JP2003196918A - Audio system and control program for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audio system usable in common with a personal computer, and a control program for the same. <P>SOLUTION: In the audio system 100, a USB microcomputer 28 monitors the state of a USB-connected personal computer 50 and, when communication with the personal computer 50 becomes possible, outputs a start-up request to a system microcomputer 21. The system microcomputer 21 starts the present system 100 responding to the start-up request and outputs a control signal to the USB microcomputer 28. Thus, the USB microcomputer 28 makes a USB audio circuit 7 convert a PC voice signal inputted from the personal computer 50 into an analog signal to be outputted to a USB selector 12. The USB microcomputer 28 also outputs a control signal to the USB selector 12 and makes an AMP circuit 9 amplify the PC voice signal to be voice outputted from a loudspeaker 10. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device connectable to a computer and its control program.

[0002]

2. Description of the Related Art In recent years, along with the widespread use of computers such as personal computers, USB audio compatible audio devices connectable to personal computers have been commercialized. This audio device compatible with USB audio is particularly effective when, for example, software is installed in a personal computer that does not have a CD-ROM drive or when audio output from a personal computer that does not have a sound card or the like is possible.

Referring to FIG. 3, the configuration and operation of a USB audio compatible audio device 300 connectable to the personal computer 50 will be described.

First, the configuration of the conventional audio device 300 will be described. As shown in FIG. 3, the audio device 300
Is composed of a system microcomputer 1, a display unit 2, an operation unit 3, a CD device 4, an MD device 5, an audio selector 6, a USB audio circuit 7, a USB microcomputer 8, an AMP circuit 9 and a speaker 10.

The system microcomputer 1 is a CPU (Central
Processing Unit), ROM (Read Only Memory), RA
It is composed of M (Random Access Memory). CPU
Is R in response to a key operation from the operation unit 3 by the user.
Read various control programs stored in OM,
The program is expanded in the program storage area in the RAM, and the signals S1 to S6 are output to each section according to the control program to centrally control the operation of each section. Further, the CPU executes various kinds of processing in accordance with the read control program, and outputs the processing result as R
It is temporarily stored in a predetermined area in the AM or is displayed on the display unit 2.

The display unit 2 is an LCD (Liquid Crystal Display).
play) and the like, and in accordance with the instruction of the display signal S4 input from the system microcomputer 1, the operation status (for example, the track number and progress time of the music currently being played, the total recording time of the disc, etc.) is displayed on the display screen. Information, operation mode, etc.) is displayed.

The operation unit 3 includes an EJECT key, a source (C
D / MD / USB) designation key, playback key, numeric keypad, S
Various function keys such as a KIP UP / DOWN key and a stop key are provided, and an operation signal S7 by key operation is output to the system microcomputer 1. Further, the operation section 3 may output an operation signal S7 by remote control to the system microcomputer 1.

The CD device 4 is based on a control signal S2 input from the system microcomputer 1 and is based on a control signal S2. The music signal recorded on the loaded CD (or CD-R) and other recording information (hereinafter referred to as CD signal). Various operations related to the reproduction of (. In addition, the CD reproduced in the CD device 4
The signal is sent to the audio selector 6 via the signal line L1.
Is output to.

The MD device 5 is based on a control signal S3 input from the system microcomputer 1, and is based on a control signal S3.
Call it a signal. ) Various operations related to reproduction. Also, M
The MD signal reproduced by the D device 5 is the signal line L
It is output to the audio selector 6 via 2.

The audio selector 6 is provided with a control signal S1 input from the system microcomputer 1 during audio reproduction.
Accordingly, a CD signal input from the CD device 4 via the signal line L1, an MD signal input from the MD device 5 via the signal line L2, and an input from the USB audio circuit 7 via the signal line L5. Of the PC audio signals,
A signal to be output to the AMP circuit 9 via the signal line L3 is selected.

Further, the audio selector 6 receives the CD signal input from the CD device 4 via the signal line L1 and the MD device 5 according to the control signal S1 input from the system microcomputer 1 when the personal computer 50 reads the data.
Of the MD signal input from the signal line L2 from the signal line L2 from the position P1 corresponding to the USB
A signal to be output to the USB audio circuit 7 via 5 is selected.

The USB audio circuit 7 includes a D / A converter and an A / D converter. The D / A converter converts the PC audio signal input via the signal line L4 into an analog signal, and outputs the analog signal to the audio selector 6 via the signal line L5. Further, the A / D converter converts the CD signal or the MD signal input via the signal line L5 into a digital signal and outputs the digital signal to the USB microcomputer 8 via the signal line L4.

The USB microcomputer 8 is connected to the personal computer 50, which is an external device, by USB, and outputs an audio reproduction request and a data reading request input from the personal computer 50 to the system microcomputer 1. When the audio reproduction request is issued, the PC audio signal is input from the personal computer 50 together with the audio reproduction request.

Further, the USB microcomputer 8 transmits the PC audio signal input from the personal computer 50 via the signal line L4 in response to the control signal S6 input from the system microcomputer 1 during reproduction of the PC audio signal via the USB audio circuit. 7
Output to.

Further, the USB microcomputer 8 outputs the CD signal or the MD signal input through the signal line L4 to the personal computer 50 when reading the data.

The AMP circuit 9 amplifies the signal input through the signal line L3 based on the control signal S5 input from the system microcomputer 1 and outputs the amplified signal to the speaker 10 through the signal line L6. To output voice and music from.

Next, the operation of the conventional audio device 300 will be described.

First, the operation of the audio device 300 when receiving an audio request will be described. The system microcomputer 1 responds to an operation signal S7 (audio reproduction request) input by a key operation by a source designation key and a reproduction key provided in the operation unit 3 or an audio reproduction request by the personal computer 50 input from the USB microcomputer 8. Control signal S1 to the audio selector 6
Is output.

At this time, "CD" is used as the reproduction source.
If is selected, the system microcomputer 1 outputs the control signal S2 to the CD device 4. This allows the CD device 4
Outputs the CD signal to the audio selector 6. If "MD" is selected as the source for reproduction, the system microcomputer 1 sends the control signal S3 to the MD device 5.
Is output. As a result, the MD device 5 outputs the MD signal to the audio selector 6. If "USB" is selected as the source to be reproduced, the system microcomputer 1 outputs the control signal S6 to the USB microcomputer 8.
As a result, the USB microcomputer 8 outputs the PC audio signal input from the personal computer 50 to the USB audio circuit 7. Then, the USB audio circuit 7 converts the PC audio signal into an analog signal and outputs it to the audio selector 6.

Then, the audio selector 6 operates on the basis of the control signal S1 input from the system microcomputer 1.
A signal (CD signal, MD signal, or PC audio signal) corresponding to the source (CD / MD / USB) to be reproduced is selected and output to the AMP circuit 9. In addition, the AMP circuit 9
The input signal is amplified and output to the speaker 10, and the speaker 10 outputs voice and music.

Next, the operation of the audio apparatus 300 when receiving a data read request from the personal computer 50 will be described.

The system microcomputer 1 is a USB microcomputer 8
When a data reading request from the personal computer 50 is input from the personal computer 50, the control signal S1 is output to the audio selector 6 and the control signal is sent to the CD device 4 (or MD device 5) corresponding to the source (CD / MD) reading the data. S
2 (or control signal S3) is output. Then, the CD signal (or MD signal) is output from the CD device 4 (or MD device 5) to the audio selector 6.

Then, the audio selector 6 operates on the basis of the control signal S1 input from the system microcomputer 1.
The CD signal (or MD signal) input from the CD device 4 (or MD device 5) is selected, and the position P1 to U is selected.
Output to the SB audio circuit 7. Next, the USB audio circuit 7 converts the input CD signal (or MD signal) into a digital signal and outputs it to the USB microcomputer 8. Then, the USB microcomputer 8 outputs the input CD signal (or MD signal) to the personal computer 50.

As described above, the USB audio compatible audio device 300 receives the operation signal S7 input from the operation unit 3 or the CD signal input from the CD device 4 in response to the audio reproduction request from the personal computer 50. The speaker 1 outputs one of the MD signal input from the MD device 5 and the PC audio signal input from the personal computer 50.
Then, the speaker 10 outputs voice and music. Further, the audio device 300 outputs a CD signal input from the CD device 4 or an MD signal input from the MD device 5 to the personal computer 50 in response to a data reading request from the personal computer 50. As a result, PC 5
At 0, reading of the CD signal or MD signal is performed.

As described above, the audio device 30
0 (specifically, the USB microcomputer 8) and the personal computer 50 are connected by USB, and in order to listen to the PC audio signal in the personal computer 50, the audio device 3 is activated before the personal computer 50 is started.
00 should be started. At this time, it is necessary to select "USB" by the audio selector 6.

In this case, the audio device 300 can be activated in synchronization with the activation of the personal computer 50 by using an interlocking tap for the personal computer. However, since the function of the audio device 300 cannot be used when the personal computer 50 is not activated, for example, the timer operation function cannot be used.

Also, as mentioned above, the audio device 30
0 indicates that the output destination of the signal selected by the audio selector 6 has been selectively selected.
While outputting the PC audio signal input from the speaker 10 through the speaker 10, the CD signal or the MD signal could not be output to the personal computer 50. Similarly, PC 5
While the CD signal or MD signal was being output to 0, the PC audio signal input from the personal computer 50 could not be output from the speaker 10. That is, the audio device 300 and the personal computer 50 could not be shared.

[0028]

SUMMARY OF THE INVENTION An object of the present invention is to provide an audio device and its control program which can be shared with a personal computer without requiring a complicated operation when connecting to the personal computer.

[0029]

In order to solve the above-mentioned problems, an invention according to claim 1 is an audio apparatus connectable to a computer, wherein a connection state with the computer is monitored and a communication state with the computer is possible. In this case, a selection is made to select any one of the activation means for activating the own device, the audio signal input from the computer, and the music signal recorded on the recording medium loaded in the own device. Means, and control means for outputting the signal selected by the selecting means to an external sound, the control means being inputted from the computer by the selecting means when the activation is started by the activating means. The feature is that a voice signal is selected and output as an external voice.

According to a second aspect of the present invention, in an audio device connectable to a computer, communication control means for monitoring a connection state with the computer and controlling communication with the computer, and audio input from the computer. Selecting means for selecting any one of the signal and the recording information recorded on the recording medium loaded in the own device; control means for outputting the signal selected by the selecting means to external sound; Input means for instructing external audio output of the record information recorded on the recording medium loaded in the inside,
Notifying means for notifying the computer that the external voice output of the recorded information is instructed when the external voice output of the recorded information is instructed by the input means, and the computer according to the notification by the notifying means. Recognition signal receiving means for receiving a recognition signal inputted from the control means, when the recognition signal is received by the recognition signal receiving means, the control means outputs the record information instructed to output the external sound by the selecting means. It is characterized by selecting and outputting external sound.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the audio device described in the above item 3, the control means outputs the music signal or the recording information selected by the selection means to the computer in response to a request from the computer.

The invention according to claim 4 is a computer,
The connection state with an audio device is monitored, and when the computer and the audio device are connected, a control signal for operating and controlling the operation of the audio device is generated and output to the audio device. When an operation signal for controlling the operation of the audio device is received from the device, the operation signal is recognized, the control signal is generated, and the operation signal is transmitted to the audio device.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIG.
The first embodiment of the audio apparatus 100 to which the present invention is applied will be described in detail with reference to FIG.

First, the configuration of the first embodiment will be described. FIG. 1 is a diagram showing an internal configuration of an audio device 100 according to the present embodiment. In the configuration of the audio device 100 according to the first embodiment, the detailed description of the same parts as those of the conventional audio device 300 will be omitted, and the same components will be described with the same reference numerals.

As shown in FIG. 1, the audio device 100.
Is a system microcomputer 21, a display unit 2, an operation unit 3, a CD
Device 4, MD device 5, USB audio circuit 7, USB
It is composed of a microcomputer 28, an AMP circuit 9, a speaker 10, an audio selector 11, and a USB selector 12.

The system microcomputer 21 includes a CPU and RO
It is composed of M and RAM. The CPU reads various control programs stored in the ROM in response to a key operation from the operation unit 3 by the user, expands them in the program storage area in the RAM, and outputs signals S1 to S6 to each unit according to the control program. Then, the operation of each part is centrally controlled. Further, the CPU executes various kinds of processing according to the read control program, and temporarily stores the processing result in a predetermined area in the RAM or displays it on the display unit 2.

Further, when the system microcomputer 21 becomes in a state of being able to communicate with a personal computer connected by USB, U
A control signal (not shown) is generated in response to the activation request input from the SB microcomputer 28, and the self device 100 is activated (operation control). That is, the system microcomputer 21 has a function as a starting unit.

The audio selector 11 receives the CD signal input from the CD device 4 via the signal line L1 in response to the control signal S1 input from the system microcomputer 21,
MD input from the MD device 5 via the signal line L2
Of the signals, the signal to be output to the USB selector 12 via the signal line L11 is selected.

The USB selector 12 receives a signal (CD signal or MD signal) input from the audio selector 11 via the signal line L11 according to the control signal S8 input from the USB microcomputer 28 and the USB audio signal. The respective output destinations of the PC audio signal input from the circuit 7 through the signal line L12 are selected. That is, the USB selector 12 has a function as a selection unit.

The USB microcomputer 28 receives an audio reproduction request or a CD input from the personal computer 50 connected to the USB.
Alternatively, a read request for the data recorded in the MD is output to the system microcomputer 21. It should be noted that at the time of audio reproduction request or activation, a PC audio signal is input from the personal computer 50 together with the audio reproduction request.

Further, the USB microcomputer 28 monitors the state of the personal computer 50 connected by USB, and when it becomes possible to communicate with the personal computer 50 (that is, when the power of the personal computer 50 is turned on), the system microcomputer An activation request is output to 21.

The USB microcomputer 28 also receives a control signal S6 input from the system microcomputer 21 in response to an audio reproduction request, a data read request, and a start request.
In response, the control signal S8 is output to the USB selector 12. That is, the USB microcomputer 28 has a function as a control unit.

Next, the operation of the first embodiment will be described.

First, the operation of the audio apparatus 100 when it becomes possible to communicate with the personal computer 50 (that is, when the personal computer 50 is powered on) will be described.

In FIG. 1, the USB microcomputer 28 has a U
The state of the personal computer 50 connected to the SB is monitored, and when it becomes possible to communicate with the personal computer 50, a start request is output to the system microcomputer 21.

The system microcomputer 21 generates a control signal (not shown) in response to the activation request input from the microcomputer 28 and activates its own device 100. After starting, the system microcomputer 21 outputs the control signal S6 to the USB microcomputer 28. As a result, the USB microcomputer 2
8 is a PC audio signal input from the personal computer 50
Output to the B audio circuit 7. Then, the USB audio circuit 7 converts the input PC audio signal into an analog signal and outputs it to the USB selector 12.

Further, the USB microcomputer 28 outputs a control signal S8 to the USB selector 12 and the USB selector 12
The PC audio signal input to is output to the AMP circuit 9. Then, the AMP circuit 9 amplifies the input PC audio signal based on the control signal S5 input from the system microcomputer 1, outputs the amplified audio signal to the speaker 10, and causes the speaker 10 to output audio or music.

At this time, when the operation signal S7 for instructing the reproduction of the CD (or MD) is input by the key operation of the source designation key and the reproduction key provided in the operation unit 3, the system microcomputer 21 causes the CD ( (Or MD) reproduction instruction is recognized. Then, the system microcomputer 21
The control signal S1 is generated and output to the audio selector 11, and the control signal S2 (or the control signal S3) is generated.
Is generated and output to the CD device 4 (or MD device 5). Then, the CD device 4 (or MD device 5) outputs the CD signal (or MD signal) to the audio selector 11. Then, the audio selector 11 outputs the input CD signal (or MD signal) to the USB selector 12. At this time, the USB microcomputer 28 also outputs the control signal S8 to the USB selector 12.

Next, the USB selector 12 outputs the CD signal (or MD signal) input from the audio selector 11 to the USB audio circuit 7 based on the control signal S8 input from the USB microcomputer 28. Then, the USB audio circuit 7 converts the input CD signal (or MD signal) into a digital signal and outputs it to the USB microcomputer 28. Then, the USB microcomputer 28
Outputs the input CD signal (or MD signal) to the personal computer 50. In the personal computer 50, the CD signal (or MD signal) is mixed with the PC audio signal,
It is input to the USB microcomputer 28.

In this case, the CD signal (or MD
Signal) and the mixed PC audio signal are output from the speaker 10. Also, not the reproduction of the CD (or MD) but the data (C
When a request to read the D signal or MD signal is received, the CD signal (or MD signal) input from the USB microcomputer 28 to the personal computer 50 is the PC audio signal and the MIX.
It is read without being read.

Next, the USB microcomputer 28 and the personal computer 50
A case will be described where and are not in a communicable state (that is, the power of the personal computer 50 is not turned on).

At this time, the system microcomputer 21 recognizes the audio reproduction request by the operation signal S7 (audio reproduction request) input from the operation unit 3, and the control signal S
1 is generated and output to the audio selector 11, and a control signal S2 (or control signal S3) is generated to generate C
Output to the D device 4 (or the MD device 5). Then, the audio selector 11 outputs the CD signal (or MD signal) input from the CD device 4 (or MD device 5) to the US.
Output to the B selector 12.

The system microcomputer 21 also outputs a control signal S6 to the USB microcomputer 28. Accordingly
The USB microcomputer 28 outputs a control signal S8 to the USB selector 12. Then, the USB selector 12 outputs the input CD signal or MD signal to the AMP circuit 9, the AMP circuit 9 amplifies the CD signal or MD signal, and outputs the amplified signal to the speaker 10 to output voice or music from the speaker 10. Output.

As described above, in the first embodiment, the audio device 100 is activated in response to the power-on of the personal computer 50, and the USB selector 12 is controlled to activate the personal computer 50 from the personal computer 50. The input PC audio signal is output from the speaker 10. Further, at this time, when the reproduction of the CD or the MD is instructed by the operation unit 3, the USB selector 12 causes the audio selector 1 to operate.
The CD signal or MD signal input from 1 is output to the USB audio circuit 7 and converted into a digital signal,
Output from the microcomputer 28 to the personal computer 50. As a result, the CD signal or MD signal input from the personal computer 50 and the PC audio signal MIXed are output from the speaker 10.

When the audio reproducing request is issued from the operation unit 3 when the power of the personal computer 50 is not turned on, the audio device 100 outputs the control signal S8 to the USB selector 12 by the USB microcomputer 28, and US
The B selector 12 causes the CD signal or the MD signal to AM.
Output to the P circuit 9. Then, by the AMP circuit 9, C
The D signal or the MD signal is amplified and output from the speaker 10.

Therefore, the audio device 100 becomes ready for communication with the personal computer 50, that is, when the power of the personal computer 50 is turned on.
Since the activation of 0 is performed, there is no need to use the interlocking tap or to turn on the power of the audio device 100 in advance, and the audio device 100 and the personal computer 50 can be easily shared. When the power of the personal computer 50 is not turned on, the personal computer 50 operates as a normal audio device, and thus the audio device 100 having a timer operation function or the like is used.
The functions of can be used without restriction. Also, at startup,
The speaker 1 receives the PC audio signal input from the personal computer 50.
Since it is decided to output an external voice by setting 0, for example,
The audio selector 11 is manually operated by the user.
This is convenient because there is no need to perform a complicated operation for changing the selection setting (for example, switching of selectors) and the like.
Further, the audio device 100 can simultaneously output the PC audio signal input from the personal computer 50 and the CD signal or the MD signal from the speaker 10. In addition, the PC 10 receives audio signals input from the personal computer 50 from the speaker 10.
CD signal or MD while external audio is being output by
Music signals such as signals can be read by the personal computer 50. That is, the audio device 100 is the personal computer 5
Can be shared with 0.

[Second Embodiment] The second embodiment of the audio apparatus 200 to which the present invention is applied will be described below in detail with reference to the drawings. FIG. 2 shows an audio device 200.
3 is a block diagram showing the configuration of FIG. The detailed description of the same parts as those of the audio device 100 according to the first embodiment will be omitted, and the same components will be denoted by the same reference numerals and described below.

As shown in FIG. 2, the audio device 200
Is the system microcomputer 31, the display unit 2, the operation unit 3, the CD
Device 4, MD device 5, USB audio circuit 7, USB
It is composed of a microcomputer 28, an AMP circuit 9, a speaker 10, an audio selector 11, and a USB selector 12.

The system microcomputer 31 outputs control signals S1 to S6 and S9 to each part of the audio device 200 to centrally control the operation of each part.

Further, the system microcomputer 31 becomes a state in which the personal computer 50 and the USB microcomputer 28 can communicate with each other,
The speaker 1 receives the PC audio signal input from the personal computer 50.
While outputting from 0, CD or MD from the operation unit 3
When the operation signal S7 for instructing the reproduction of is input, the reproduction instruction of the CD or MD is recognized to generate the control signal S6,
Output to the USB microcomputer 28. Then, the PC 50 is notified from the USB microcomputer 28 that the CD or MD reproduction instruction has been received. That is, the operation unit 3 has a function as an input unit, and the USB microcomputer 28 has a function as a communication control unit and a notification unit.

When the recognition signal for the notification is input from the personal computer 50 through the USB microcomputer 28, the system microcomputer 31 accepts the recognition signal and outputs the control signal S1 to the audio selector 11 and C
The control signal S2 or S3 is output to the D device 4 or the MD device 5. At this time, the system microcomputer 31
The control signal S9 is output to the USB selector 12, and only the CD signal or the MD signal input to the audio selector 11 (that is, the signal not including the PC audio signal) is output to the AMP circuit 9. That is, the system microcomputer 31
Has a function as a recognition signal receiving means.

As described above, in the second embodiment, the audio device 200 reproduces the CD or MD from the operation unit 3 while the PC audio signal input from the personal computer 50 is being output from the speaker 10. Is instructed, the personal computer 50 is notified that the reproduction instruction has been received. Then, when the recognition signal for this notification is input from the personal computer 50, the CD device 4 or the MD device 5 sends a CD
A signal or MD signal is output to start the reproducing operation.

Therefore, while the PC audio signal input from the personal computer 50 is being output from the speaker 10, if a CD or MD reproduction instruction is issued from the operation unit 3, only the CD or MD reproduction is performed. You can That is, the reproduction of the CD or MD can be prioritized. Further, when the operation section 3 gives an instruction to reproduce a CD or MD, the computer 50 is notified of the reproduction instruction, and the operation is started after the PC 50 recognizes the instruction. The operation of the audio device 200 that is present and the actual operation match, and no contradiction occurs. Therefore, for example, the
-If an instruction is given to reproduce the CD while reading the data in the ROM, the recognition signal is not input from the personal computer 50, and a warning can be displayed on the display unit 2. CD signal or M according to the request from the personal computer 50
Since recorded information such as a D signal is output to the personal computer 50, for example, a CD or M while outputting an audio signal as an external sound.
The information (music signal or other recorded information) recorded in D can be read by the personal computer 50. That is, the audio device 100 can be shared with the personal computer 50.

Although the audio selector 11 outputs the CD signal or the MD signal to the USB selector 12 in the present embodiment, the present invention is not limited to this, and the CD signal can be changed by changing the configuration of the audio selector. The MD signal and the MD signal may be output to the USB selector 12, respectively. Thereby, for example, the CD-RO
It is possible to reproduce the MD while reading the data of M with the personal computer 50.

Further, in the present embodiment, the output of the USB selector 12 is switched when there is an instruction to reproduce the CD or MD from the operation unit 3, but the present invention is not limited to this. 3 is further provided with a mode setting key for setting the source direct function, and when the mode setting key is instructed, the audio device 200
The operation may be prioritized.

Further, the present invention is not limited to the contents of the above-mentioned embodiment, and can be modified as appropriate without departing from the gist of the present invention.

[0067]

According to the present invention, the self-device is started up when it becomes possible to communicate with the computer, so that the interlocking tap is used to interlock with the start-up of the computer or before the power of the computer is turned on. It is not necessary to turn on the power of the audio device, and the audio device and the computer can be easily shared. In addition, since the audio signal input from the computer when the activation is started is output as an external audio, it is convenient because it is not necessary to perform a complicated operation such as selection setting for outputting the audio signal in advance. Further, since the music signal is output to the computer in response to the request from the computer, the music signal can be read by the computer while outputting the sound signal as an external sound, for example. That is, an audio device that can be shared with a computer can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an audio device 100.

FIG. 2 is a block diagram showing a configuration of an audio device 200.

FIG. 3 is a block diagram showing a configuration of an audio device 300.

[Explanation of symbols]

1 system microcomputer 2 Display 3 operation part 4 CD device 5 MD device 6 audio selector 7 USB audio circuit 8 USB microcomputer 9 AMP circuit 10 speakers 100 audio devices 11 audio selector 12 USB selector 21 system microcomputer 28 USB microcomputer 200 audio devices 31 system microcomputer 300 audio equipment 50 PC

Claims (4)

[Claims] 1. An audio device connectable to a computer, which monitors a connection state with the computer, and activates itself when communication with the computer is enabled, and input from the computer. Of the audio signal and the music signal recorded on the recording medium loaded in the own device,
The selection means for selecting any one, and a control means for outputting the signal selected by the selection means to an external voice, the control means, when the activation by the activation means is started, by the selection means An audio device, wherein an audio signal input from the computer is selected and external audio is output. 2. An audio device connectable to a computer, comprising: communication control means for monitoring a connection state with the computer and controlling communication with the computer; an audio signal input from the computer; Of the recorded information recorded on the loaded recording medium,
Selection means for selecting any one, control means for outputting the signal selected by the selection means to an external sound, and input for instructing the external sound output of the record information recorded on the recording medium loaded in the own device. Means for notifying the computer that the external voice output of the recorded information is instructed to the computer when the external voice output of the recorded information is instructed by the input means; And a recognition signal receiving means for receiving a recognition signal input from the computer. The control means is instructed to output an external voice by the selecting means when the recognition signal is received by the recognition signal receiving means. An audio device, which selects recorded information and outputs it as an external sound. 3. The control means outputs the music signal or the recording information selected by the selecting means to the computer in response to a request from the computer. The audio device described. 4. A connection state between a computer and an audio device is monitored, and when the computer and the audio device are connected, a control signal for operating and controlling the operation of the audio device is generated to generate the audio signal. When an operation signal for outputting an operation signal for controlling the operation of the audio device is received from the audio device, the operation signal is recognized, the control signal is generated, and the operation signal is output to the audio device. A control program for a characteristic audio device.