JP2007208828A - Vehicular audio input controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new technology for controlling a vehicle-interior audio output device, based on the audio input from an audio input device for the sake of smoothly performing vehicle-interior conversations. <P>SOLUTION: Driver's audio in a driver' seat 50, which has been input from a microphone 2, is made to be output from a speaker, selected by the driver from among a left speaker 4 in the front row, a right speaker 5 in the second row, a left speaker 6 in the second row, a right speaker 7 in the third row, and a left speaker 8 in the third row. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for controlling an audio output device in a vehicle cabin so that conversation in the vehicle cabin is smoothly performed.

2. Description of the Related Art Conventionally, a vehicle voice input / output control device that controls a voice output device in a vehicle interior based on sound input from a voice input device so that conversation in the vehicle cabin is smoothly performed is disclosed in Patent Document 1, 2 is disclosed. Specifically, when the apparatus described in Patent Literatures 1 and 2 detects that a human voice is input to a microphone at a certain position in the vehicle interior, the device outputs the sound from a speaker attached at another position in the vehicle interior. The volume of music has been reduced. As a result, the voice of the speaker in the passenger compartment can be heard well by other passengers, and as a result, the conversation in the passenger compartment is smoothly performed.
JP 7-170592 A JP-A-7-170593

  However, in such a technique, even when it is desired to convey a word to a passenger in a specific seat, the output volume from the microphone attached to a seat other than the specific seat is also reduced. Therefore, listening to music other than the person who wants to communicate the language is hindered.

  According to the present invention, a voice input / output control device for a vehicle for facilitating a conversation in a passenger compartment can convey a word to a specific occupant in the passenger compartment, and the word is transmitted to other occupants. The object is to make it possible to reduce the possibility of obstruction than before.

  In order to achieve the above object, an invention according to claim 1 includes an operation unit that receives an operation of an occupant, and a voice input device that is mounted at a first position closest to the first seat among all seats in the passenger compartment. Voice receiving means for receiving a voice signal from a second position voice output device mounted at a second position closest to all the seats on a second seat different from the first seat, and the first seat The voice received by the voice receiving means in any one of the third position voice output devices mounted at the third position closest to all the seats on a third seat different from both the seat and the second seat An audio input / output control device for a vehicle, comprising: output control means for outputting a signal and switching an audio output device to which the audio signal is output based on the operation received by the operation unit.

  In this case, since the voice uttered by the occupant of the first seat is output from the voice output device near the occupant of the second seat or the third seat, when talking directly in the passenger compartment Compared with, you can hear the voice of the speaker better. Therefore, conversation in the passenger compartment is smoothly performed. This effect is more pronounced when the noise in the passenger compartment is loud or when music is flowing in the passenger compartment. In addition, since the occupant can select the sound output device near the other party's seat that he / she wishes to talk to as the output destination of the sound, only the conversation with the specific opponent can be smoothly performed. Therefore, the voice input / output control device for a vehicle can convey a word to a specific occupant in the passenger compartment, and the possibility that the word may interfere with other occupants can be reduced as compared with the conventional case.

 The invention according to claim 2 is characterized in that the output control means starts outputting the audio signal based on the fact that the occupant has uttered a predetermined word.

  In this way, the function of the present invention can be validated only when it is determined that a passenger is necessary. In addition, since the vehicle voice input / output control device can accept the passenger's determination by sound, the labor of manually inputting the determination content can be saved.

The invention according to claim 3 is characterized in that the first seat is a driver's seat. As a result, it is possible to suppress the tendency for the driver in the driver's seat to turn toward the rear seat or the passenger seat in order to clearly convey the voice.

According to a fourth aspect of the present invention, the output control means outputs a music signal to an audio output device mounted in the second position or an audio output device in another vehicle interior, and the audio receiving means A signal obtained by removing a portion indicating the music from the audio signal received by the audio signal is output to an audio output device mounted at the second position.

  By doing so, it is possible to suppress the phenomenon that the sound output from the audio output device is output again to the audio output device via the audio input device, that is, the echo phenomenon.

  Hereinafter, an embodiment of the present invention will be described. FIG. 1 schematically shows the interior of a vehicle 100 equipped with a three-row seat in which the vehicle navigation device 1 according to this embodiment is mounted. A vehicle navigation device 1 is mounted in the front part of the interior of the three-row seat vehicle 100. The vehicle navigation device 1 includes a microphone 2, a front row right speaker 3, a front row left speaker 4, and a second row right speaker 5. The second row left speaker 6, the third row right speaker 7, and the third row left speaker 8 are connected to each other.

  The microphone 2 is attached to a position closest to the driver's seat 50 among all the seats in the vehicle interior including the driver's seat 50, the passenger seat 60, the second row seat 70, and the third row seat 80. Of all the seats in the passenger compartment, the front row right speaker 3 is closest to the driver's seat 50, the front row left speaker 4 is closest to the passenger seat 60, and the second row right speaker 5 is the second row seat 70. The second row left speaker 6 is closest to the left side seat of the second row seat 70, and the third row right speaker 7 is closest to the right side seat of the third row seat 80. The third row left speaker 8 is mounted at a position closest to the left side seat of the third row seat 80.

  As will be described in detail below, the vehicle navigation device 1 outputs the voice of the driver input from the microphone 2 to any or all of the speakers 4 to 8 attached to each seat in the vehicle interior. Promote smooth conversation with other passengers.

  FIG. 2 shows a hardware configuration of such a vehicle navigation apparatus 1. The vehicle navigation device 1 includes a position detector 11, an image display device 12, an operation unit 13, an audio DSP 14, a RAM 16, a ROM 17, an external storage unit 18, and a control circuit 19.

  The position detector 11 includes a well-known sensor (not shown) such as a geomagnetic sensor, a gyroscope, a vehicle speed sensor, and a GPS receiver. The current position and direction of the vehicle based on the characteristics of each of these sensors. Is output to the control circuit 19.

  The image display device 12 displays a video based on the video signal output from the control circuit 19 to the user.

  The operation unit 13 includes a plurality of mechanical switches provided on the surface of the vehicle navigation device 1 and an input device such as a touch panel provided so as to overlap the display surface of the image display device 12. A signal based on the touch is output to the control circuit 19.

  The audio DSP 14 is a DSP (Digital Signal Processor) having a circuit configuration for controlling the speakers 3 to 8 for music reproduction or the like, and is connected to the speakers 3 to 8. FIG. 3 shows a functional configuration of the audio DSP 14 as a block diagram. As shown in FIG. 3, the audio DSP 14 can execute an output destination selection function, a volume control function, a music playback function, an echo cancellation function, and a noise cancellation function in parallel.

  The output destination selection function outputs an audio signal to any of the speakers 3 to 8 and outputs an audio signal to any of the speakers 3 to 8 based on a control signal for selecting an output destination received from the control circuit 19. This is a function to control whether or not. Note that this output destination selection function independently controls the output destination of the sound signal related to the sound source for each of a plurality of sound sources (for example, the music read from the external storage unit 18 and the sound signal input from the control circuit 19). be able to.

  The volume control function is a function for controlling how much each of the speakers 3 to 8 amplifies the audio signal before outputting the audio signal. Note that this volume control function can independently control the amplification degree of a signal related to a sound source for each sound source when sound from a plurality of sound sources is superimposed and output to one speaker.

  The music playback function reads music data from the storage medium of the external storage unit 18 in response to a signal for requesting specific music playback received from the control circuit 19, and sends a music signal based on the read music data to the speakers 3-3. 8 is a function for outputting to a speaker selected by the output destination selection function (hereinafter referred to as a selected speaker).

  The audio output control function outputs the audio signal received from the control circuit 19 to the selected speaker. It is a function.

  The echo cancellation function is a function that performs processing to remove to some extent a portion corresponding to music output from the selected speaker by the music playback function from the audio signal input from the microphone 2 and input to the audio DSP 14 via the control circuit 19. It is. When the echo cancellation function is being executed, the audio output control function described above outputs to the selected speaker an audio signal from which the music portion has been removed to some extent by the echo cancellation function. Specifically, the echo cancellation function includes the content and volume of the sound output from each selected speaker by the music playback function, the installation position information of the microphone 2 and the speakers 3 to 8 set in advance when the vehicle navigation apparatus 1 is installed. The sound input to the microphone 2 is estimated based on data such as acoustic characteristics in the vehicle interior that are set in advance when the vehicle navigation device 1 is installed, and the estimated sound is actually input to the microphone 2. Remove from.

  The noise canceling function is a function for removing noise generated inside or outside the vehicle interior from the audio signal input from the microphone 2 and input to the audio DSP 14 via the control circuit 19. The noise inside or outside the vehicle includes, for example, an engine sound, a sound that the vehicle 100 cuts off the wind, and a sound caused by the movement of the passenger's limbs. When the noise cancellation function is executed, the above-described audio output control function outputs an audio signal from which noise has been removed to some extent by the noise cancellation function to the selected speaker.

  The functions realized by these audio DSPs 14 are functions normally possessed by an audio DSP used in many conventional navigation apparatuses.

  The external storage unit 18 includes a nonvolatile storage medium such as a DVD, CD, and HDD, and a device that reads (and writes) data from and to the storage medium, and is read and executed by the control circuit 19 In addition, map data for route guidance, music data, and the like are stored.

  A control circuit (corresponding to a computer) 19 executes a program for the operation of the vehicle navigation apparatus 1 read from the ROM 17 and the external storage unit 18, and in executing the program, the RAM 16, the ROM 17, and the external storage unit 18. Information is read from the RAM 16, the information is written to the RAM 16 and (if possible) the external storage unit 18, signals are received from the microphone 2, the position detector 11, and the operation unit 13, and the image display device 12 and the audio DSP 14 receive the signal. Various signals as described later are output.

  Specific processing performed by the control circuit 19 executing the program includes current position specifying processing, guidance route calculation processing, route guidance processing, voice command recognition processing, music playback control processing, voice transfer control processing, and the like.

  The current position specifying process is a process for specifying the current position and direction of the vehicle based on a signal from the position detector 11 using a known technique such as map matching. The guidance route calculation process is a process of receiving an input of a destination by the user from the operation unit 13 and calculating an optimum guidance route from the current position to the destination. The route guidance process reads map data from the external storage unit 18 and outputs an image in which the calculated guide route, destination, current position, etc. are overlaid on the map indicated by the map data to the image display device 12, This is a process for controlling the audio DSP 14 to output a guidance voice signal for instructing a right turn, a left turn or the like to a speaker such as the front row right speaker 3 when necessary, for example, when the host vehicle reaches the guidance intersection.

  The voice command recognition process is a process of specifying a word included in the sound by performing a known voice recognition process on the sound input from the microphone 2 and executing a function previously associated with the word. is there. By this voice command recognition process, the occupant can realize various functions of the vehicle navigation device 1 simply by issuing words associated with the functions (hereinafter referred to as voice commands).

  The music reproduction control process is a process of outputting a request signal for reproducing the music specified by the signal to the audio DSP 14 based on the signal received from the operation unit 13.

  The voice transfer control process is a process that is repeatedly executed so that the voice of the driver input to the microphone 2 is output to all or part of the speakers 4 to 8. A flowchart of this process is shown in FIG. In this voice transfer control process, the control circuit 19 first waits until a voice transfer start request is made by a passenger in step 110. Specifically, when the voice command recognition process detects that a word of a predetermined voice command (for example, words such as “voice transfer start” and “voice output start”) is input to the microphone 2, a voice transfer start request is issued. Judge that there is. Further, it may be determined that there is a voice transfer start request based on a predetermined operation for starting voice transfer performed on the operation unit 13.

  If there is an audio transfer start request, setting acceptance is subsequently executed in step 115. Specifically, the display for prompting the occupant to make settings for voice transfer is displayed on the image display device 12, and the setting made by the occupant using the operation unit 13 is accepted accordingly. FIG. 5 shows an example of a setting screen 90 displayed on the image display device 12 for prompting the setting. This setting screen has an output destination setting window 200, a volume setting window 300, a mode setting window 400, a noise cancel setting window 500, an echo cancel setting window 600, and a decision button 700.

  The output destination setting window 200 is a window for prompting the setting for the output destination selection function of the audio DSP 14 described above, and includes a plurality of buttons 230, 240, 250, 260, 270 and 280. The buttons 230, 240, 250, 260, 270, and 280 are respectively the front row right speaker 3, the front row left speaker 4, the second row right speaker 5, the second row left speaker 6, the third row right speaker 7, and the third row. This corresponds to the left speaker 8 in the row. One or more of these buttons can be selected by the occupant.

  The volume setting window 300 is a window for prompting setting for the above-described volume control function, and includes buttons 310 and 320 for increasing / decreasing the volume, and an indicator 330. Each time the button 310 or 320 is selected, the control circuit 19 reflects the set value of the volume changed as a result of the selection on the display of the indicator 330.

  The mode setting window 400 is a window that prompts the user to select one of a plurality of setting modes, and includes a plurality of buttons 410, 420, 430, and 440. The plurality of buttons 410, 420, 430, and 440 correspond to a normal mode, a preset A mode, a preset B mode, a preset C mode, and a preset D mode, respectively.

  The noise cancellation setting window 500 is a window that prompts settings for either execution or non-execution of the above-described noise cancellation function, and includes buttons 510 and 520 corresponding to execution and non-execution, respectively. The echo cancel setting window 600 is a window that prompts the user to set either the execution or non-execution of the above-described echo cancellation function, and includes buttons 610 and 620 corresponding to execution and non-execution, respectively. The control circuit 19 accepts selection of each button on the setting screen 90 based on an operation on the operation unit 13 or an input of a voice command.

  When the determination button 700 is selected by the occupant, the control circuit 19 subsequently outputs a setting signal to the audio DSP 14 at step 120. This setting signal includes information indicating that the setting for the audio output control function is included. In addition, this setting signal indicates that, when the mode selected at the time when the decision button 700 is selected is the normal mode, the speaker corresponding to the selected button in the output destination setting window 200 is specified in the volume setting window 300. The volume setting value displayed on the indicator 330, the execution / non-execution of noise cancellation set using the noise cancellation setting window 500, and the execution / non-execution of echo cancellation set using the echo cancellation setting window 600 Contains setting information. In addition, when the mode selected at the time when the determination button 700 is selected is any one of the preset modes A to C, the setting signal is stored in the external storage unit 18 in association with the preset mode in advance. , Volume setting value, execution / non-execution of noise cancellation, and execution / non-execution of echo cancellation. Note that the control circuit 19 may associate the settings with the preset modes A to C based on an operation of the operation unit 13 or an input of a voice command by the user.

  Upon receiving the setting signal, the audio DSP 14 executes the output destination selection function, and the speaker specified by the setting signal is set as the output destination signal of the sound input from the microphone 2. Further, the audio DSP 14 uses the volume control function to reflect the volume specified by the setting signal in the amplification degree when the sound input from the microphone 2 is output. The audio DSP 14 executes the noise cancellation function only when this setting signal specifies that the noise cancellation function is to be executed. The audio DSP 14 executes the echo cancellation function only when this setting signal specifies that the echo cancellation function is to be executed.

  Subsequently, in step 125, the control circuit 19 outputs a control signal requesting to reduce the volume of music to the audio DSP. This control signal includes information specifying all or part of the speakers 3-8. If the audio DSP 14 is executing the music playback function when receiving this control signal, the audio DSP 14 reduces the amplification degree of the music signal output from the speaker specified by the control signal by its own volume control function. The specification of the speakers included in the control signal by the control circuit 19 may include all the speakers 3 to 8 or may include only all the speakers 4 to 8 except the front row right speaker 3. Alternatively, a speaker specified in the setting signal output to the audio DSP 14 in step 120 may be included.

  Subsequently, at step 130, the control circuit 19 outputs a control signal for requesting the audio DSP 14 to execute the audio output control function. Then, output of the audio signal received from the microphone 2 to the audio DSP 14 is started. The audio DSP 14 that has received the control signal and the audio signal starts to execute the audio output control function based on the setting output by the process of step 120. If the audio DSP 14 is executing the music playback function at this point, the audio DSP 14 continues to execute the function.

  Thus, the driver's voice input to the microphone 2 is input to the audio DSP 14 via the control circuit 19, and the audio DSP 14 sends the input voice to one or more speakers designated by the occupant in step 115. Output only. Further, the audio DSP 14 amplifies the volume of the sound output from the speaker so as to become the volume designated by the occupant in step 115. Also, the audio DSP 14 performs echo cancellation processing on the sound before being output from the speaker only when the occupant selects execution of echo cancellation in step 115. Also, the audio DSP 14 performs noise cancellation processing on the sound before being output from the speaker only when the occupant selects execution of noise cancellation in step 115.

  Subsequently, in step 135, whether or not to change the setting in step 115 is determined based on whether or not there is an operation to that effect or an input of a voice command to that effect. When it is determined that the setting is to be changed, the setting is subsequently accepted in step 140 by the process equivalent to step 115, and then the setting signal is output to the audio DSP 14 in step 145 by the process equivalent to step 120.

  If it is determined that the setting has not been changed following step 145 and in step 135, the control circuit 19 determines in step 150 whether there is a voice transfer termination request from the passenger. Specifically, when the voice command recognition process detects that a word of a predetermined voice command (for example, words such as “voice transfer end” and “voice output end”) is input to the microphone 2, a voice transfer end request is issued. Judge that there is. Further, it may be determined that there is a voice transfer end request based on an operation performed on the operation unit 13 to end a predetermined voice transfer. If there is a voice transfer end request, then step 155 is executed. If not, step 135 is executed again.

  By such processing of steps 135 to 150 by the control circuit 19, settings relating to the output destination of audio from the microphone 2, the output volume, the presence or absence of noise cancellation, or the presence or absence of echo cancellation until a voice transfer end request is made by the occupant Each time there is a change, the audio DSP 14 reflects the change and outputs the sound to the selected speaker.

  In step 155, processing for ending audio transfer is performed. Specifically, output of the audio signal received from the microphone 2 to the audio DSP 14 is stopped, and a control signal for requesting termination of the audio output control function is output to the audio DSP 14. As a result, the audio DSP 14 ends the audio output control function, and as a result, the selected speaker ends the output of the driver's audio.

  By the operation of the control circuit 19 and the audio DSP 14 as described above, the vehicular navigation apparatus 1 outputs a voice signal from the driver from the microphone 2 that is closest to the driver's seat 50 among all the seats 50 to 80 in the passenger compartment. The received voice signal is output to any or all of the speakers 4 to 8 located near the passenger seat 60, the second row seat 70, and the third row seat 80 among all the seats 50 to 80. Thus, since the voice uttered by the driver is output from the voice output device near the passenger seat and the rear seat, the voice of the driver can be heard better than when talking directly in the passenger compartment. Therefore, conversation in the passenger compartment is smoothly performed. Thus, the driver of the driver's seat can suppress the tendency to turn to the rear seat or the passenger seat in order to clearly convey the voice. This effect is more pronounced when the noise in the passenger compartment is loud or when music is flowing in the passenger compartment.

  Moreover, the vehicle navigation apparatus 1 switches the output destination of the sound input into the microphone 2 among the speakers 4 to 8 based on the occupant's selection. As a result, the passenger can select the sound output device near the other party's seat that he / she wants to talk to as the sound output destination, so that only the conversation with the specific person can be smoothly performed. It becomes.

  Further, the vehicle navigation device 1 starts or ends the voice transfer based on the fact that the occupant has issued a predetermined word indicating the start or end of the voice transfer. In this way, the function of the present invention can be validated only when it is determined that a passenger is necessary. In addition, since the vehicle voice input / output control device can accept the passenger's determination by sound, the labor of manually inputting the determination content can be saved.

  In addition, the vehicle navigation device 1 performs echo cancellation and noise cancellation on the audio signal received from the microphone 2 based on the occupant's selection, and outputs the resulting audio signal to the selected speaker.

  By doing so, it is possible to suppress the phenomenon that the sound output from the speakers 3 to 8 is output again to the audio output device via the microphone 2, that is, the echo phenomenon. In addition, noise of sound input from the microphone 2 can be reduced.

  In addition, the vehicle navigation apparatus 1 uses a combination of settings for specifying a selected speaker, a volume for outputting sound received from the microphone 2 to the selected speaker, whether to cancel echo, and whether to cancel noise as preset settings in advance. A plurality of data can be stored, and voice transfer can be executed using any of these preset settings according to the occupant's selection.

In the above embodiment, the vehicle navigation device 1 corresponds to an example of a vehicle voice input / output control device. The driver seat 50 corresponds to an example of a first seat. The passenger seat 60, the second row seat 70, and the third row seat 80 correspond to an example of the second seat and the third seat. The microphone 2 corresponds to an example of an audio input device, and the speakers 3 to 8 correspond to an example of an audio output device. In addition, the control circuit 19 functions as an example of a voice receiving unit by receiving a voice signal from the microphone 2. The audio DSP 14 corresponds to an example of output control means.
(Other embodiments)
As mentioned above, although embodiment of this invention was described, the scope of the present invention is not limited only to the said embodiment, The various form which can implement | achieve the function of each invention specific matter of this invention is included. It is.

  For example, in step 120 and step 140, the control circuit 19 of the above-described embodiment is configured so that the higher the vehicle speed of the vehicle 100 specified based on the signal from the position detector 11 is, the higher the vehicle speed from the microphone 2 is. You may make it raise the volume which outputs a sound to a selection speaker. This takes into account the fact that the noise generated inside or outside the vehicle increases as the vehicle speed increases.

  In step 120 and step 140, the control circuit 19 determines whether the host vehicle is on an expressway or a general road on the basis of the host vehicle position and map data specified by the current position specifying process. When the user is in the road, the volume for outputting the sound from the microphone 2 to the selected speaker may be higher than when the user is on a general road.

  In addition, instead of receiving the occupant designation in step 120 and step 140, the control circuit 19 performs the noise cancellation function when the vehicle speed of the vehicle 100 specified based on the signal from the position detector 11 is higher than the reference speed. Execution may be selected. Here, the reference speed may be a constant value (for example, 60 kilometers per hour) stored in advance, a value that varies based on various conditions, or a value that is randomly determined within a certain range. It may be.

  In step 120 and step 140, the control circuit 19 determines whether the host vehicle is on an expressway or a general road on the basis of the host vehicle position and map data specified by the current position specifying process. In any case, the execution of the noise canceling function may be selected. In addition, when the user is on a highway, the volume for outputting the sound from the microphone 2 to the selected speaker may be higher than when the user is on a general road.

  Further, the preset setting may be stored not in the external storage unit 18 but in another nonvolatile storage medium (for example, a flash memory).

  Each function of the audio DSP 14 may be realized by a dedicated microcomputer executing a program for realizing these functions. Further, the control circuit 19 may be realized by executing a program for realizing these functions.

  The microphone 2 may be closer to other seats 60, 70, 80 than the driver seat 50. In that case, the seat closest to the microphone 2 corresponds to the first seat.

  Moreover, the audio input / output control device for a vehicle of the present invention does not necessarily have a navigation function. Further, the vehicle on which the vehicle audio input / output control device is mounted may not be a three-row seat vehicle.

1 is a diagram schematically showing the interior of a three-row seat vehicle 100 on which a vehicle navigation device 1 according to an embodiment of the present invention is mounted. It is a block diagram which shows the hardware constitutions of the navigation apparatus 1 for vehicles. 2 is a block diagram schematically showing a functional configuration of an audio DSP 14. FIG. It is a flowchart of the program which the control circuit 19 performs. It is a figure which shows the setting reception screen which the image display apparatus 12 displays.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle navigation apparatus, 2 ... Microphone, 3 ... Front row right speaker,
4 ... front row left speaker, 5 ... second row right speaker, 6 ... second row left speaker,
7 ... Third row right speaker, 8 ... Third row left speaker, 11 ... Position detector,
DESCRIPTION OF SYMBOLS 12 ... Image display apparatus, 13 ... Operation part, 14 ... Audio DSP, 16 ... RAM,
17 ... ROM, 18 ... external storage, 19 ... control circuit, 50 ... driver's seat, 60 ... passenger seat,
70 ... second row seat, 80 ... third row seat, 90 ... setting screen, 100 ... third row seat vehicle,
200 ... output destination setting window, 300 ... volume setting window,
400 ... mode setting window, 500 ... noise cancel setting window,
600: Echo cancel setting window, 700: Enter button.

Claims (4)

An operation unit for receiving the operation of the occupant;
Voice receiving means for receiving a voice signal from a voice input device mounted at a first position closest to the first seat among all seats in the vehicle interior;
A second position audio output device mounted at a second position closest to all the seats on a second seat different from the first seat; and a second position audio output device different from both the first seat and the second seat The audio signal received by the audio reception means is output to any one of the third position audio output devices mounted at the third position closest to all the seats to the 3 seats, and the audio signal is output. An audio input / output control device for a vehicle, comprising: output control means for switching the previous audio output device based on the operation received by the operation unit.   2. The vehicle audio input / output control device according to claim 1, wherein the output control means starts outputting the audio signal based on the fact that the occupant has uttered a predetermined word.   The vehicle voice input / output control device according to claim 1, wherein the first seat is a driver's seat.   The output control means outputs a music signal to a voice output device mounted in the second position or a voice output device in another vehicle interior, and the music is received from the voice signal received by the voice reception means. 2. The vehicle audio input / output control device according to claim 1, wherein a signal obtained as a result of removing the indicated portion is output to an audio output device mounted at the second position.

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