JPH0778410A - Audio signal recorder and audio device - Google Patents

Abstract

PURPOSE:To provide an audio signal recorder and an audio device capable of automatically selectively switching a source between an analog source and a digital source and recording a source signal including code information on a break of a recording content of a program number, etc. CONSTITUTION:Based on source kind specifying information supplied to a control information input/output terminal S, a sound recording source selection command 11a is outputted by a sound recording input selection control means 11, and the selection changeover of a sound recording source selection means 3 is controlled. By an automatic break information generation means 13, code information 13a on the break of the program number, etc., is generated based on information showing the break of the sound recording content supplied to the control information input/output terminal S, and the code information 13a on the break is recorded on a recording medium MD through a sub information generation/identification means 14 and a signal processing means 4b in a digital recording means 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio signal recording apparatus and an audio apparatus capable of selecting either one of two types of audio signals, an analog signal and a digital signal, for digital recording on a recording medium.
In particular, the device that supplies the signal to be recorded (source signal) supplies the source type specification information (type of analog / digital signal) to the audio signal recording device to automatically select the source signal, or supply the source signal. The present invention relates to an audio signal recording apparatus and an audio apparatus capable of supplying information indicating a delimiter of recorded contents to an audio signal recording apparatus from a device to record a source signal including code information related to a delimiter such as a song number.

[0002]

2. Description of the Related Art FIG. 9 is a block diagram of a conventional audio signal recording apparatus. The conventional audio signal recording device 200 includes a recording source selection switch 201. The user selects the recording source selection switch 2 according to the type (analog / digital) of the signal (source) to be recorded.
The source selection operation unit 201a such as the knob 01 is operated to switch manually.

When the recording source selection switch 201 is switched to the analog side shown by the dotted line, a digital signal 202a obtained by A / D converting the analog source signal supplied to the analog input terminal A-IN by the A / D converter 202 is obtained. It is supplied to the digital recording means 203. The digital signal 201b selected by the recording source selection switch 201 is compression-encoded by the encoding means 204a in the signal processing means 204 and converted into a predetermined format, for example, a recording medium such as a magneto-optical disk drive device. Drive device 20
5 and is recorded on the recording medium MD mounted on the recording medium driving device 205. When the recording source selection switch 201 is switched to the digital side indicated by the solid line, the digital signal 206 supplied to the digital input terminal D-IN is directly encoded via the selection switch 201.
is supplied to a.

The signal read from the recording medium MD is decoded into the original digital signal 207 by the decoding means 204b, converted into an analog signal by the D / A converter 208, amplified by the amplifier 209, and analog output terminal. It is output to A-OUT.

[0005]

However, since the conventional audio signal recording apparatus is configured to manually switch the recording source, the desired recording may not be possible due to an operation error such as forgetting to switch. Further, when it is desired to automatically record the digital signal which is the reproduction output of the compact disc after timer recording the analog signal with the reception output of FM broadcasting, this cannot be dealt with. Therefore, there has been a demand for an automatic switching function of recording sources.

Further, the analog signal output or the digital signal output of the compact disc reproducing device is supplied to the analog signal input or the digital signal input of the audio reproducing device to obtain a plurality of songs recorded on the compact disc in succession. When a reproduction signal is recorded by an audio signal recording device, it is not possible to automatically multiplex and record the code information relating to the breaks in the song number information and the like, so that, for example, five songs recorded continuously become one song unit. Will end up.
For this reason, it is not possible to find the beginning of each song during playback.

The present invention has been made to solve the above problems, and a first object thereof is to provide an audio signal recording device and an audio device capable of automatically performing selective switching between an analog source and a digital source. To do. A second object of the present invention is to provide an audio signal recording device and an audio device capable of recording a source signal including code information relating to breaks of recorded contents such as song numbers.

[0008]

To solve the above problems, an audio signal recording apparatus according to a first aspect of the present invention includes an A / D converter for converting an analog input signal supplied to an analog input terminal into a digital signal, and Recording source selection means for selecting either one of the digital signal converted by the A / D converter and the digital input signal supplied to the digital input terminal, and the digital signal selected by the recording source selection means are recorded. Based on the digital recording means for recording on the medium and the source type designation information supplied to the control information input terminal, it is determined whether the signal to be recorded is an analog input signal or a digital input signal, and based on the determination result. Automatically controls the selection of the recording source selection means, and if the source type designation information is not supplied, the recording source manual designation Characterized by comprising a recording input selection control means for selecting a specified recording source in.

An audio signal recording apparatus according to a second aspect of the present invention comprises an automatic delimiter information generating means for generating code information relating to a delimiter based on information indicating a delimiter of recorded contents supplied to a control information input terminal. Characterize.

An audio apparatus according to a third aspect supplies control information to an audio signal recording apparatus, which supplies an audio signal to be recorded to the audio signal recording apparatus, and also supplies information indicating a boundary of contents of the supplied audio signal to the audio signal recording apparatus. A source side audio device having a supply means, a delimiter information automatic generation means for generating code information relating to the delimiter based on information indicating a delimiter of the contents of the audio signal supplied from the source side audio device, and the delimiter information An audio signal recording device comprising an encoding means for converting the audio signal into a predetermined recording format including the code information relating to the delimiter generated by the automatic generation means and supplying the audio signal to the digital recording means. .

According to a fourth aspect of the present invention, there is provided an audio apparatus, which comprises a source-side audio device for outputting a digital composite signal in which main information which is digital audio information and sub-information including at least music number information are multiplexed, and a digital composite signal. A signal is input, information on a break of the content to be recorded is generated based on the information on the track number included in the sub information, and the information on the generated break and the main information are converted into a predetermined recording format. And an audio signal recording device for recording on a recording medium.

An audio signal recording apparatus according to a fifth aspect is an audio signal recording apparatus which receives a digital composite signal in which main information and sub information, which are digital audio information, are multiplexed in a predetermined format as an input. Signal decomposing means for decomposing the composite signal into main information and sub information, sub information processing means for extracting necessary information from the sub information and adding new sub information as necessary, and compressing the main information Signal converting means for multiplexing the compressed output of the compressing means and the output of the sub-information processing means in a new format, and the output signal from the signal converting means to a recording medium. A recording medium driving device for recording is provided.

[0013]

The audio signal recording apparatus according to claim 1 is a recording apparatus for determining whether the signal to be recorded is an analog input signal or a digital input signal based on the source type designation information supplied to the control information input terminal. Since the input selection control means is provided, the recording source is automatically selected by switching the selection of the recording source selection means based on the judgment output of the recording input selection control means.

Further, since the recording input selection control means is configured to give priority to the source type designation information, and when the source type designation information is not supplied, the recording source designated by the recording source manual designation means is selected. Even if the source signal supply device side does not have the function of transmitting the source type designation information, the source can be manually selected. When the source selection information is supplied, it is prioritized, so it is not necessary to provide a new changeover switch such as automatic / manual source changeover, a source selection operation mode designating unit, or the like.

Since the audio signal recording apparatus according to the second aspect is provided with the delimiter information automatic generation means, the delimiter such as the track number is based on the information indicating the delimiter of the recorded contents supplied to the control information input terminal. Code information can be generated. Therefore, by recording the code information related to this division, it is possible to perform the beginning of the music or the like at the time of reproduction.

Since the audio device according to claim 3 is provided with the control information supplying means for supplying the audio signal recording device with the information indicating the delimiter of the content of the audio signal to the audio device on the source side, the audio signal recording device side delimits the audio signal. It is possible to generate code information related to a delimiter based on the information indicating, and digitally record the code information related to the delimiter. Therefore, it is possible to find the beginning of a song during reproduction.

According to a fourth aspect of the present invention, an audio device supplies a digital composite signal from an audio device on the source side to the audio signal recording device, and the audio signal recording device separates the audio signal recording device based on the information on the track number included in the sub information. Since such information is generated and recorded in the recording medium in a predetermined format including the information on the generated break, the information on the break from the song number can be automatically recorded.

An audio signal recording apparatus according to a fifth aspect of the present invention comprises a signal converting means for converting a digital composite signal multiplexed in a predetermined format such as a compact disc or a digital cassette tape into a new format. It can be recorded including additional information such as the song number.

[0019]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of an audio signal recording device according to claims 1 to 3. The audio signal recording apparatus 1 according to the present invention converts an analog signal A supplied to an analog input terminal A-IN into a digital signal A.
An A / D converter 2, a recording source selection means 3 for selecting either the digital signal 2a converted by the A / D converter 2 or the digital signal D supplied to the digital input terminal D-IN, Digital recording means 4 and a digital output terminal D-OUT for supplying the reproduced digital signal 4h output from the digital recording means 4 to another device.
And D for converting the reproduced digital signal 4h into an analog signal
The A / A converter 6, the output terminal A-OUT of the analog signal 6a converted by the D / A converter 6, and either of the signals supplied to the analog input terminal A-IN or the digital input terminal D-IN. A recording source manual designating means 7 for manually designating whether or not to record, a transmission / reception circuit 8, an operation input section 9A provided with various operation input keys and the like, and an operation state of the audio signal recording apparatus 1 are displayed. It is composed of a status display unit 9B having various kinds of indicators and an overall control unit 10 constructed by using a microcomputer system. Reference symbol S is an input and output terminal for control information.

The digital recording means 4 is constructed so that recording and reproduction can be performed, and comprises a compression / expansion means 4a, a signal processing means 4b, and a recording medium driving device 4c. In the recording (recording) state, the compression / expansion means 4a compresses the digital signal 3a selected by the recording source selection means 3 by a predetermined compression encoding method, and the compressed digital signal 4a.
d is supplied to the signal processing means 4b. The signal processing unit 4b multiplexes the digital signal 4d and the sub information SUB (W) supplied from the overall control unit 10 based on a predetermined recording format, and the multiplexed signal 4e is recorded medium driving unit 4c.
Supply to. The recording medium driving means 4c is composed of a magneto-optical disk driving device or the like, and records the signal 4e converted into a predetermined recording format on a recording medium MD such as a magneto-optical disk mounted on the driving device. In the playback state,
The signal processing means 4b decomposes the signal 4f read from the recording medium driving means 4c into a digital signal 4g which is the main information and the sub information SUB (R) and outputs it. Compression / expansion means 4a
Decompresses the digital signal 4g which is the main information and decodes it to the original digital signal 4h.

The overall control unit 10 includes a recording input selection control unit 11, a control information receiving unit 12, a section information automatic generation unit 13, a sub information generation / identification unit 14, an operation control unit 15, and a control information transmission. And means 16.

The control information receiving means 12 monitors the control information SR consisting of, for example, an 8-bit serial signal supplied from another audio device via the transmission / reception circuit 8, and when detecting the preset source type designation information SS, It is determined whether the source type designation information SS designates an analog source or a digital source, and the determination result 1
2a is supplied to the recording input selection control means 11.

Upon receiving the discrimination result 12a of the source type designation information SS, the recording input selection control means 11 gives priority to the discrimination result 12a of the source type designation information over the recording source designation designated by the recording source manual designation means 7. Then, the recording source selection command 11a is output based on the determination result 12a. The recording source selection means 3 is constituted by, for example, an analog switch or a relay using a semiconductor switching element so as to perform a selection switching operation based on the recording source selection command 11a.

The source side audio device 20 described later is
When the supply of the source signal to be recorded is completed, the recording end information or the recording source selection release information SC is supplied. When the control information receiving means 12 detects this recording end information or recording source selection release information SC,
The recording input selecting means 11 is supplied with a signal 12a for canceling the priority process based on the previously supplied source type designation information discrimination result 12a. As a result, the recording input selection control means 11 outputs the recording source selection command 11a designated by the recording source manual designation means 7. Therefore, in the state where the priority process is canceled, the analog source / digital source can be selectively switched by operating the recording source manual designating means 7.

With the above configuration, the audio signal recording apparatus 1 according to claim 1 automatically selects analog / digital of the recording source based on the source type designation information SS supplied to the control information input / output terminal S. To be done. Also, when the control information cable K (see FIG. 2) described later is not connected to the control information input / output terminal S (when this audio signal recording device is used outdoors), the source audio device sets the source type designation information SS. If the recording source is not provided, the recording source can be selected by operating the recording source manual designating means 7. Since the recording input selection control means 11 is configured to preferentially process the source type designation information SS when it is received, it is not necessary to switch the operation mode between manual operation and automatic switching.

When the control information receiving means 12 detects the information SK indicating the break of the recorded contents in the control information SR received via the transmission / reception circuit 8, it supplies the break detection output 12b to the break information automatic generating means 13. Upon receiving the delimiter detection output 12b, the delimiter information automatic generation unit 13 generates, for example, code information indicating that the tune number is No. 1, and supplies the generated code information 13a to the sub information generation / identification unit 14. The code information 13a is also supplied to the operation control means 15. The delimiter information automatic generation means 13 is provided with a counter means, and advances the counter value each time it receives the delimiter detection output 12b, and outputs the stepped chord information (for example, song number) 13a. When the operation control means 15 gives the information 15a relating to the initial value of the song number, the initial value is preset in the counter means and the first delimiter detection output 12 is given.
In b, the code information 13a relating to the preset value is output, and thereafter, the step is performed from the preset value.

When the sub-information generating / identifying means 14 receives a command from the operation control means 15 via the signal line 15b to the effect that it is in a recording state, the sub-information automatic generation means 13 supplies the code information 13a, And the signal line 15b
Other sub information supplied via the sub-information is supplied to the signal processing means 4b as sub information SUB (W) to be recorded in the recording medium MD. Further, when the sub information generating / identifying means 14 receives the command indicating that the sub information is in the reproducing state, the sub information generating / identifying means 14 monitors the sub information SUB (R) output from the signal processing means 4b, and, for example, the number of the music being reproduced. Necessary information such as is supplied to the operation control means 15 via the signal line 15c.

When the input operation for setting the initial value such as the song number is performed from the operation input section 9A, the operation control means 15 supplies the information 15a related to the initial value to the delimiter information automatic generation means 13. The operation control means 15 includes the delimiter information automatic generation means 13 to the sub information generation / identification means 14.
It is also possible to monitor the chord information 13a supplied to the status display section 9B to display the number of the currently recorded music piece and the like. With such a configuration, it is possible to display the recording progress state such as what song is currently recorded even in the recording mode in which the delimiter information is automatically added.

The operation control means 15 includes an operation input section 9
When the operation input for instructing the insertion of the delimiter information is given from A, the delimiter insertion request command 15d is supplied to the delimiter information automatic generation means 13 so that the tune number is incremented. Therefore, when the information SK indicating the break is not supplied from the audio device on the source side, the user can manually insert the break. Since the step of the music number is performed by the counter means in the automatic delimiter information generation means 13, it is only necessary to specify the demarcation without inputting the music number itself.

With the above configuration, the audio signal recording apparatus 1 according to the second aspect of the invention, based on the information SK indicating the delimiter supplied to the control information input / output terminal S, for example, code relating to the demarcation of the song number or the like. The information 13a can be automatically generated and recorded in the recording medium MD.

The audio signal recording apparatus 1 is
The configuration is such that operation control can be performed from another audio device connected via a control information cable K described later.
Therefore, the control information receiving means 12 supplies various operation requests 12c for the audio signal recording apparatus 1 to the operation control means 15 from among various control information SR received via the transmission / reception circuit 8. The operation control means 15 controls various operations such as reproduction, recording, and pause of the recording medium driving device 4c via the signal line 15e based on the received various operation requests 12c. Further, the operation control means 15 sends information relating to the current operation state to the control information transmission means 16 and the transmission / reception circuit 8 based on various state signals supplied from the recording medium driving device 15 side via the signal line 15f. To another audio device and send back request acceptance completion information for the operation request 12c from the other audio device, or information regarding request refusal, for example, that the recording request cannot be satisfied because the recording medium MD is not mounted. Is transmitted to another audio device. Reference numeral ST is control information sent from the audio device 1.

When a reproduction request is input from the operation input unit 9A, the operation control means 15 controls the audio signal recording device 1 to a reproduction state and also supplies other audio equipment, for example, a main amplifier power source. For example, it sends a command requesting to turn on, or sends to another audio device a command to select and reproduce a signal output from the analog output terminal A-OUT or the digital output terminal D-OUT of this audio device 1. By doing so, other audio devices can be remotely controlled. As a matter of course, the operation control means 15 controls the control information SR,
In addition to the cooperative operation with other audio devices using ST, all the operations of the audio signal recording device 1 are controlled based on the operation input from the operation input unit 9A, and
It is configured to display the status.

In the audio signal recording apparatus 1 shown in FIG. 1, the audio signal including the code information 13a relating to the break generated by the break information generating means 13 is converted into a predetermined recording format to be converted into digital recording means. The encoding means to be supplied to 4 is the delimiter information automatic generation means 1
3, the sub information generating / identifying means 14, and the signal processing means 4b in the digital recording means 4.

FIG. 2 is a circuit configuration diagram showing a specific example of the transmission / reception circuit. C1 is a capacitor for removing high frequency noise, R
Reference numeral 1 is a base resistor, R2 is a base-emitter resistor, Q is an NPN transistor for converting a received signal into a logic level, and a pull-up resistor R3 is connected to its collector. R4 is a current limiting resistor, which prevents an overcurrent from flowing even if the control information cable K is short-circuited. The received signal of D1 is the control information transmitting means 1
It is a diode for blocking the supply to the 6 side. For example, serial 8-bit code information to be transmitted / received has upper 3 bits as a device code designating a device type, and lower 5 bits as a control code indicating an operation request or a device state.

In this embodiment, the source type designation information SS, is used by utilizing asynchronous bit serial type data communication.
The configuration has been shown in which information SK, etc. indicating the breaks in the recorded contents is sent and received, but it operates in cooperation with other audio equipment (remote control).
If it is not necessary to perform, the pulse width of the type information SS, the information SK indicating the division of the recorded contents, etc. (for example, 50 ms for analog source designation, 40 ms for digital source designation, 20 ms for source designation cancellation, The pulse width measuring means and the voltage detecting means are signals using a break (10 milliseconds) and a voltage (for example, analog source designation is 5 volt, digital source designation is 4 volt, source designation cancellation is 3 volt, break is 2 volt). You may make it detect each information using.

FIG. 3 is a block diagram showing a specific example of the source side audio equipment constituting the audio apparatus according to the third aspect. This source side audio device 20
A tuner unit 30, an amplifier unit 40, a compact disc reproducing unit 50, a cassette tape recording / reproducing unit 60, a D
/ A converter 21. Each part 30, 40, 50, 6
Microcomputers 31, 41, 5 for controlling the operation of 0 respectively
1, 61 are transmitting / receiving circuits 3 having the circuit configuration shown in FIG.
2, 42, 52 and 62 are connected via the control bus A-BUS for audio equipment in a multi-drop manner, and the control information input / output terminal 20S is used to connect to the audio signal recording apparatus 1 shown in FIG. It is configured so that it can be done.

The tuner analog signal 33, which is the broadcast reception output of the tuner section 30, is supplied to the reproduction signal selection circuit 43 in the amplifier section 40. The CD analog signal 54 output via the D / A converter 53 in the compact disc reproducing section 50 is supplied to the reproduction signal selecting circuit 43.
The tape analog signal 64 output from the reproducing amplifier 63 in the cassette tape recording / reproducing unit 60 is supplied to the reproducing signal selecting circuit 42. External analog input terminal GA-IN
The external analog signal 22 is supplied to the reproduction signal selection circuit 43. External digital input terminal GD-IN
The external digital signal 23 supplied to the D / A converter 21.
It is supplied to the reproduction signal selection circuit 43 after being converted into the analog signal 24 via.

The reproduction signal selection circuit 43 supplies the analog signal 42a selected based on the reproduction source selection command 41a supplied from the microcomputer 41 of the amplifier section 40 to the power amplification circuit 45 via the buffer amplification circuit 44. The speaker system (not shown) is driven as necessary. The analog signal 42a selected by the reproduction signal selection circuit 43 is supplied to the recording amplifier 65 in the cassette tape recording / reproducing unit 60 via the buffer amplification circuit 44 as the cassette analog recording signal 46, and the buffer amplification circuit 44 is also provided. Is supplied as an external analog output signal 47 to the external analog output terminal GA-OUT. For this reason, the buffer amplifier circuit 44 is provided with three sets of buffer amplifiers and the like to which the analog signal 42a is input.

Further, the CD digital signal 56 taken out by the pickup 54 in the compact disc reproducing unit 50, demodulated by the signal processing circuit 55 and outputted is D / A.
It is supplied to the converter 53 and is also supplied to the external digital output terminal GD-OUT as an external digital output signal.

The microcomputer 41 in the amplifier section 40 outputs the tuner analog signal 33, which is the broadcast reception output of the tuner 30, or the cassette reproduction analog signal 64 from the cassette tape recording / reproducing section 60, based on an operation input from an operation section (not shown). When the selection is made, and when the reproduction request of the compact disc reproduction unit 50 is made and a special operation for performing external recording with an analog signal is performed, the source type designation information SS that designates the analog source is transmitted / received by the transmission / reception circuit 42. Control bus A-BUS for audio equipment via
It is configured to supply to. Further, when the reproduction request of the compact disc reproducing unit 50 is made and a special operation for external recording with an analog signal is not performed, the source type designation information SS for designating the digital source is transmitted via the transmission / reception circuit 42 as audio data. Device control bus A-BU
It is configured to supply to S.

Therefore, when a broadcast reception by the tuner unit 30 or a cassette tape reproduction by the cassette tape recording / reproducing unit 60 is requested from an operation unit (not shown), the tuner analog signal 33 or the cassette tape reproduction analog signal 64 is the reproduction signal selection circuit 43. The selected signal 42a is supplied to the external analog output terminal GA-OUT via the buffer amplifier circuit 44 and to the audio signal recording device 1 shown in FIG. 1 via the control information input / output terminal 20S. Source type designation information SS that designates an analog source is supplied. Therefore, the audio signal recording device 1 shown in FIG. 1 selects the analog signal supplied to the analog input terminal A-IN as the recording source.

Further, when the source side audio device 20 shown in FIG. 3 is requested to reproduce a compact disc (CD), the CD analog signal converted by the D / A converter 53 in the compact disc reproducing section 50. 57 is selected by the reproduction signal selection circuit 43 and supplied to the external analog output terminal GA-OUT via the buffer amplification circuit 44. However, the CD digital signal 56 output from the signal processing circuit 55 in the compact disc reproduction unit 50 is Since it is supplied to the external digital output terminal DA-OUT via a buffer circuit or the like (not shown), the analog / digital two-system external output is supplied.

Therefore, this source side audio device 20
Then, when reproduction of the compact disc is requested, the microcomputer 41 in the amplifier unit 30 sends out the source type designation information SS designating a digital source as a general rule, and when a special operation is performed, an analog source designating source is designated. The type designation information SS can be supplied. Therefore, when the audio signal recording device 1 shown in FIG. 1 is connected to the source-side audio device 20 to record a reproduction signal of a compact disc (CD), in principle, a digital source is used for recording. It is possible to perform high-quality recording without deterioration of sound quality without going through the two conversions of the D / A converter 53 in the compact disc reproducing unit 50 and the A / D converter 2 shown in FIG. . If you want to record with an analog source, an input operation procedure for that purpose is prepared, so you can automatically select the analog source.

As described above, the audio signal recording apparatus 1 shown in FIG. 1 and the source side audio equipment 20 shown in FIG.
In the audio device including the above, since the source side audio device 20 sends source type designation information SS indicating whether the source to be recorded is an analog signal or a digital signal to the audio signal recording device 1, the audio signal Even if both the analog signal and the digital signal are supplied, the recording device 1 side can automatically select the source to be recorded based on the source type designation information SS.

Next, an audio device according to claim 3 will be described. The compact disc reproducing section 50 is provided with a delimiter detecting means 58. This break detection means 58
Monitors the sub information 55a output from the signal processing circuit 55, and outputs a delimiter detection output 58a when it detects that the chord information related to the song number contained in the sub information 55a has changed. is doing. The microcomputer 51 in the compact disc reproducing unit 50 outputs the delimiter detection output 5
Upon receiving 8a, for example, 8-bit code information SK indicating a break is generated, and the information SK indicating this break is transmitted via the transmission / reception circuit 52. Information SK indicating this break
Is supplied to the audio signal recording device 1 shown in FIG. 1 via the control information input / output terminal 20S, so that the audio signal recording device 1 generates, for example, song number information based on the information SK indicating this division, It can be recorded in the recording medium MD together with the source signal (audio signal) to be recorded.

In the case where the microcomputer 41 in the amplifier section 40 intensively transmits / receives the control information SR and ST to / from the audio signal recording device 1 through the control information input / output terminal 20S, a delimiter detection output is output. 58a is supplied to the microcomputer 41 in the amplifier section 40.

During reproduction of a compact disc (CD) and reproduction of a digital cassette tape (DCC) (not shown), the sub information recorded in each recording medium is monitored to reliably detect breaks in music. However, in reproducing the cassette tape, since the sub information and the like are not recorded, it is impossible to detect the break of the music. Therefore, in this embodiment, a silence detecting means 66 is provided in the cassette tape recording / reproducing section 60 so as to detect a music break. The silence detecting means 66 monitors the signal level of the cassette reproduction analog signal 64 which is the output of the reproduction amplifier 63, and when the state below the preset silence determination level continues for a preset period of time, the silence detection signal 66a.
Is output.

Therefore, in the silence detecting means 66, a rectifying circuit for rectifying an AC signal, a low-pass filter circuit having a predetermined time constant for substantially smoothing the rectified output, an output of the low-pass filter circuit, and A comparison circuit for comparing the set reference potential to detect that the cassette reproduction analog signal 64 is below the silence determination level, and a timer circuit for counting the time during which the output of the comparison circuit is in the silence detection state. , Is configured to perform silence detection.

Microcomputer 61 receiving silence detection signal 66a
Sends the information SK indicating the break through the transmission / reception circuit 62. The silence detection signal 66a may be supplied to the microcomputer 41 in the amplifier section 40, and the microcomputer 41 may send the information SK indicating a break.

With the above configuration, the audio apparatus according to claim 3 is configured to supply the information SK indicating the break of the audio signal from the source side audio device 20 side to the audio signal recording apparatus 1 side. On the recording device side, the code information 13a related to the break can be generated based on the information SK indicating the break, and can be digitally recorded on the recording medium MD including the code information 13a related to the break. Therefore, it is possible to find the beginning of a song during reproduction.

In the audio device 20 on the source side shown in FIG. 3, information S relating to the designation of the source to be recorded.
The control information supply means for supplying S is composed of the microcomputer 41 and the transmission / reception circuit 42 in the amplifier section 40. Further, the control information supplying means for supplying the information SK indicating the break of the content of the audio signal is composed of the break detecting means 58, the microcomputer 51 and the transmitting / receiving circuit 52 for the compact disc reproducing section 50 and the cassette tape reproducing section 60 for the cassette tape reproducing section 60. It is composed of a silence detecting means 66, a microcomputer 61 and a transmitting / receiving circuit 62.

FIG. 4 is a block diagram of an audio device in which the source audio device and the audio signal recording device are connected. The audio device 70 includes the source-side audio device 20 shown in FIG. 3 and the audio signal recording device 1 shown in FIG. The external analog output terminal GA-OUT of the source side audio device 20 is connected to the analog input terminal A-IN of the audio signal recording device 1 via the analog signal cable 71, and the external digital output terminal GD-OUT of the source side audio device 20 is digital. Each of them is connected to a digital input terminal D-IN of the audio signal recording device 1 via a signal cable 72.

The analog output terminal A-OUT of the audio signal recording device 1 is connected via the analog signal cable 73 to the external analog input terminal GA of the audio device 20 on the source side.
-IN, the digital output terminal D-OUT of the audio signal recording device 1 is connected to the external digital input terminal GD- of the source audio device 20 via the digital signal cable 74.
Connected to IN respectively. The control information input / output terminal 20S of the source audio device 20 and the control information input / output terminal S of the audio signal recording device 1 are connected via a control information cable K.

Optical fibers may be used for the digital signal cables 72 and 74, and an optical signal transmitting / receiving circuit may be provided in the source side audio equipment 20 and the audio signal recording apparatus 1, respectively. In addition, without using the analog signal cables 71 and 73, the source audio device 20
In addition, the audio signal recording device 1 may be provided with transmitters / receivers of weak radio waves to wirelessly transmit / receive analog audio signals. Instead of using the control information cable K, the source-side audio device 20 and the audio signal recording device 1 may be provided with infrared or weak radio wave transmitters / receivers respectively to wirelessly transmit / receive the control information SR, SK.

Since the audio device 70 is configured to send and receive control information between the audio signal recording device 1 and the source-side audio device 20 via the control information cable K, the audio signal recording device 1 operates as follows. It is also possible to control the source audio device 20 to a cassette tape recording state by transmitting control information relating to a recording command to the cassette tape from the audio signal recording device 1 on the source side. In this way, since the control information is transmitted and received between the audio signal recording device 1 and the source-side audio device 20, the cooperation operation of both devices can be performed by one of the devices. An audio device with good performance can be provided.

FIG. 5 is a block diagram of an audio signal recording apparatus which constitutes an audio apparatus according to a fourth aspect. The audio signal recording device 71 has an input terminal MD for a digital composite signal MD in which main information and sub information are multiplexed.
-With IN. The digital composite signal MD is separated by the signal separation means 72 into main information 72a and sub information 72b which are digital audio information. The main information 72a is supplied to the digital signal input side of the recording source selection means 3, and
The recording input selection control means 73 is supplied. Sub information 72b
Is supplied to the delimiter information automatic generation means 74. The signal 4f read from the recording medium driving means 4c in the reproducing state is supplied to the output terminal MD-OUT of the digital composite signal via a buffer circuit or the like not shown.

The recording input selection control means 73 controls the main information 72.
When it detects that a is supplied, it outputs a command 73a for selecting a digital source, and outputs an analog source selection command 73a when the main information 72a is not supplied. When the information specifying the digital source is multiplexed and supplied in the sub information 72b, the recording input selection control means 73 monitors the sub information 72b and switches the recording source. Good.

The delimiter information automatic generation means 74 uses the sub information 7
The code information relating to the song number contained in 2b is monitored, and it is determined that the recording content is delimited based on the change of this code information. Then, the music piece counter means in the automatic division information generation means 74 is stepped up, and the code information 74a relating to the music piece number is generated as the sub information generation / identification means 14.
Supply to. In addition, when the information related to the song number supplied from the source device side is directly recorded on the recording medium MD,
The delimiter information automatic generation means 74 is configured to relay the information related to the song number to the sub information generation / identification means 14.

FIG. 6 is a block diagram of a source-side audio equipment which constitutes an audio apparatus according to a fourth aspect. The source side audio device 27 is different from that shown in FIG. 3 in the configuration of the compact disc reproducing unit 80.
The compact disc reproducing section 80 has a selecting means 82 for selecting one of the CD reproducing signal 54a taken out by the pickup 54 and the external digital composite input signal GMD supplied to the external digital composite input terminal GMD-IN. And a signal 82a selected by the selecting means 82.
Is supplied to the signal processing means 83. Further, the CD reproduction signal 54a is supplied to the external digital composite output terminal GMD-OUT via a buffer circuit or the like not shown.

When the CD reproduction request is received through the transmission / reception circuit 52, the microcomputer 81 outputs a CD reproduction selection command 81a to switch the selection means 82 to the dotted line side in the figure, and when the external digital composite signal reproduction request is received. An external digital input selection command 81a is output to switch the selection means 82 to the solid line side in the figure. The signal processing means 83 is configured so as to be compatible with signals of two types of formats, that is, a compact disc signal format and an external digital composite signal GMD format, and the processing mode is set based on the selection command 81a. Then, the signal processing means 83 separates the signal 82a supplied from the selecting means 82 into main information and sub information, and supplies the main information 83a to the D / A converter 53. Further, the separated sub information 83b is supplied to the microcomputer 81. The microcomputer 81 causes the display device (not shown) to display the song number or the like being reproduced based on the sub information 83b.

With the above configuration, when a compact disc (CD) is reproduced from the compact disc reproducing section 80, a digital composite in which sub information such as information relating to the song number and main information which is audio information are multiplexed. Signal 54
a is supplied to the audio signal recording device 71 shown in FIG. On the audio signal recording device 71 side shown in FIG.
Since the digital composite signal MDI including the main information is supplied, the recording source is automatically switched to the digital side. Also,
The code information 74a relating to the music number is generated based on the information relating to the music number included in the sub information, and the sub information generation /
By supplying the digital recording means 4 through the identification means 14, the code information relating to the music number can be recorded on the recording medium MD.

FIG. 7 is a block diagram of another audio device on the source side according to the fourth aspect. This source-side audio device 29 has an external digital composite input terminal HMD-I.
Using the N and the external digital composite output terminal HMD-OUT, it is possible to transmit and receive recording signals and reproduction signals to and from the audio signal recording device shown in FIG. 8 as well as to transmit and receive various control information. Is. Further, the external digital composite output signal HMDO and the external digital composite input signal HMDI have the same signal format.

When the reproducing command 91a for the compact disc is supplied from the microcomputer 91, the signal processing / sub-information controlling means 93 extracts the main information 93a from the CD reproducing signal 54a taken out by the pickup 54 and the D / A converter. The CD reproduction signal 54a in which the main information and the sub information are multiplexed in a predetermined format is supplied to the external digital composite output terminal HMD-OUT as an external digital composite output signal HMD in principle.

External digital composite output terminal HMD-OUT
When control information 91b such as various operation requests for an audio device (for example, the audio signal recording device shown in FIG. 9) connected via the microcomputer 91 is supplied from the microcomputer 91, the signal processing / sub information control means 93 Sub-information that does not need to be supplied to other devices is removed from the information, and a preset control information code is inserted at the removed position. This control information may include information designating selection of an analog source / digital source. In addition,
Even when the compact disc is not being reproduced, when the control information 91b to be transmitted is supplied, the signal processing / sub-information control means 93 is configured to transmit the corresponding control information code.

In the reproducing state of the compact disc, the signal processing / sub-information controlling means 93 monitors the sub-information in the CD reproduction signal 54a. It is supplied to the microcomputer 91 via the. The microcomputer 91 displays a song number and the like on a display device (not shown) or the like as necessary.

The signal processing / sub-information control means 93 constantly monitors the external digital composite signal HMDI supplied to the external digital composite input terminal HMD-IN, and controls the source-side audio device 29 in the sub-information. When the information is detected, the control information is supplied to the microcomputer 91 via the signal line 91d. The microcomputer 91 sends the received control information to the audio device control bus A-BUS via the transmission / reception circuit 52. When the microcomputer 91 receives control information for the audio signal recording device shown in FIG. 9 via the audio device control bus A-BUS and the transmission / reception circuit 52, the control information is sent to the signal processing / sub information control means 93. It is configured to supply.

When the reproduction command 91e for the external digital composite input signal HMDI is received from the microcomputer 91, the signal processing / sub-information control means 93 causes the external digital composite input signal HMDI.
The main information is extracted from the sub-information and supplied to the D / A converter 53, and when the information related to the track number included in the sub-information is detected, the main information is extracted through the signal line 91c to the microcomputer 9
Supply to 1. The microcomputer 91 displays a song number or the like reproduced by an external device on a display device (not shown) or the like as necessary. Further, the signal processing / sub information control means 93
When the control information is detected in the sub information of the external digital composite input signal HMDI, the control information is supplied to the microcomputer 91. When reproducing the external digital composite input signal HMDI, the microcomputer 4 of the amplifier section 40 is used.
1 is configured to output a reproduction source selection command 41a for selecting a CD analog signal indicated by reference numeral 57.

The microcomputer 91 which has obtained the information relating to the silence detection during the reproduction of the cassette tape through the audio device control bus A-BUS supplies the signal processing / sub information control means 93 with the information 91k relating to the break. Alternatively, the sub information may be used to send the information regarding the break to the audio signal recording apparatus 101 shown in FIG.

FIG. 8 is a block diagram of an audio signal recording apparatus according to the fifth aspect. The digital recording means 140 of the audio signal recording apparatus 101 is composed of a signal converting means 110, a signal reconverting means 120, and a recording medium driving device 4c. Audio signal recording device 101
The operation control means 150 for controlling the overall operation of the above is constructed using a microcomputer system.

Signal decomposing means 11 in signal converting means 110
1 decomposes the digital composite signal HMD supplied to the digital composite signal input terminal HMD-IN into main information 111a and sub information 111b. This decomposition is performed based on a rule preset according to the format of the supplied digital composite signal HMD. Main information 111a decomposed
Is supplied to the signal compression means 112 via the recording source selection means 3. The signal compression means 112 compresses the digital audio signal 3 a selected by the recording source selection means 3 and compresses the compressed audio signal 112 a into the signal multiplexing means 1.
13 is supplied. The decomposed sub information 111b is supplied to the sub information processing unit 114.

The sub-information processing means 114 monitors the code information relating to the song number contained in the sub-information, and if there is a change in the code information, it judges that it is a song break and records it on the recording medium MD. The song number to be incremented is incremented, and code information relating to the incremented song number is supplied to the signal multiplexing means 113. When the operation control means 150 supplies the initial value data 150a of the song number, the step advances from the initial value, and when the operation control means 150 supplies the information insertion request 150b relating to the break, the insertion request. 150
The signal multiplexing means 1 is provided with the code information relating to the track number that has been stepped up according to b and the other sub information 114a to be recorded on the recording medium.
13 is supplied.

Further, the sub-information processing means 114 monitors the control information contained in the sub-information. When the source selection designation information SSM is detected, the operation control means detects the detected source selection designation information SSM. Supply to 150. The operation control means 150 uses the supplied source selection designation information SSM.
Based on the above, the recording source selection command 150c is output to control the selection switching of the recording source selection means 3. Further, when the sub-information processing unit 114 detects various control information SRM contained in the sub-information, the detected control information SRM is detected.
Is supplied to the operation control means 150. Operation control means 150
Controls the operation of, for example, the recording medium driving device 4c based on the supplied control information SRM.

The signal multiplexing means 113 supplies the recording medium driving device 4c with the signal 4e obtained by multiplexing the compressed audio signal 112a and the processed sub-information 114a in the format for this audio signal recording device.

The signal reconversion means 120 is the signal separation means 1
21, a signal decompressing means 122, and a sub information processing means 123.
And signal synthesizing means 124. Signal separation means 12
1 decomposes the signal 4f reproduced by the recording medium driving device 4c into a compressed audio signal 121a and sub information 121b. The audio signal 121a is the signal expansion means 122.
Is supplied to the original audio signal and is expanded to the original audio signal, and the expanded audio signal 122a is supplied to the signal synthesizing means 124, D / A converted by the D / A converter 6, and output as an analog output signal 6a. Terminal A-
Supplied to OUT.

The sub-information processing means 123 uses the sub-information 121b.
Information relating to the song number or the like is extracted from the list, and the information 150d relating to the extracted song number or the like is supplied to the operation control means 150. The operation control means 150 causes the status display portion 9B to display the music title if necessary when the music number, music title information, etc. being reproduced are recorded and reproduced on the basis of the supplied information 150d relating to the music number and the like.

The sub information processing means 123 is the operation control means 1
When various control information STM to be supplied to the audio device 29 on the source side shown in FIG. 7 is supplied from 50, it is necessary to supply to the audio device 29 on the source side in the sub information other than the information related to the tune. The non-existing sub information is deleted, and the control code information corresponding to the control information STM is inserted in its place. Then, the sub information 123a including the control information STM is supplied to the signal synthesizing means 124.

The operation control means 150 operates when the operation control input section 9A inputs an operation to remotely operate the audio device on the source side or an operation input requesting a link operation with the audio signal recording device. Is configured to generate control information STM corresponding to. And
When the reply information to the transmitted control information STM is returned in the predetermined communication monitoring time by being multiplexed with the sub information, the operation control means 150 determines that the partner device can be controlled via the digital composite signal. Then, the control using the sub-information is continued, but when the reply information is not obtained even after the predetermined communication monitoring time has elapsed, the control mode via the transmission / reception circuit 8 and the control information cable K is set. ing.

The signal synthesizing means 124 synthesizes the decompressed audio signal 122a and the processed sub-information 123a in the same format as the digital composite signal HMD supplied to the digital composite input terminal HMD-IN and combines them. The HMO is supplied to the digital composite output terminal HMD-OUT.

Incidentally, in the case of the structure in which the information related to the tune contained in the digital composite input signal HMD is recorded on the recording medium MD without any change, the sub information processing means 114
It is not necessary to provide the above-mentioned counter means or the like, and it is sufficient to simply convert the format of the sub information.

When the control information is not multiplexed in the sub-information, it is necessary to provide the sub-information processing means 114 with means for detecting the control information and preventing the control information from being supplied to the signal multiplexing means 113. There is no. Further, when the control information is not multiplexed in the sub-information, the sub-information processing means 123 may be configured to simply format-convert the sub-information relating to the song number and the like and supply it to the signal synthesizing means 124. If the sub-information processing unit 114 and the sub-information processing unit 123 include information that does not need to be converted or re-converted in the decomposed or separated sub-information 111b and 121b,
It may be configured to delete them. Further, the sub-information processing unit 114 may be configured to insert information (not shown) indicating the recording address of the recording medium MD into the sub-information. In the case of a configuration in which the sub information is used to perform remote control with another audio device, the transmission / reception circuit 8 may not be provided.

With the above configuration, the audio signal recording device 101 according to the fifth aspect comprises the signal conversion means 110 for converting the digital composite signal supplied from another audio device into the format for this audio signal recording device. Therefore, the main information (audio information) and the sub information formatted for another audio device can be recorded in the recording medium MD. Further, the information related to the track number included in the digital composite signal can be recorded in the recording medium MD as it is, or can be changed as necessary, so that when the recording medium MD is reproduced, it is possible to find the beginning of the song. Can be done.

Also, the audio signal recording apparatus 101
Has a configuration in which the signal 4f reproduced from the recording medium MD is reconverted to the same signal as the format supplied to the digital composite input terminal HMD-IN and output, so that the external interface of the digital signal is unified. For example, if the format of the digital composite signal of a compact disc or a digital cassette tape is used, the digital signal HM output from the audio signal recording device 101 is used.
O can be reproduced by using a signal processing circuit of a compact disc reproducing device or a digital cassette tape recording / reproducing device. Further, by connecting the audio signal recording device 101 and the compact disc reproducing device or the digital cassette tape recording / reproducing device with a digital composite signal, the audio signal recording device 101 can be bidirectionally without D / A and A / D conversion. Since it is possible to record (for example, from the digital cassette tape to the recording medium MD and from the recording medium MD to the digital cassette tape in both directions), it is possible to record without deterioration of the sound quality, and at the same time, the sub information such as the song number and the song name is automatically recorded. It is possible to record it.

[0083]

According to the first aspect of the invention, the audio signal recording apparatus determines whether the signal to be recorded is an analog input signal or a digital input signal based on the source type designation information supplied to the control information input terminal. Since the recording input selection control means is provided, the recording source is automatically selected by switching the selection of the recording source selection means based on the judgment output of the recording input selection control means. As a result, there are no mistakes in source switching operation, and automatic recording using a timer and continuous recording of various analog / digital mixed sources such as radio, satellite broadcast receiver, cassette tape player, compact disc player, etc. Can respond.

Further, the recording input selection control means has a structure in which the source type designation information is given priority, and when the source type designation information is not supplied, the recording source designated by the recording source manual designation means is selected. Even when the signal supply device side does not have the function of transmitting the source type designation information, the source can be manually selected.
When the source selection information is supplied, it is prioritized, so it is not necessary to provide a new changeover switch such as automatic / manual source changeover, a source selection operation mode designating unit, or the like.

Since the audio signal recording apparatus according to the second aspect of the invention is provided with the delimiter information automatic generation means, the delimiter code information is generated based on the signal indicating the delimiter of the recorded contents supplied to the control information input terminal. be able to.
Therefore, by recording the code information related to this division, it is possible to perform the beginning of the music or the like at the time of reproduction.

Since the audio apparatus according to claim 3 is provided with the control information supplying means for supplying the audio signal recording apparatus with the information indicating the delimiter of the content of the audio signal to the audio device on the source side, the audio signal recording apparatus is supplied. It is possible to generate code information related to a break based on the information indicating the separated break, and digitally record the code information including the code information related to the break. Therefore, it is possible to find the beginning of a song during reproduction.

According to another aspect of the present invention, the audio device supplies a digital composite signal from the audio device on the source side to the audio signal recording device, and the audio signal recording device separates the audio signal recording device based on the information about the track number included in the sub information. Since such information is generated and recorded in the recording medium in a predetermined format including the information on the generated break, the information on the break from the song number can be automatically recorded.

Since the audio signal recording apparatus according to a fifth aspect of the present invention comprises signal converting means for converting a digital composite signal multiplexed in a predetermined format such as a compact disc or a digital cassette tape into a new format, for example, It can be recorded including additional information such as the song number. In addition, the source side audio equipment side which supplies the digital composite signal multiplexed in a predetermined format sends out the sub information including various operation request command information for the audio signal recording apparatus, and the audio signal recording apparatus side transmits the sub information. By detecting various operation request command information contained therein and performing control so that the operation state is based on the various operation request command information, remote control using digital composite signals and source side audio equipment The cooperation operation with the audio signal recording device becomes possible.

[Brief description of drawings]

1 is a block configuration diagram of an audio signal recording device according to claims 1 to 3;

FIG. 2 is a circuit configuration diagram showing a specific example of a transmission / reception circuit.

FIG. 3 is a block configuration diagram showing a specific example of a source-side audio device that constitutes the audio apparatus according to claim 3;

FIG. 4 is a configuration diagram of an audio device in which a source audio device and an audio signal recording device are connected.

FIG. 5 is a block configuration diagram of an audio signal recording device configuring the audio device according to claim 4;

FIG. 6 is a block configuration diagram of a source-side audio device that constitutes the audio apparatus according to claim 4;

FIG. 7 is a block configuration diagram of another audio device on the source side which constitutes the audio apparatus according to claim 4;

FIG. 8 is a block configuration diagram of an audio signal recording device according to claim 5.

FIG. 9 is a block configuration diagram of a conventional audio signal recording device.

[Explanation of symbols]

1, 71, 101 Audio signal recording device 2 A / D converter 2a A / D converted digital signal 3 Recording source selection means 3a Selected digital signal 4,140 Digital recording means 4a Compression / expansion means (of encoding means) 7) Recording source manual designating means 11,73 Recording input selection control means 12 Control information receiving means 13,74 Delimiter information automatic generating means 13a Code information relating to delimiters 14 Sub information generating / identifying means (of encoding means) Partial configuration) 20, 27, 29 Source audio equipment 41 Microcomputer (configuring source type designation information supply means) 42 Transmitter / receiver circuit (source type designation information supply means) 51, 61 Microcomputer (information indicating a break) 52, 62 transmitter / receiver circuit (constitutes a means for supplying information indicating a break) 58 break Detecting means 66 Silence detecting means 70 Audio device 110 Signal converting means 111 Signal decomposing means 112 Signal compressing means 113 Signal multiplexing means 114 Sub-information processing means 120 Signal re-converting means 121 Signal separating means 122 Signal expanding means 123 Sub-information processing means 124 Signal Combiner A Analog input signal A-IN Analog input terminal D Digital input signal D-IN Digital input terminal GMD-IN, HMD-IN, MD-IN Digital composite input terminal GMD-OUT, HMD-OUT, MD-OUT Digital composite Output terminal K Control information cable MD Recording medium S, 20S Control information input / output terminal (control information input terminal) Information indicating SK delimiter SS, SSM Source type designation information SR, SRM, ST Various control information

Claims (5)

[Claims] 1. An A / D converter for converting an analog input signal supplied to an analog input terminal into a digital signal, a digital signal converted by the A / D converter and a digital input supplied to a digital input terminal. Recording source selecting means for selecting one of the signals, digital recording means for recording the digital signal selected by the recording source selecting means on a recording medium, and source type designation information supplied to the control information input terminal It is determined whether the signal to be recorded is an analog input signal or a digital input signal based on the above, and the selection of the recording source selection means is automatically controlled based on the determination result, and the source type designation information is also included. If the recording source is not supplied, it is equipped with recording input selection control means for selecting the recording source specified by the recording source manual specifying means. And audio signal recording device. 2. An audio signal recording device capable of converting a digital signal into a predetermined recording format and recording the same on a recording medium together with code information relating to a division of recorded contents such as a track number and the like, at a control information input terminal. An audio signal recording apparatus comprising: automatic delimiter information generating means for generating code information relating to a delimiter based on information indicating a delimiter of supplied recording contents. 3. A source side provided with control information supply means for supplying an audio signal to be recorded to the audio signal recording device and supplying information indicating a break of the content of the supplied audio signal to the audio signal recording device. An audio device, and a delimiter information automatic generation unit that generates code information related to the delimiter based on information indicating a delimiter of the content of the audio signal supplied from the source-side audio device,
An audio signal recording device having an encoding means for converting the audio signal into a predetermined recording format including the code information relating to the delimiter generated by the delimiter information automatic generation means and supplying the same to the digital recording means. An audio device characterized by. 4. A source-side audio device that outputs a digital composite signal in which main information, which is digital audio information, and sub-information that includes at least information regarding a track number are multiplexed, and the digital composite signal as an input, Information on a delimiter of the content to be recorded is generated based on the information on the song number included in the sub-information, and the generated information on the delimiter and the main information are converted into a predetermined recording format to a recording medium. An audio device comprising an audio signal recording device for recording. 5. An audio signal recording device for inputting a digital composite signal in which main information and sub information, which are digital audio information, are multiplexed in a predetermined format, wherein the digital composite signal is main information and sub information. Signal decomposing means for decomposing into sub-information, sub-information processing means for extracting necessary information from sub-information and adding new sub-information as necessary, compression means for compressing main information, and this compression means And a recording medium driving device for recording the output signal from the signal converting means on a recording medium. An audio signal recording device characterized by being provided.