit 15 is provided as an interface for performing various operations by the user.

  As shown in FIG. 2, the acoustic device 10 includes a CDDA playback device (reading unit) 11, a control unit (control unit) 12, an audio playback unit (sound playback unit) 13, and a display unit (display unit) 14. An operation unit (operation unit) 15, a compression unit (compression unit) 20, a drive unit 21, a storage device (storage unit) 22, and a deployment unit (extension unit) 23.

  The CDDA playback device 11 can be loaded with CDDA. Under the control of the control unit 12, the CDDA playback device 11 reads music data as source audio data and TOC (Table of Contents) data as related data from the loaded CDDA. Is output to the control unit 12. Here, the TOC data is data including the number of songs, song title, performance time, and the like.

  The control unit 12 includes a CPU, a ROM that stores a control program executed by the CPU, a RAM that temporarily stores various data, and the like, and functions as a computer that controls the entire acoustic device 10.

  The audio reproducing unit 13 has a function of decoding music data input from the control unit 12 or the developing unit 23 and generating a digital audio signal. Furthermore, the audio reproduction unit 13 includes a D / A conversion circuit and an amplifier (both not shown). Under the control of the control unit 12, the D / A conversion circuit converts the digital audio signal to analog to analog. The audio signal is amplified by an amplifier and output to a speaker (not shown).

  The display unit 14 includes, for example, a small liquid crystal panel and a drive circuit, and displays a state controlled by the control unit 12 under the control of the control unit 12. For example, the display unit 14 displays various pieces of information such as the location of the song data being played (separate from the CDDA or the storage device 22), the song being played, and the performance time under the control of the control unit 12. The operation unit 15 is a user interface on which a user such as a driver performs various operations.

  The compression unit 20 performs predetermined compression processing on the song data under the control of the control unit 12 to generate compressed song data as audio data with a reduced data amount, and outputs the compressed song data to the control unit 12. The drive unit 21 performs write control for storing the compressed music piece data in the storage device 22 under the control of the control unit 12. Further, the drive unit 21 performs reading control of the compressed music data stored in the storage device 22 under the control of the control unit 12, and the expansion unit 23 performs decompression processing on the compressed music data and converts it into music data. Expand and output to the audio playback unit 13.

  That is, the sound device 10 has a recording function for compressing music data stored in the CDDA and storing it in the storage device 22 in addition to a playback function for reproducing the CDDA, and a compressed music data stored in the storage device 22. And a compressed music data playback function for playback.

  The storage device 22 is a rewritable nonvolatile semiconductor memory such as a flash memory, and has a storage capacity capable of storing a large number of compressed music data. Since a semiconductor memory is used for the storage device 22, the storage device 22 can be made smaller than when an HDD device is used for the storage device 22, and the layout flexibility of the storage device 22 can be improved. A known portable memory that is detachable from the semiconductor memory may be applied. In this case, it becomes possible to exchange the portable memory attached to the audio device 10 and to reproduce the compressed music data stored in the portable memory with another device (for example, a PC (Personal Computer)). Needless to say, an HDD device may be used as the storage device 22.

  In the present embodiment, the operation unit 15 performs recording and reproduction of compressed music data stored in the storage device 22 in addition to operators for a user to perform basic operations such as power-on, CDDA reproduction, and stop. A plurality (six in this embodiment) of push-type recording / reproducing operators A to F for instructing are provided. These recording / reproducing operators A to F are constituted by tact switches, for example.

  In the acoustic device 10, when the power is first turned on, the control unit 12 inquires of the operation unit 15 about the number of recording / reproducing operators A to F, and the storage device 22 is inquired as shown in FIG. Then, an area securing process for securing the same number of storage areas R1 to R6 as the number of recording / reproducing operators A to F is executed. For this reason, the same number of recording areas R1 to R6 as the actual number of recording and reproducing operators A to F can be appropriately secured.

  These storage areas R1 to R6 include identification data storage areas R1A to R6A for storing identification data indicating the recording / playback operation elements, compressed data storage areas R1B to R6B for storing compressed music data, Related data storage areas R1C to R6C for storing TOC data as related data are allocated.

Next, the operation in the case of storing (that is, recording) compressed music data using the recording / reproducing operators A to F will be described. FIG. 4 is a flowchart showing the recording operation.
The control unit 12 detects that any one of the recording / reproduction operators A to F is pressed while the audio reproduction unit 13 is reproducing the CDDA song data read from the CDDA reproduction apparatus 11 (step S1). Then, it is determined whether or not the compressed music data has been stored in the storage area of the storage device 22 assigned to the pressed recording / playback operation element (step S2).

  For example, when the recording / reproducing operator A is pressed, the control unit 12 determines whether or not the compressed music data is stored in the storage area R1, and the recording / reproducing operator B is pressed. In this case, it is determined whether or not the compressed music data has been stored in the storage area R2. Hereinafter, a case where the recording / playback operation element A is pressed will be described as an example.

  When the compressed music data is not stored in the storage area R1 corresponding to the operated recording / playback operation element A (step S2; No), the control unit 12 first data data among the plurality of music data of CDDA. Are sequentially read out and output to the sound reproduction unit 13 (step S3), and the read music data is sent to the compression unit 20, and under the control of the control unit 12, the music data is sequentially compressed to generate compressed music data. (Step S4). That is, the compressed music data is generated while the music data is sequentially reproduced.

  Next, the control unit 12 inputs the compressed music data and the TOC data read from the CDDA, and executes a recording operation for storing in the storage area R1 corresponding to the operated recording / playback operation element A ( Step S5). In the present embodiment, the same number of six CDDA album songs as the recording / playback controls A to F can be loaded.

  In other words, in this embodiment, a user such as a driver can operate all of the recording / playback controls A to F once during CDDA playback, and can handle all song data recorded on the CDDA. The compressed music data can be stored in the storage area assigned to the recording / playback operation element that has been pressed, and the operability during recording can be improved.

  On the other hand, if it is determined in step S2 that the compressed music data has already been stored in the storage area R1 corresponding to the operated recording / reproducing operator A (step S2; Yes), the control unit 12 shifts to the erasing mode. (Step S6), the CDDA playback is stopped, and the compressed music data stored in the storage area R1 corresponding to the operated recording / playback operation element A is played back (Step S7). Thus, the user can listen to the music before erasing the compressed music data in the storage area R1 and confirm whether the music may be erased.

  At this time, the control unit 12 causes the display unit 14 to display “can be deleted” (step S8), and informs the user that the compressed music data may be deleted.

  Next, the control unit 12 determines whether or not a predetermined time (for example, 20 seconds) has elapsed since the notification (step S9). When the predetermined time has not elapsed (step S9; No), the control unit 12 operates the same recording / reproducing operator A as the recording / reproducing operator A operated in step S1 as the predetermined instruction operation. It is determined whether or not (step S10).

  When the same recording / reproducing operator A is operated (step S10; Yes), the control unit 12 stores all the compressed music piece data and the TOC data stored in the storage area R1 corresponding to the recording / reproducing operator A. Erasing (step S11), the process proceeds to step S3. That is, the control unit 12 deletes all the compressed music data in the storage area R1, compresses the music data read from the CDDA playback device 11 by the compression unit 20, and generates compressed music data. An erasure recording operation is performed by inputting the data and storing it in the storage area R1.

  By this erasure recording operation by the control unit 12, when the user erases the compressed music data stored in the storage area R1 and newly compresses and stores the CDDA music data, the same recording / playback is performed. It is only necessary to operate the controller A once, and since erasing and recording can be easily performed, the operability during recording can be improved.

  In step S10, when the same recording / reproducing operator A is not operated (step S10; No), the control unit 12 determines whether any of the other recording / reproducing operators B to F is operated. Judgment is made (step S12). When none of the recording / reproducing operators B to F is operated (step S12; No), the control unit 12 proceeds to the process of step S9, and any of the recording / reproducing operators B to F, for example, When the recording / reproducing operator B is operated (step S12; Yes), the control unit 12 proceeds to the process of step S2.

  That is, when the recording / reproducing operation element B is operated in step S12, in step S2, the control unit 12 determines whether or not the compressed music data is stored in the storage area R2 corresponding to the recording / reproducing operation element B. Judgment will be made. By this operation of the control unit 12, when the user does not want to delete the compressed music data in the storage area R1, the user simply operates the other recording / playback operation element B to store the CDDA in the other storage area R2. The song data can be compressed and stored, and the operability during recording can be further improved.

  In step S10, when the predetermined time has elapsed (step S10; Yes), the control unit 12 exits from the erasing mode and displays “recording stop” on the display unit 14 to notify the user that recording is to be stopped. (Step S13), normal CDDA playback is performed (Step S14). As a result, it is possible to prevent the compressed music piece data stored in the storage area R1 from being erased by mistake.

FIG. 5 is a flowchart showing the reproduction operation of the compressed music data.
When the control unit 12 detects that any one of the recording / reproducing operators A to F is pressed during non-reproduction of the CDDA (step S21), the control unit 12 stores the memory allocated to the pressed recording / reproducing operator. It is determined whether or not the compressed music data has been stored in the storage area of the device 22 (step S22). For example, when the recording / reproducing operator A is pressed, it is determined whether or not the compressed music data has been stored in the storage area R1 of the storage device 22.

  When the compressed music data has already been stored in the storage area R1 (step S22; Yes), the control unit 12 sequentially reads the compressed music data stored in the storage area R1, and the decompressed section 23 reads the read compressed music data. The decompression process is performed to develop the song data (step S23), and the song data is output to the voice reproduction unit 13 to emit the corresponding voice from the speaker (step S24). In this case, the control unit 12 refers to the TOC data stored in the storage area R1, and plays back the song in the same order as recorded in the CDDA, and the performance time and song title of the song being played back. Is displayed on the display unit 14.

  That is, in the present embodiment, a user such as a driver operates the recording / playback controls A to F only once during non-playback of CDDA, from among the compressed music data stored in the storage device 22. Since desired compressed music data can be reproduced, the operability during reproduction can be improved.

  On the other hand, if it is determined in step S12 that the compressed music data is not stored (step S22; No), for example, the compressed music data is not stored in the storage area R2, and for recording and reproduction corresponding to the storage area R2. When the operation element B is operated, the control unit 12 displays on the display unit 14 that there is no music data to be reproduced (step S25).

  As described above, in this embodiment, a user such as a driver can easily record a song (album song) in the CDDA by operating the recording / reproducing controls A to F, and record the recorded song. Since it can be played back by operating the playback controls A to F, the album song is selected at the time of song selection as compared to the conventional one that displays a list of folders in which recorded album songs are grouped. Therefore, since it is not necessary to display a list screen or the like, the display area can be reduced, and even an in-vehicle device with a limited display area can further improve the operability during recording and reproduction.

  Further, in this embodiment, a user such as a driver can record, play, or delete a song with a simple operation. Therefore, in particular, when the audio device 10 main body is mounted on a vehicle, Since the user can quickly record, play, or delete a song while the vehicle is stopped, the user can easily operate and concentrate more on driving.

FIG. 6 is a perspective view illustrating an appearance of an acoustic device according to another embodiment.
As shown in FIG. 6, the operation unit 15 is configured separately from the acoustic device main body 10 </ b> A. The operation unit 15 is attached to the vicinity of the driver, for example, the steering wheel H of the vehicle, so that the driver can more easily operate the operation unit 15. The operation unit 15 and the audio device main body 10A are connected wirelessly or by wire, and a signal indicating that the operation unit 15 has been operated is transmitted to the audio device main body 10A.

  The embodiment described above shows one aspect of the present invention, and does not limit the present invention, and can be arbitrarily changed within the scope of the present invention. Furthermore, the configuration shown in the embodiment is not limited thereto, and can be appropriately changed without departing from the gist of the present invention.

  For example, in the above-described embodiment, when any of the recording / playback controls A to F is operated during playback of CDDA, a case has been described in which all songs recorded on CDDA are recorded. You may make it record only the song. Specifically, when any of the recording / playback controls A to F is operated during CDDA playback, the control unit 12 reads the music data of one song being played by the CDDA playback device 11, The music data for one music may be compressed by the compression unit 20 and stored in the storage area of the storage device 22.

  In the above-described embodiment, the case where the audio device 10 includes the CDDA reproduction device 11 as a reading unit has been described. However, the audio device 10 may be applied to an audio device to which the CDDA reproduction device 11 is externally connected. In addition, the present invention is not limited to the case where the present invention is applied to an audio device that stores music data stored in CDDA, but is input from audio data of a radio broadcast or from an MD (Mini Disc) playback device or a DVD (Digital Versatile Disk) playback device. The present invention can be widely applied to an audio device that stores the audio data, and is not limited to an on-vehicle audio device, and can be widely applied to an audio device other than the on-vehicle audio device. Furthermore, in the above-described embodiment, the case of digital recording has been described. However, the present invention can also be applied to analog recording.

  In the above-described embodiment, the compression unit 20 compresses song data as source audio data, and the control unit 12 inputs the compressed compressed song data as audio data and stores it in the storage device 22. Although described above, the present invention is not limited to this, and the present invention can also be applied to a case where the control unit 12 directly inputs the source audio data as audio data and stores it in the storage device 22 without compressing the source audio data. In this case, the compression unit 20 (and the expansion unit 23) can be omitted.

  In the above-described embodiment, the case where various notifications (notifications in steps S8, S13, and S25) to the user is performed by the display unit 14 has been described, but various notifications may be performed by voice. Specifically, the control unit 12 may store audio data corresponding to various notifications in advance, and output the audio data to the audio reproduction unit 13 when executing the processes in steps S8, S13, and S25. In this case, since the control unit 12 and the audio reproduction unit 13 function as a notification unit, the present invention can be applied to an acoustic device that does not include the display unit 14.

  In the above-described embodiment, the case where the control program for recording, reproduction, and erasing is stored in the ROM of the control unit 12 in advance has been described. However, the control program is stored in a magnetic recording medium, an optical recording medium, The program may be stored in a computer-readable recording medium such as a semiconductor recording medium, and the computer may read and execute the control program from the recording medium. The control program may be downloaded from a distribution server on the communication network.

It is a perspective view which shows the external appearance of the audio equipment concerning this embodiment. It is a block diagram which shows an audio equipment. It is a figure where it uses for description of a memory | storage device. It is a flowchart which shows a recording operation. It is a flowchart which shows reproduction | regeneration operation | movement of compression music data. It is a perspective view which shows the external appearance of the audio equipment in another embodiment.

Explanation of symbols

10 Audio device 11 CDDA playback device (reading means)
12 Control unit (control means)
13 Voice playback unit 14 Display unit (erase notification means, recording stop notification means, notification means)
15 Operation part (operation means)
20 Compression unit (compression means)
21 drive unit 22 storage device (storage means)
23 Expander A to F Recording / playback controls R1 to R6 Storage area

Claims (11)

In an in-vehicle audio device mounted on a vehicle,
Operating means having a plurality of recording and playback controls;
Storage means having a plurality of storage areas assigned to each of the plurality of recording and playback operators;
One of the plurality of recording / playback controls is operated during the input of the voice data, the voice data is already stored in the storage area corresponding to the operated recording / playback control, and a predetermined instruction operation is performed. If done , the audio data of a plurality of songs recorded on the audio data recording medium being input are sequentially compressed while being reproduced, and the audio data of all the songs stored in the audio data recording medium are supported Generating compressed data to be stored, and newly storing the compressed data in a storage area corresponding to the operated recording / playback operation element,
In each storage area of the storage unit, information indicating the corresponding recording / playback operation element, the compressed data, and related data corresponding to the compressed data are stored in association with each other.
If any of the plurality of recording / playback controls is operated while no audio data is being input, the compressed data stored in the storage area corresponding to the operated recording / playback controls is sequentially read and decompressed. And a control means for expanding the audio data and reproducing the expanded audio data in the same music order as that recorded on the audio data recording medium based on the related data stored in the storage area . An acoustic device characterized by that.   If any of the plurality of recording / playback controls is operated during the input of the voice data, and no voice data is stored in the storage area corresponding to the operated recording / playback controls, the input voice data is 2. The acoustic apparatus according to claim 1, wherein the sound device is stored in a storage area corresponding to the operated recording / reproducing operation element.   The acoustic apparatus according to claim 1, wherein the predetermined instruction operation is a case where the same recording / reproducing operation element is operated again within a predetermined time after the operation. If one of the plurality of recording / playback controls is operated during the input of the voice data, and the voice data has already been stored in the storage area corresponding to the operated recording / playback control, it is stored. An erasure notification means for reproducing the compressed music data stored in the storage area corresponding to the operated recording / reproducing operator ,
The acoustic apparatus according to claim 1 or 2, wherein the predetermined instruction operation is a case where the same recording / reproducing operation element is operated again within a predetermined time after notification by the erasure notification means. .   5. The sound according to claim 3, further comprising recording stop notification means for notifying that recording is stopped when none of the plurality of recording / playback operators are operated within the predetermined time. apparatus.   In the absence of audio data input, when a recording / playback operation element corresponding to a storage area in which no audio data is stored is operated, a notification means is provided to notify that there is no audio data to be reproduced. The acoustic device according to any one of claims 1 to 5. Wherein the storage unit, an acoustic device according to any one of claims 1 to 6, characterized in that a rewritable nonvolatile memory. The acoustic device according to any one of claims 1 to 7 , wherein the acoustic device main body is mounted on a vehicle, and the operation means is disposed at a position operable by a user. In a vehicle-mounted acoustic device that is mounted on a vehicle and reproduces voice data, the storage device storing voice data, and a control method of the acoustic device including a plurality of recording / playback operators,
One of the plurality of recording / playback controls is operated during the input of the voice data, the voice data is already stored in the storage area corresponding to the operated recording / playback control, and a predetermined instruction operation is performed. If done , the audio data of a plurality of songs recorded on the audio data recording medium being input are sequentially compressed while being reproduced, and the audio data of all the songs stored in the audio data recording medium are supported Compressed data is generated , the compressed data is newly stored in a storage area corresponding to the operated recording / playback operation element, and the corresponding recording / playback operation element is stored in each storage area of the storage unit. and information indicating, with the compressed data, the first step shall be the state and the associated data is stored in association with corresponding to the compressed data,
If any of the plurality of recording / playback controls is operated while no audio data is being input, the compressed data stored in the storage area corresponding to the operated recording / playback controls is sequentially read and decompressed. A second step of expanding the audio data into the audio data and reproducing the expanded audio data in the same music order as that recorded on the audio data recording medium based on the related data stored in the storage area. A method for controlling an audio device, comprising: A control program for controlling a sound device mounted on a vehicle and reproducing sound data, the sound device comprising a storage means for storing sound data and a plurality of recording / playback operation elements, by a computer In
One of the plurality of recording / playback controls is operated during the input of the voice data, the voice data is already stored in the storage area corresponding to the operated recording / playback control, and a predetermined instruction operation is performed. If done , the audio data of a plurality of songs recorded on the audio data recording medium being input are sequentially compressed while being reproduced, and the audio data of all the songs stored in the audio data recording medium are supported Compressed data is generated , the compressed data is newly stored in a storage area corresponding to the operated recording / playback operation element, and the corresponding recording / playback operation element is stored in each storage area of the storage unit. Information indicating the above, the compressed data, and the related data corresponding to the compressed data are stored in association with each other ,
If any of the plurality of recording / playback controls is operated while no audio data is being input, the compressed data stored in the storage area corresponding to the operated recording / playback controls is sequentially read and decompressed. And then expanding the audio data and reproducing the expanded audio data in the same music order as that recorded on the audio data recording medium based on the related data stored in the storage area. program. Computer-readable recording medium characterized by recording the control program according to claim 1 0.

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