JP5201392B2 - Vehicle audio device - Google Patents

Description

  The present invention relates to an audio device for a vehicle, and more particularly to an audio device for a vehicle having a plurality of sound sources.

  An example of a conventional vehicle audio device is described in Patent Document 1 below. According to the technique described in Patent Document 1, the volume newly set when the volume is changed is stored in association with the vehicle speed, and a desired volume according to the vehicle speed is automatically set.

  In addition, an audio device for a vehicle is generally designed to output sound from a plurality of sound sources such as an AM radio, an FM radio, an MD player, and a CD player. The intensity of the audio signal from these sound sources is not necessarily the same. For example, the intensity of an audio signal from an in-vehicle player such as a CD player is usually higher than the intensity of an audio signal from a radio. Therefore, in the conventional vehicle audio device, the output balance between the sound sources is preset in order to prevent the sound volume from suddenly increasing when the sound sources are switched.

JP-A-9-160570

  However, the preset output balance between the sound sources is not always optimal for the user. For example, depending on the contents of a CD that the user frequently listens to and the reception state of radio waves from a radio station, the output balance between predetermined sound sources may be inappropriate.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an audio device for a vehicle that can output a sound volume desired by a user for each sound source.

In order to achieve the above object, an audio device for a vehicle according to the present invention includes a plurality of sound sources, a determination unit that determines a sound source in operation, a storage unit that stores volume setting information for each sound source, and the plurality of sound sources. An output means for processing a sound signal from one of the output signals based on the volume setting information and outputting sound; an adjusting means for adjusting the volume setting information; and an adjustment when the volume setting information is adjusted by the adjusting means. Updating means for storing later volume setting information in the storage means, the output means has a plurality of speakers, and the volume setting information is set separately for each sound source between the plurality of speakers. includes an output balance of the output means outputs the sound from the speakers in accordance with the output balance between the speaker for sound sources in operation, detects the seating seat seated occupant in the vehicle The output balance is set separately for each seating pattern comprising a combination of the seating seats, the plurality of sound sources include an AM radio, and the plurality of speakers are arranged in front of the passenger compartment. A front speaker disposed at a rear portion and a rear speaker disposed at a rear portion of the passenger compartment, and when the seating pattern is such that an occupant is seated on a rear seat of the passenger compartment, the active sound source is the AM radio. The output balance between the front speaker and the rear speaker at the time is more than the output balance between the front speaker and the rear speaker when the sound source in operation is other than the AM radio. The output balance of the speaker is set to be high .

Thus, according to the vehicle audio device of the present invention, the user can adjust the sound volume setting information such as the output balance for each sound source. As a result, the sound is output for each sound source with a desired output balance for the user. Then, by changing the output balance between the speakers according to the sound source, for example, in the case of sufficient sound to be heard only by the driving vehicle of the front seat, such as traffic information of AM radio, the output balance of the front speaker On the other hand, when it is desired to listen to the passenger in the rear seat like CD music, the output balance of the rear speaker can be increased.
Furthermore, in the present invention, since the sound is output based on the sound setting information stored for each sound source, it is possible to output the sound with the output balance between the speakers when the sound source after switching is operated last time. For example, when the sound source is switched from the CD player or the like to the AM radio again, the sound is output with the output balance between the speakers when the AM radio is operated last time. For this reason, according to the present invention, it is significantly less necessary to adjust the output balance between the speakers each time the sound source is switched. For example, when a passenger is seated in the rear seat and the sound is sufficient to listen only to the driver in the front seat, such as AM radio traffic information, increase the output balance of the front speaker. On the other hand, when it is desired to listen to the occupant in the rear seat like CD music, the output balance of the rear speaker can be increased. And, for example, when listening to music on a CD player and sometimes listening to traffic information such as highway radio under conditions where AM radio reception sensitivity is low, the conversation of passengers in the rear seats without adjusting the output balance one by one You can listen to traffic information without disturbing.
In the present invention, “speech” refers to a sound that human beings can recognize audibly, and is not limited to a language sound that a person utters through a vocal organ, and includes a wide range of non-language sounds such as music.

In the present invention, it is preferable that the volume setting information includes a volume level set independently for each sound source, and the output means outputs sound at a volume level set for the active sound source.
As a result, the sound is automatically output at the volume level when the sound source in operation is operated last time.

In the present invention, it is preferable that the volume setting information includes a volume balance between the plurality of sound sources, and the output means outputs a sound according to the volume balance of the sound source in operation.
As described above, when the user further finely adjusts the volume balance set at the time of normal product shipment, the sound is output at a volume desired by the user for each sound source.

Preferably, the present invention further includes a switching unit that switches between adjustment of the volume level by the adjustment unit and adjustment of the volume balance between the sound sources.
Thereby, it is possible to easily switch between the adjustment of the volume level output from the output means and the adjustment of the volume balance between the sound sources.

Embodiments of an audio device for a vehicle according to the present invention will be described below with reference to the accompanying drawings.
First, the configuration of the audio device for a vehicle according to the first embodiment will be described with reference to the block diagram of FIG.

  The vehicle audio device according to the present embodiment includes a plurality of sound sources 1, a determination unit 2 that determines the sound source 1 in operation, a storage unit 3 that stores volume setting information for each sound source 1, and one of the plurality of sound sources 1. An output means 4 for processing a sound signal from one of them based on the volume setting information and outputting the sound; an adjusting means 5 for adjusting the volume setting information; and when the volume setting information is adjusted by the adjusting means 5 And an update means 6 for storing later volume setting information in the storage means 3.

The sound source 1 includes an AM radio 1a and an FM radio 1b, a CD player 1c and an MD player 1d which are recording medium playback devices, and an external terminal 1e. A portable audio unit such as iPod (registered trademark) is connected to the external terminal 1e, and audio data of the portable audio unit is input from the external terminal 1e to the audio device of the vehicle.
A cassette tape player may be added to the sound source 1.

  The determination unit 2 is realized by, for example, a microcomputer or a microchip. And the determination means 2 detects the operating condition of each sound source 1a-1e, for example, the ON / OFF state of a switch, and determines the sound source currently operating.

  The volume setting information of the present embodiment includes a volume level (volume value) for each sound source. The storage means 3 stores a volume level (VOL) set independently for each sound source 1 as shown in Table 1 below.

  The adjusting means 5 is an operating means such as a normal volume dial. In addition, the form of the adjustment means 5 can be made into any suitable thing. For example, a push button type or a dial type may be used.

  The updating unit 6 is realized by, for example, a microcomputer or a microchip. When the volume level is adjusted by the adjusting unit 5, the update unit 6 stores the volume level after adjustment of the sound source in operation in the storage unit 3. For example, when the AM radio 1a is operating as the sound source 1, when the user operates the adjusting means 5 to raise the volume level from “VOL7” to “VOL20”, as shown in Table 2 below, AM Only the set volume level of the radio 1a is updated independently of other sound sources. On the other hand, the volume level of other sound sources such as FM radio 1b is not changed.

  The output means 4 has a normal car audio amplifier and speaker. And the output means 4 outputs a sound at the volume level set about the sound source in operation. For example, during the operation of the AM radio 1a, the output unit 4 outputs the sound at the volume level “VOL20” before the adjustment, and outputs the sound at the volume level “VOL20” after the adjustment.

  When the sound source is switched from the AM radio 1a to the CD player 1c, the output means 4 outputs sound at a volume level “VOL10” as shown in Table 2. Thus, since the volume level is set independently for each sound source, even if the volume level is raised while the AM radio 1a is operating, the volume level is increased as soon as the sound source 1 is switched and the CD player 1c is operated. Output is prevented.

  Further, when the sound source is switched from the CD player 1c to the AM radio 1a again, the output means 4 outputs the sound at the volume level when the switched sound source is operated last time. For example, as shown in Table 2, the output unit 4 outputs the sound again at the volume level “VOL20”. As described above, since the sound is output at the volume level when the sound source that is currently operating is operated last time, the necessity of adjusting the volume level every time the sound source is switched is significantly reduced. For example, it is particularly suitable when listening to traffic information such as Highway Radio (registered trademark) while listening to music with the CD player 1c and sometimes under circumstances where the reception sensitivity of the AM radio 1a is low.

Next, an operation example of the vehicle audio apparatus according to the first embodiment will be described with reference to the flowchart of FIG.
First, when the operation of the audio device of the vehicle starts or the sound source is switched (in the case of “Yes” in S21), the determination unit 2 determines the sound source 1 that is currently operating (S22). For example, when the AM radio 1a is operating when the main switch of the audio device of the vehicle is turned on, the determination unit 2 determines that the sound source 1 currently operating is the AM radio 1a. Even when the sound source is switched from the CD player 1c to the AM radio 1a, the determination unit 2 determines that the sound source 1 currently operating is the AM radio 1a.

  Subsequently, the output unit 4 reads the previous volume level of the AM radio 1a from the storage unit 3 (S23). When the storage unit 3 stores the previous volume level shown in Table 1, the output unit reads the volume level “VOL7” of the AM radio 1a.

  Then, the output means 4 sets the read previous volume level (S24). As a result, the sound of the AM radio 1a is output at the volume level “VOL7”.

  When the volume level is changed by the adjusting unit 5 (“Yes” in S25), the updated volume level is written in the storage unit 5 by the updating unit 6 (S26). For example, when the volume level of the AM radio 1a is changed from “VOL7” to “VOL20”, only the volume level of the AM radio 1a is rewritten as shown in Table 2 above. Thereby, when the AM radio 1a is operated next time, the sound is output at the volume level “VOL20”. As described above, according to the audio apparatus of the present embodiment, the volume level at the previous operation is stored independently for each sound source, so that the sound is output at a sound volume desired for the user for each sound source.

Next, an audio device for a vehicle according to a second embodiment will be described.
First, the configuration of an audio device for a vehicle according to the second embodiment will be described with reference to FIG. The audio apparatus for a vehicle according to the second embodiment is the same as that shown in FIG. 1 except that it further includes switching means 7 for switching between adjustment of the volume level by the adjustment means 5 and adjustment of the volume balance between the sound sources. This is basically the same as that of the first embodiment.

However, the volume setting information of this embodiment includes volume balance among a plurality of sound sources. The storage means 3 stores a volume balance coefficient between sound sources as shown in Table 3 below.
In the example shown in Table 3 below, the volume level of the audio signal input from the external terminal 1e is adjusted independently without setting the volume balance between the sound sources.

  Any suitable method can be adopted as a method for setting the volume balance. For example, it may be expressed as a ratio between sound sources as shown in Table 3 above, or may be expressed as a difference from a predetermined value. When the volume balance coefficient is set as a ratio, the sound may be output as a product of the volume level and the volume balance coefficient. When the volume balance coefficient is set as a difference from a predetermined value, the sound may be output as the sum or difference of the volume level and the volume balance coefficient.

  Any suitable configuration can be adopted as the configuration of the switching means 7. For example, the switching means 7 may be provided together with a volume dial as the adjusting means 5. Then, the switching unit 7 switches the adjustment target of the adjustment unit 5. That is, by switching the switching unit 7, the adjusting unit 5 can adjust the volume level or the volume balance for each sound source.

  However, in the present embodiment, when the volume level is adjusted, the volume level of each sound source except the external terminal 1e is changed in conjunction with the sound source 1 that is currently operating, except for the external terminal 1e. On the other hand, when the sound volume balance between the sound sources is adjusted, only the sound volume balance coefficient of the sound source operating at that time is changed, and the sound volume balance coefficients of the other sound sources are not changed.

  When the volume balance between the sound sources is adjusted by the adjusting means 5, the update means 6 stores the volume balance coefficient after adjustment of the sound source in operation in the storage means 3. For example, when the AM radio 1a is operating as the sound source 1, the user operates the adjusting means 5 to change the volume balance coefficient of the AM radio 1a from “0.7” to “1.2”. As shown in Table 4 below, only the volume balance coefficient of the AM radio 1a is updated independently of other sound sources. On the other hand, the coefficient of volume balance of other sound sources such as FM radio 1b is not changed.

  The output means 4 outputs sound according to the volume balance of the sound source that is operating. For example, while the AM radio 1a is operating at the volume level “VOL20”, the output unit 4 outputs the sound by multiplying the volume level “VOL20” by the volume balance “0.7” before the adjustment, and after the adjustment, The sound is output by multiplying the volume level “VOL20” by the volume balance “1.2”. Thus, by finely adjusting the volume balance between the sound sources, it is possible to output the sound with a sound volume desired by the user for each sound source.

  Even when the volume level is changed from “VOL20” to “VOL10”, for example, the output means 4 outputs the sound by multiplying the volume level “VOL10” by the volume balance “0.7” before the adjustment. After the adjustment, the sound volume is output by multiplying the volume level “VOL10” by the volume balance “1.2”.

  When the sound source is switched from the AM radio 1a to the CD player 1c, the output means 4 multiplies the volume level “VOL20” by the coefficient “1.0” of the volume balance of the CD player 1c shown in Table 2 to perform sound. Is output. In this way, even if the volume level setting is constant, the volume balance between the sound sources is set to a desired balance for the user. Therefore, as soon as the sound source 1 is switched from the AM radio 1a to the CD player 1c, the volume is increased. Is prevented from being output or the volume is insufficient.

  Further, when the sound source is switched from the CD player 1c to the AM radio 1a again, the output means 4 outputs the sound by multiplying the sound source after switching by the coefficient of the volume balance when the sound source was operated last time. For example, the output means 4 multiplies the volume level “VOL20” by the volume balance coefficient “1.2” of the AM radio 1a shown in Table 2 and outputs the sound again. Thus, since the sound is output by multiplying the coefficient of the volume balance when the sound source that is currently operated last time is operated, the sound is output at a desired sound volume for the user even if the sound source is switched.

Next, an operation example of the audio device for a vehicle according to the second embodiment will be described with reference to a flowchart of FIG.
First, when the operation of the audio device of the vehicle starts or the sound source is switched (in the case of “Yes” in S41), the determination unit 2 determines the sound source 1 that is currently operating (S42). For example, when the AM radio 1a is operating when the main switch of the audio device of the vehicle is turned on, the determination unit 2 determines that the sound source 1 currently operating is the AM radio 1a. Even when the sound source is switched from the CD player 1c to the AM radio 1a, the determination unit 2 determines that the sound source 1 currently operating is the AM radio 1a.

  Subsequently, the output unit 4 reads the coefficient of the volume balance between the previous sound sources (sources) of the AM radio 1a from the storage unit 3 (S43). When the storage unit 3 stores the volume balance coefficient shown in Table 3 above, the output unit reads the volume balance coefficient “0.7” of the AM radio 1a.

  Then, the output means 4 determines the product of the volume level and the read previous volume balance coefficient, and sets the output (S44). When the volume level is set to “VOL20”, the volume level “VOL20” is multiplied by the volume balance coefficient “0.7” of the AM radio 1a shown in Table 43 to output the sound.

  When the volume balance for each sound source is changed by the adjusting means 5 (“Yes” in S45), the updated volume balance coefficient is written in the storage means 5 by the updating means 6 (S46). For example, when the volume balance coefficient of the AM radio 1a is changed from “0.7” to “1.2”, only the volume balance coefficient of the AM radio 1a is rewritten as shown in Table 4 above. As a result, the next time the AM radio 1a is operated, the sound is output by multiplying the volume level by the volume balance coefficient “1.2”. As described above, according to the audio apparatus of the present embodiment, sound is output at a sound volume desired by the user for each sound source.

Next, an audio device for a vehicle according to a third embodiment will be described.
First, the configuration of an audio device for a vehicle according to the third embodiment will be described with reference to FIG. The configuration of the audio device for a vehicle according to the third embodiment is the same as that of the first embodiment shown in FIG. 1 except that it further includes a detecting means 7 for detecting a seating seat on which a passenger is seated in the vehicle. Basically the same as the thing. Any suitable configuration can be adopted as the form of the detection means 7. For example, you may utilize the seating detection apparatus which detects the presence or absence of wearing of a seatbelt.

  However, in the third embodiment, as shown in FIGS. 6 (a) and 6 (b), the output means 4 has a total of four speakers arranged on both sides of the front part and both sides of the rear part in the passenger compartment 50, respectively. Have

Also, the volume setting information of the present embodiment includes output balance between a plurality of speakers set separately for each sound source. The storage means 3 stores an output balance set independently for each sound source 1. In the present embodiment, the output balance is set separately for each seating pattern composed of a combination of seating seats.
Here, Table 5 below shows, for each sound source, the output balance between the speakers when no occupant is seated on the rear seat 53 in the passenger compartment 50 as shown in FIG.

  In the example shown in Table 5 above, the output balance between the speakers is set separately for the speakers 41 and 42 arranged at the front part of the vehicle and the speakers 43 and 44 arranged at the rear part. It is not limited to. For example, a difference may be added between the outputs of the left and right speakers.

  Further, Table 6 below shows, for each sound source, the output balance between the speakers when the occupant is seated in the rear seat 53 in the passenger compartment 50 as shown in FIG.

  In the example shown in Table 6 above, the seating pattern is divided depending on whether the rear seat 53 in the passenger compartment 50 is seated, but the seating pattern is not limited to this. For example, the seating pattern may be classified depending on whether the passenger seat 52 in the passenger compartment 50 is seated or whether the number of seats in the rear seat 53 is two or more. Furthermore, it is good also as a more detailed seating pattern by the combination of these seating patterns. Further, a difference may be made in the output balance between the left and right speakers depending on whether or not the passenger seat 52 is seated.

  As shown in FIG. 6A, when no occupant is seated in the rear seat 53, the output balance between the front and rear speakers for each of the sound sources 1a to 1e is as shown in Table 5 above. “5: 2” is set. On the other hand, as shown in FIG. 6B, when an occupant is seated in the rear seat 53, as shown in Table 6, the output between the front and rear speakers for each of the sound sources 1a to 1e. The balance is set to “5: 6”. As a result, when an occupant is seated in the rear seat 53, the occupant can hear the audio output of the audio device of the vehicle well.

  Further, the form of the adjusting means 5 can be arbitrarily suitable. For example, a switch for individually adjusting the output balance between the speakers may be provided, or only the output balance between the front and rear speakers may be adjusted or a switch may be provided. The switch may be a push button type or a dial type.

  The updating unit 6 is realized by, for example, a microcomputer or a microchip. When the adjusting means 5 adjusts the output balance between the speakers, the updating means 6 causes the storage means 3 to store the adjusted output balance of the sound source that is operating. For example, in the seating pattern in which an occupant is seated in the rear seat 53, when the AM radio 1a is operating, the user operates the adjusting means 5 to set the output balance between the front and rear speakers to “5”. : 6 ”to“ 5: 2 ”. In this case, as shown in Table 7 below, only the output balance between the speakers for the AM radio 1a is updated independently of the other sound sources. On the other hand, the output balance between the speakers is not changed for other sound sources such as the FM radio 1b.

  The output means 4 outputs sound at a volume level set for the sound source that is operating according to the seating pattern. For example, in the seating pattern in which an occupant is seated in the rear seat 53, during operation of the AM radio 1a, the output means 4 outputs the output balance between the front and rear speakers as shown in Table 6 before the adjustment. Is output as “5: 6”. After the adjustment, as shown in Table 7, the output means 4 outputs the output balance between the front and rear speakers at “5: 2”. In this way, when the passenger is seated in the rear seat 53, if the output balance of the rear speakers 43 and 43 is lowered, for example, the driver of the driver seat 51 does not disturb the conversation of the passenger in the rear seat 53. The traffic information of AM radio 1a can be heard well. Thus, according to the vehicle audio device of the present embodiment, the sound is output at a sound volume desired by the user for each sound source.

  When the sound source is switched from the AM radio 1a to the CD player 1c, the output means 4 outputs the sound with the output balance between the front and rear speakers set to “5: 6” as shown in Table 6. . Thus, since the output balance between the speakers is set independently for each sound source, even if the output balance of the rear speakers 43 and 44 is raised during operation of the AM radio 1a, the sound source 1 is switched and the CD player 1c is switched. When activated, the output balance is also switched so that it can be heard well by the passengers in the rear seat 53.

  Further, when the sound source is switched from the CD player 1c to the AM radio 1a again, the output means 4 outputs the sound with the output balance between the speakers when the sound source after switching is operated last time. For example, as shown in Table 7, the output unit 4 switches the output balance between the front and rear speakers to “5: 2” and outputs the sound again. As described above, since the sound is output with the output balance between the speakers when the sound source that is currently operated last time, the necessity of adjusting the output balance between the speakers every time the sound source is switched is significantly reduced. For example, while listening to music with the CD player 1c, sometimes listening to traffic information such as Highway Radio (registered trademark) under circumstances where the reception sensitivity of the AM radio 1a is low, particularly without disturbing the conversation of the passengers in the rear seat Is preferred.

Next, an operation example of the audio device for a vehicle according to the third embodiment will be described with reference to a flowchart of FIG.
First, when the operation of the audio device of the vehicle starts or the sound source is switched (in the case of “Yes” in S71), the determination unit 2 determines the sound source 1 that is currently operating (S72). For example, when the AM radio 1a is operating when the main switch of the audio device of the vehicle is turned on, the determination unit 2 determines that the sound source 1 currently operating is the AM radio 1a. Even when the sound source is switched from the CD player 1c to the AM radio 1a, the determination unit 2 determines that the sound source 1 currently operating is the AM radio 1a.

  Subsequently, the output unit 4 reads out data of the output balance between the speakers of the AM radio 1a from the storage unit 3 (S73). At that time, the output balance between the speakers to be read differs depending on the seating pattern detected by the detection means 7. Specifically, as shown in FIG. 6A, in the case of a seating pattern in which no occupant is seated on the rear seat 53, as shown in Table 5, the output between the front and rear speakers. A value of “5: 2” is read as the balance. On the other hand, as shown in FIG. 6 (b), in the case of a seating pattern in which an occupant is seated on the rear seat 53, as shown in Table 6 above, the front and rear speakers when the AM radio 1a is operated. A value of “5: 6” is read out as the output balance.

  And the output means 4 outputs an audio | voice from each speaker according to the output balance about the sound source in operation (S74). For example, in the case of a seating pattern in which an occupant is seated in the rear seat 53, the voice is output as “5: 6” as the output balance between the front and rear speakers.

  Further, when the output balance between the speakers is changed by the adjusting means 5 (in the case of “Yes” in S75), the updated output balance between the speakers is written in the storage means 5 by the updating means 6 (S76). For example, when the output balance of the front and rear of the AM radio 1a is changed from “5: 6” to “5: 2”, the output between the speakers when the AM radio 1a is operated as shown in Table 7 above. Only the balance is rewritten. Thereby, when the AM radio 1a is operated next time, the output balance between the front and rear speakers is set to “5: 2”, and sound is output. As described above, according to the audio apparatus of the present embodiment, sound is output at a sound volume desired by the user for each sound source.

  In each embodiment mentioned above, although the example which constituted the present invention on specific conditions was explained, the present invention can perform various change and combination, and is not limited to this. For example, in the second embodiment described above, the output balance between the sound sources except for the external terminals is set, but the volume level is set independently for some of the sound sources, and the remaining sound sources are set between the sound sources. An output balance may be set.

  In the second embodiment described above, the example in which the switching unit 7 is provided has been described. However, in the present invention, the switching unit 7 is not provided, and the volume level between the sound source and the unit for adjusting the volume level is adjusted as the adjustment unit. A means for finely adjusting the balance may be provided separately.

  In the third embodiment described above, the output balance between the speakers is adjusted by the adjusting means. However, the output balance between the speakers may be fixed for each sound source. In that case, the adjusting means can be omitted.

It is a block diagram explaining the structure of the audio apparatus of the vehicle of 1st Embodiment of this invention. It is a flowchart explaining operation | movement of the audio apparatus of the vehicle of 1st Embodiment of this invention. It is a block diagram explaining the structure of the audio apparatus of the vehicle of 2nd Embodiment of this invention. It is a flowchart explaining operation | movement of the audio apparatus of the vehicle of 2nd Embodiment of this invention. It is a block diagram explaining the structure of the audio apparatus of the vehicle of 3rd Embodiment of this invention. (A) And (b) is a plane schematic diagram in the vehicle interior of a vehicle. It is a flowchart explaining operation | movement of the audio apparatus of the vehicle of 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sound source 1a AM radio 1b FM radio 1c MD player 1d CD player 1e External terminal 2 Judgment means 3 Memory | storage means 4 Output means 5 Adjustment means 6 Update means 7 Switching means 41-44 Speaker 50 Car compartment 51 Driver's seat 52 Passenger seat 53 Rear part Seat 54 Child seat

Claims (4)

Multiple sound sources,
A determination means for determining a sound source in operation;
Storage means for storing volume setting information for each sound source;
Output means for processing a sound signal from one of the plurality of sound sources based on volume setting information and outputting sound;
Adjusting means for adjusting the volume setting information;
An update unit that stores the adjusted volume setting information in the storage unit when the volume setting information is adjusted by the adjustment unit;
With
The output means has a plurality of speakers,
The volume setting information includes an output balance between the plurality of speakers set separately for each sound source,
The output means outputs sound from each speaker according to the output balance between the speakers for the sound source in operation ,
A detecting means for detecting a seating seat on which an occupant is seated in the vehicle;
The output balance is set separately for each seating pattern consisting of a combination of the seating seats,
The plurality of sound sources include an AM radio,
The plurality of speakers include a front speaker disposed at a front portion of a passenger compartment and a rear speaker disposed at a rear portion of the passenger compartment.
When the seating pattern is such that an occupant is seated on the rear seat of the passenger compartment, the output balance between the front speaker and the rear speaker when the sound source in operation is the AM radio, and the sound source in operation is the AM radio. Is set so that the output balance of the front speaker is higher than the output balance of the front speaker and the rear speaker when it is other than
An audio device for a vehicle. The volume setting information includes the volume level set independently for each sound source,
2. The vehicle audio device according to claim 1 , wherein the output unit outputs sound at a volume level set for an operating sound source. 3. The volume setting information includes a volume balance between the plurality of sound sources,
The output means outputs sound according to a volume balance of the sound source in operation;
The vehicle audio device according to claim 1 , wherein the audio device is a vehicle audio device. A switching means for switching between the adjustment of the volume level by the adjusting means and the adjustment of the volume balance between the sound sources;
The audio device for a vehicle according to claim 3 .

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