JPH10258688A - On-vehicle audio output system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly control a plural number of audio signals by outputting the audio signals by changing output states of the audio signals to a sound generating means in accordance with a specified condition in the case when a plural number of the audio signals are superposed and input from a plural number of audio signal output devices. SOLUTION: An audio output control device 1 holds a control data to control audio output and controls an output state from speakers SP1-SP5 in accordance with the control data. The control data concerning precedence is, for example, that an audio signal concerning vehicle information and alarm is made higher in precedence from a view point of urgency. Additionally, when a portable telephone 19 receives a call, the audio signal from the portable telephone 19 is made intermediate in precedence so that conversation, etc., is not disturbed by other sound. In the same way, precedence of the audio signal from a navigation system 15 to provide information concerning traveling information is made intermediate, too. Conversely, the audio signal from other electronic devices such as an audio device, a personal computer, etc., is made the lowest in precedence equally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle audio output system suitable for uniformly managing audio output from a plurality of audio output devices installed in a vehicle cabin.

[0002]

2. Description of the Related Art In recent years, information electronic devices such as an in-vehicle display, a navigation system, an automobile telephone, and an audio device, which are mounted on a vehicle such as a passenger car, have been developed, and the in-vehicle equipment has been significantly enhanced in function. Further, in order to improve the safety of the vehicle, a system for notifying vehicle information or an abnormality during traveling of the vehicle, for example, an inter-vehicle distance or the like by voice has been generalized. Therefore, a plurality of devices that emit sound are generally provided in the interior of recent vehicles.

[0003]

However, if voices are emitted from a plurality of devices in a vehicle interior in a redundant manner, the voices are not unified and have a disadvantage that it is difficult to hear. In addition, for example, even when an emergency alarm sounds while listening to music at a high volume by the audio device, the alarm sound is drowned out by the sound from the audio device, and it is difficult to notify the driver or the like of an emergency situation. Sometimes. Further, if the speakers from which sound is output differ from device to device, the proportion of the speakers occupied by each device increases, and there is also a drawback that the limited space in the vehicle compartment cannot be used effectively. Further, since a speaker is required for each device, the cost of each device is increased.

The present invention has been made in view of the above circumstances, and an object of the present invention is to enable a speaker provided in a vehicle compartment to be shared by a plurality of devices, and to unify a plurality of types of audio signals. An object of the present invention is to provide a vehicle-mounted audio output system that can be managed.

[0005]

According to the present invention, there is provided an on-vehicle audio output system provided in a vehicle interior, wherein at least one sound generating means capable of generating audio signals from a plurality of audio signal output devices is provided. Audio signal output device and the sound generation means, and audio output adjustment means capable of outputting audio signals from the plurality of audio signal output devices to the sound generation means, wherein the audio output adjustment means When a plurality of audio signals are input from a plurality of audio signal output devices in a redundant manner, the output state of the audio signal to the sound generating means is changed and output according to predetermined conditions.

A vehicle audio output system according to the present invention comprises:
Preferably, the audio output adjusting unit preferentially selects an audio signal having a high priority and outputs the selected audio signal to the sound generating unit.

[0007] A vehicle audio output system according to the present invention comprises:
Preferably, the sound generating means includes a plurality of sound generating means, and the sound output adjusting means determines a predetermined sound signal when a sound signal having a higher priority than the inputted sound signal is inputted in duplicate. A high-priority audio signal is output to the sound generating means, and a low-priority audio signal is output to the other sound generating means.

[0008] An on-vehicle audio output system according to the present invention comprises:
Preferably, the audio output adjustment means adjusts each audio signal to be output to a predetermined volume and outputs the audio signal.

A vehicle audio output system according to the present invention comprises:
Preferably, when the audio signal having a higher priority than the input audio signal is input in duplicate, the audio output adjusting means may switch the audio signal having a lower priority than the audio signal control signal having a higher priority. Is also adjusted to a lower volume and output to the sound generator.

[0010] The on-vehicle audio output system according to the present invention comprises:
Preferably, the sound generating means includes a plurality of sound generating means, and the sound output adjusting means determines a predetermined sound signal when a sound signal having a higher priority than the inputted sound signal is inputted in duplicate. A high priority audio signal is output to the sound generating means, a low priority audio signal is output to the other sound generating means, and the low priority audio signal is output at a lower volume than the high priority audio signal control signal. And outputs it to the sound generating means.

In the vehicle audio output system according to the present invention, since a plurality of audio signal output devices are connected to the sound generation device via the selection device, the plurality of audio signal output devices can share the sound generation device. it can. Further, when a plurality of audio signals are input to the audio output adjustment unit in an overlapping manner, the audio output adjustment unit changes an output state of the audio signal to the sound generation unit according to a predetermined output condition. Since the sound is output, the sound in the vehicle cabin can be uniformly managed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration diagram of an on-vehicle audio output system according to the present embodiment. In FIG. 1, a radio tuner 3 and a
CD (compact disk) device 5, tape playback device and MD (mini disk) device 7, TV tuner 9, D
The audio signal output lines of the VD device 11, the personal computer 13, the navigation system 15, the emergency alert device 17, the mobile phone 19, and other audio signal output devices are connected.
The audio output adjustment device 1 includes speakers SP1 to SP
5 is connected. The speakers SP1 to SP5 are arranged in the passenger compartment 51 of the vehicle 50, the speaker SP1 is provided on the driver's seat side (right side) of the front part, and the speaker SP2 is provided on the passenger seat side (left side) of the front part. S
P3 is provided on the right side of the rear part, and speaker SP4 is provided on the left side of the rear part. Also, the speaker SP5 is
It is installed at other predetermined places in the vehicle interior. The speaker SP1 provided on the driver's seat side of the front portion is closest to the driver, and is at a position suitable for notifying the driver of an alarm or the like while the vehicle is running.

The audio output adjusting device 1 is installed at a predetermined position such as a lower part of a dashboard or a trunk room. When a plurality of audio signals are redundantly input from a plurality of audio signal output devices, the audio output adjustment device 1 changes the output state of the audio signal to the sound generating means according to a predetermined condition and outputs the output. However, the output form will be described later.

The above-mentioned radio tuner 3, CD (compact disk) device 5, tape reproducing device and MD
(Mini-disc) The sound from the device 7, the TV tuner 9, the DVD device 11, and the personal computer 13 generally does not include information having a high degree of urgency such as vehicle safety. It is considered that there is no problem even if an emergency warning of the vehicle is output while listening to

The mobile phone 19 generates a voice signal when the mobile phone 19 receives a call, and outputs the voice signal to the voice output adjusting device 1. In general, the mobile phone 19 generates a ringing tone at the time of an incoming call. However, if other sounds are output in the vehicle cabin, the ringing tone from the mobile phone 19 may be difficult to hear. When voice is flowing from the surroundings, it may be difficult to talk. Therefore, for example, when the mobile phone 19 receives an incoming call while the sound from the audio device is flowing from the speakers SP1 to SP5, the sound signal from the mobile phone 19 is preferentially output to any of the speakers SP1 to SP5. Thus, the above-mentioned inconvenience is resolved.

The navigation system 15 displays a map of a predetermined range centering on the current position on the display, allows the user to check the current driving position through the display, and also notifies the current driving position information and the like by voice. It is a system that can do it.

The emergency warning device 17 outputs an audio signal relating to information and a warning for notifying the state of the vehicle and an abnormality during traveling. For example, a sound that informs the driver or passenger of information necessary for improving the safety of the driver and passengers, such as the state of the seat belt not being worn, the presence or absence of the release of the parking brake, the state of the half door, the power supply abnormality of the vehicle, and the temperature of the engine. Signal. This is because the driver can perceive the information more quickly if he or she notifies the driver visually, rather than visually notifying the driver.

Next, an example of the operation of the on-vehicle audio output system according to this embodiment configured as described above will be described. The audio output adjustment device 1 holds control data to control the audio output, and controls the output state from the speakers SP1 to SP5 according to the control data.

Embodiment 1 The audio output adjusting device 1 includes, as control data, only control data relating to priority for specifying the priority of audio signals output from a plurality of audio signal output devices and only a single audio signal. Control data relating to speaker specification for designating a speaker to be output when input and specifying which speaker to output each audio signal when a plurality of audio signals are redundantly input; A description will be given of a case in which control data relating to volume adjustment when changing the volume of each audio signal is provided. Each data is determined according to the urgency of each audio signal or the preference of the driver or the like.

The control data relating to the priority is, for example,
The voice signal relating to the vehicle information / warning has the highest priority from the viewpoint of urgency. In addition, when the mobile phone 19 receives a call, a navigation signal that sets the priority of the voice signal from the mobile phone 19 to the middle order and similarly provides information on driving information so that conversation and the like are not disturbed by other voices. The priority of the audio signal from the system 15 is also medium, and the audio signal from another electronic device such as another audio device or a personal computer is equally given the lowest priority. When only a single audio signal is input to the selection circuit 4, the control data relating to the speaker designation is data instructing to output the audio signal to all the speakers SP1 to SP5. When the audio signals are inputted to the selection circuit 4 in duplicate, it is instructed to output the audio signal with the higher priority to the speaker SP1 and to output the audio signal with the lower priority to the remaining speakers SP2 to SP5. Content. When only a single audio signal is input to the selection circuit 4, the control data relating to the volume adjustment is such that the volumes output from all the speakers SP1 to SP5 are unchanged, and a plurality of audio signals overlap. When input to the selection circuit 4, the volume output from the speaker SP1 is unchanged, and the remaining speakers SP2 to SP
5 is to instruct to reduce the volume output from 5 to a predetermined value.

Next, the audio output adjusting device 1 reads out each of the above control data and is in a state of waiting for an input of an audio signal. For example, when the audio signal with the lowest priority such as the radio tuner 3 or the CD device 5 is input to the audio output adjustment device 1, it is recognized that the audio signal with the lowest priority is input, The audio signal is output to all speakers SP1 to SP5. Also, the audio output adjustment device 1
Since only the audio signal of the lowest priority is input, the volume output from all speakers SP1 to SP5 remains the volume input to the audio output adjustment device 1. As a result, audio signals with the lowest priority such as audio audio are output from the speakers SP1 to SP5 at the same volume as that input to the audio output adjustment device 1.

In the above state, for example, when a voice signal relating to vehicle information / warning is input from the emergency warning device 17 to the voice output adjusting device 1, the voice output adjusting device 1 outputs the highest priority voice signal. Recognize the input. Then, the sound output adjustment device 1 outputs a sound signal relating to vehicle information / warning to the speaker SP1, and outputs sound signals having lower priorities to the remaining speakers SP2 to SP2.
5, an audio signal having a low priority such as an audio sound is output. In addition, the audio output adjustment device 1 keeps the volume output from the speaker SP1 unchanged, and the remaining speakers SP2 to SP2.
The volume output from SP5 is decreased to a predetermined level. As a result, a sound notifying vehicle information / alarm is output from the speaker SP1, and the volume of audio sound and the like output from the remaining speakers SP2 to SP5 is reduced.

As a result, the sound for notifying the vehicle information and the warning output from the speaker SP1 provided on the right side of the driver's seat is not canceled out by the audio sound output from the remaining speakers SP2 to SP5. Can immediately detect vehicle information and warnings.

When the input of the audio signal relating to the vehicle information / warning to the audio output adjusting device 1 is completed, the input of the audio signal to the audio output adjusting device 1 becomes only the audio signal having a low priority, and the audio signals are output from the speakers SP1 to SP5. The audio sound or the like is output again at the original volume.

Similarly, when an audio signal is output from the mobile phone 19 or the navigation system 15 to the audio output adjusting device 1 in a state where audio audio is output from the speakers SP1 to SP5, the audio output device is similarly installed on the driver's seat side. The ringing sound of the mobile phone 19 or the information sound from the navigation system 15 is output from the speaker SP1 and the speakers SP2 to SP5 other than the speaker SP1 have lower priority than the audio signals of the mobile phone 19 and the navigation system 15. An audio sound or the like is output in a state where the volume is lowered. As a result, the ringing sound of the mobile phone 19 and the information sound from the navigation system 15 are not erased by the audio sound or the like.
The driver can immediately sense an incoming call of the mobile phone 19 and information from the navigation system 15. In addition,
When the conversation by the mobile phone 19 or the output of the information sound from the navigation system 15 is completed and the input of the middle priority audio signal to the audio output adjustment device 1 is completed, the audio sound is again output from the speakers SP1 to SP5. Are output.

Embodiment 2 Next, the audio output adjusting device 1 receives only control data relating to the priority for specifying the priority of audio signals output from a plurality of audio signal output devices and only a single audio signal. In the case where there is control data relating to speaker designation for designating a speaker to be output when a plurality of audio signals are input when a plurality of audio signals are input in a duplicated manner, I do. The control data relating to the priority is the same as in the first embodiment. In the control data relating to speaker designation, when audio signals having different priorities are input in duplicate, the audio signal having the higher priority is output to SP1, and the audio signal having the lower priority is assigned to the remaining speakers SP2. To SP5.

Under the above conditions, the speakers SP1 to SP1
In the state where the audio signal of the lowest priority such as audio audio is output from SP5, the audio output adjusting device 1
When a voice signal relating to vehicle information / warning is input from the emergency warning device 17, the voice output adjusting device 1 recognizes that a voice signal having the highest priority is input. As a result, an emergency alert is output from the speaker SP1, and low priority voices such as audio voices are not output. SP2
SP5 outputs audio sound and the like. Also,
The same applies to the case where the audio signal from the mobile phone 19 or the navigation system 15 is input to the audio output adjustment device 1 in a state where the audio signal with the lowest priority such as the audio audio is output from the speakers SP1 to SP5. It is.

As described above, an audio signal having a high priority is assigned to S
By outputting from P1 and outputting a low priority audio signal from another speaker, it is possible to prompt a driver or the like to quickly sense high priority audio information.

Embodiment 3 Next, as the control data, control data relating to the priority for specifying the priority of audio signals output from a plurality of audio signal output devices and the volume of each input audio signal are changed. A description will be given of a case in which control data relating to the volume adjustment is provided. In this case, the audio output adjusting device 1
In the case where audio signals having different priorities are input to the audio output adjusting device 1 in an overlapping manner, the audio output adjusting device 1 outputs the higher priority audio signals to the SP1 to SP5 with higher volume and lower audio signals. Is output at a low volume to SP1 to SP5.

Under the above conditions, the speakers SP1 to SP1
In the state where the audio signal of the lowest priority such as audio audio is output from SP5, the audio output adjusting device 1
When a voice signal relating to vehicle information / warning is input from the emergency warning device 17, the voice output adjusting device 1 recognizes that a voice signal having the highest priority is input, and the speaker SP
Sounds related to vehicle information / warning are output at a high volume from 1 to SP5, and low priority audio such as audio sounds output from the speakers SP1 to SP5 is reduced to a predetermined volume. The same applies to a case where a middle priority audio signal is input. By adopting such an output form, the same operation and effect as in the case of the first and second embodiments described above.
The effect will be achieved.

As described above, according to the on-vehicle audio output system according to the present embodiment, the sound of the predetermined high-priority audio signal is preferentially output at a large volume, so that a plurality of sounds are output. It is possible to prevent a disadvantage that a voice of high importance due to being outputted repeatedly is erased by another voice.

Further, according to the on-vehicle audio output system according to the present embodiment, since the speakers SP1 to SP5 are shared with a plurality of electronic devices such as the audio device and the mobile phone 19, a speaker is required for each device. The cost can be reduced, and the space in the vehicle compartment can be effectively utilized.

Further, the vehicle audio output system according to the present embodiment is configured such that an existing audio device, a mobile phone 19, a personal computer 13 or the like is connected to the speaker SP via the audio output adjustment device 1.
1 to SP5, and the cost can be minimized without the need to modify a plurality of onboard electronic devices.

In this embodiment, the speakers SP1 to SP1 when the audio signals are input from a plurality of devices in duplicate.
The audio output form from SP5 is not limited to the above-described embodiment.
Speakers that output to P1 and SP2 or output higher priority audio signals at high volume are SP1 and S2.
P2 or the like is also possible.

[0035]

As described above, according to the present invention,
It is possible to prevent a disadvantage that a voice of high importance due to a plurality of voices being output in an overlapping manner is erased by another voice. In addition, since the audio signal from the device that generates a plurality of audio signals is output to the sound generation unit via the audio signal output adjustment unit, the plurality of audio signals can be uniformly managed. Furthermore, since the sound generating means can be shared by the devices that generate a plurality of audio signals, the sound generating means is not required for each device, thereby reducing costs and effectively utilizing the space in the vehicle interior. can do.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an on-vehicle audio output system according to an embodiment.

FIG. 2 is an explanatory diagram illustrating an example of an arrangement of speakers provided in a vehicle cabin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Audio output adjustment apparatus 3 ... Radio tuner 5 ... CD apparatus 7 ... Tape reproducing apparatus, MD 9 ... TV tuner 11 ... DVD apparatus 13 ... PC 19 ... Mobile phone SP1-SP5 ... Speaker

Claims (6)

[Claims] At least one sound generating means provided in a vehicle interior and capable of emitting sound signals from a plurality of sound signal output devices, connecting the plurality of sound signal output devices and the sound generating means, Audio output adjusting means capable of outputting audio signals from the plurality of audio signal output devices to the sound generating means, wherein the audio output adjusting means overlaps a plurality of audio signals from the plurality of audio signal output devices. An in-vehicle audio output system that changes an output state of an audio signal to the sound generating means according to a predetermined condition and outputs the audio signal according to predetermined conditions. 2. The on-vehicle audio output system according to claim 1, wherein said audio output adjusting means selects an audio signal having a higher priority order and outputs it to said sound generating means. 3. The sound generating means comprises a plurality of sound generating means, and the sound output adjusting means is provided when a sound signal having a higher priority than the inputted sound signal is inputted in duplicate. 3. The on-vehicle audio output system according to claim 2, wherein a high-priority audio signal is output to a predetermined sound generation unit, and a low-priority audio signal is output to another sound generation unit. 4. The on-vehicle audio output system according to claim 1, wherein said audio output adjustment means adjusts each audio signal to be output to a predetermined volume and outputs the audio signal. 5. An audio output control means for controlling an audio signal having a lower priority when an audio signal having a higher priority than an input audio signal is input in duplicate. The on-vehicle audio output system according to any one of claims 1 to 4, wherein the volume is adjusted to a lower volume than the signal and output to the sound generation unit. 6. The sound generating means comprises a plurality of sound generating means, and the sound output adjusting means is provided when a sound signal having a higher priority than the inputted sound signal is inputted in duplicate. Outputting a high-priority audio signal to a predetermined sound generating means, outputting a low-priority audio signal to another sound generating means, and outputting a low-priority audio signal over a high-priority audio signal control signal. The on-vehicle audio output system according to any one of claims 3 to 5, wherein the volume is adjusted to a low volume and output to the sound generation unit.