JPH09330089A - Voice control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a voice control device which can automatically change sound volume and sound quality and the like of a guide voice depending on surrounding environment from which a guide voice is uttered, and by which navigation being effective for a driver can be performed. SOLUTION: In a voice control device constituted with a navigation system 20, a microcomputer 22 (11) arranged in an audio reproducing device 10, an audio control device 13, and a mixer 15, a voice cancel device 14 canceling a vocal voice of a musical source is arranged between the audio control device 13 and the mixer 15, and the microcomputer 22 (11) is provided with a voice cancel signal sending means, a voice cancel performing means, and a voice cancel stop signal sending means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice control device, and more particularly to a voice control device for controlling a voice including a guide voice of a navigation system.

[0002]

2. Description of the Related Art A navigation system for displaying a current position of a vehicle, a route to a destination, etc. and guiding a driver has been installed in many vehicles such as automobiles. Such navigation systems include
There is a satellite navigation system known by the name of Global Positioning System (hereinafter referred to as GPS), which receives signals transmitted from a plurality of geostationary satellites and own vehicle based on the received signals. The current position of can be calculated and displayed accurately. Therefore, the driver can drive to the destination with confidence while confirming the position of the vehicle.

In the above navigation system, not only is the position of the vehicle displayed as an image, but when a vehicle is approaching an intersection that requires a left or right turn, it is common to give a guide voice to that effect. is there. The driver recognizes the next operation to be performed by the guide voice.

On the other hand, a vehicle is equipped with an audio reproducing device at a higher penetration rate than the above navigation system. When both the audio reproducing device and the navigation system are installed in the vehicle, a single unit is used. There are cases where both sounds are emitted by the speaker and cases where the respective sounds are emitted by separate speakers.

In any of the cases, the volume of the guide voice in the navigation system is usually uttered at a constant volume even if the user may manually set the volume.

[0006]

As described above, for example, when both the audio reproducing device and the navigation system are installed in the vehicle, when the guide sound is emitted in the navigation system, the audio source audio from the audio reproducing device is emitted. Is emitted, it becomes difficult to hear the guide voice, and there is a possibility that the driver does not sufficiently perform the above function of recognizing the operation to be performed next.

Similarly, vehicle noise, vehicle interior noise, and the like make it difficult to hear the guide voice, and there is a possibility that the function of the guide voice may not be sufficiently fulfilled.

As described above, even if the voice of another music source is emitted, or even if the volume level of vehicle noise or vehicle interior noise is increased, the guide voice is emitted at a constant volume. There was a problem that it was easy to hear the voice.

The present invention has been made in view of the above problems, and it is possible to automatically change the volume, sound quality, etc. of the guide voice depending on the surrounding environment in which the guide voice is emitted.
It is an object of the present invention to provide a voice control device capable of performing effective navigation for a driver.

[0010]

Means for Solving the Problems and Effects Thereof In order to achieve the above object, a voice control device (1) according to the present invention includes a microcomputer, an audio control device and a mixer equipped in a navigation system and an audio reproducing device. In the voice control device configured as described above, a voice cancel device that cancels a vocal voice of a music source is provided between the audio control device and the mixer, and the microcomputer cancels a voice cancel signal by determining whether to emit a guide voice. A voice cancel signal transmitting means for transmitting the voice cancel signal, a voice cancel executing means for receiving the voice cancel signal to cancel the vocal voice, and a voice for transmitting a voice cancel stop signal upon determining the end of the guide voice transmission. Cancel stop signal It is characterized by comprising a signal means.

According to the voice control device (1), when the guide voice is emitted, the voice cancel signal transmitting means transmits the voice cancel signal, and the voice cancel executing means performs the music source based on the voice cancel signal. Vocal voice of is canceled. Therefore, the guide voice and the vocal voice of the music source do not overlap each other, and the guide voice can be easily heard.

When the transmission of the guide voice is finished, the cancellation of the vocal voice of the music source is canceled by the transmission of the voice cancel stop signal by the voice cancel stop signal transmitting means, and the voice of the music source including the vocal voice is canceled. The service will be resumed. Therefore, after the guide information by the guide voice is acquired, the voice of the favorite music source can be immediately reproduced, so that the user can obtain the guide information without being substantially restricted from listening to the favorite music source. be able to.

A voice control device (2) according to the present invention.
A volume control device for changing the volume of a guide voice between a navigation control unit and the mixer in a voice control device including a microcomputer equipped in a navigation system and an audio playback device, an audio control device, and a mixer. The music source volume control means for controlling the volume of the music source to a level not more than a predetermined amount by the microcomputer determining the transmission of the guide voice, and the volume of the music source and the volume of the guide voice have a predetermined ratio. And a guide voice volume changing means for changing the volume of the guide voice.

According to the voice control device (2), when the guide voice is emitted, the volume of the music source is controlled to a level below a predetermined amount by the music source volume control means, and the guide voice volume changing means controls the volume. The volume of the guide voice is controlled to a voice having a volume of a predetermined ratio to the volume of the controlled music source. Therefore, when the volume of the music source exceeds the level of the predetermined amount, the volume of the music source is once reduced to a level equal to or lower than the predetermined amount, and then a large volume having a predetermined ratio with respect to the level is set. The guide voice is emitted. Therefore, even if the guide voice and the voice of the music source are uttered in duplicate, the volume of both is automatically adjusted so that the guide voice is easily heard.

A voice control device (3) according to the present invention.
Is a voice control device that includes a microcomputer equipped in a navigation system and an audio playback device, an audio control device, and a mixer, and is the most of the audio of the music source between the audio control device and the mixer. A voice band detecting means for detecting a voice band of a low volume level is provided, and a voice for changing a guide voice between the navigation control section and the mixer to a voice having a voice band detected by the voice band detecting means. It is characterized by being equipped with a change device.

According to the voice control device (3), when the guide voice is emitted, the voice band detecting means detects the voice band of the lowest volume level among the voices of the music source, and the voice changing device. Thus, the guide voice is automatically changed and controlled to the voice having the detected voice band. Therefore, the main voice band of the music source (the voice band at the highest volume level in the voice) and the voice band of the guide voice are necessarily different, and the guide voice and the music source voice overlap. Even when the voice is uttered by the driver, it is possible to easily distinguish the guide voice by the driver due to the difference in the voice band.

A voice control device (4) according to the present invention.
Is a voice control device configured to include a microcomputer installed in a navigation system and an audio reproducing device, an audio control device, and a mixer, while an engine speed detecting device is connected to the microcomputer,
A voice changing device is provided between the navigation control unit and the mixer, and the microcomputer includes voice changing means for changing the guide voice to a voice having a sound quality and a volume corresponding to the engine speed. I am trying.

According to the voice control device (4), the vehicle noise data corresponding to various engine speeds and the sound quality / volume data of the guide voice that can be heard when mixed with the vehicle noise are previously stored. By storing in the microcomputer, when the guide sound is emitted, the engine speed detecting device detects the engine speed, and then the sound changing means outputs the sound quality and the volume corresponding to the detected engine speed. The guide voice is automatically controlled by the voice that it has.

The detection of the engine speed is usually performed in a navigation system,
Since it can be realized relatively easily in terms of function, automatic control of the sound quality and volume of the guide voice can be easily performed without complicating the configuration of the voice control device.

Further, the voice control device (5) according to the present invention.
In a voice control device configured to include a microcomputer equipped in a navigation system and an audio playback device, an audio control device, and a mixer, a vehicle speed detection device is connected to the microcomputer, while a navigation control unit and the mixer are connected. A voice changing device is provided in between, and the microcomputer is provided with voice changing means for changing the guide voice to a voice having a sound quality and a volume corresponding to the vehicle speed.

According to the voice control device (5), the vehicle noise data corresponding to various vehicle speeds and the sound quality / volume data of the guide voice that can be heard when mixed with the vehicle noise are stored in the microcomputer in advance. When the input voice is input and the vehicle speed is detected by the vehicle speed detection device when the guide voice is emitted, the voice changing unit controls the guide voice to a voice having a sound quality and a volume corresponding to the detected vehicle speed. .

Further, since the detection of the vehicle speed is normally performed in the navigation system and can be realized relatively easily in terms of function, the guide voice can be realized without complicating the configuration of the voice control device. Automatic control of sound quality and volume can be easily performed.

The voice control device (6) according to the present invention is a voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer. While the detection device is connected, a voice changing device is provided between the navigation control unit and the mixer, and the microcomputer changes the guide voice to a voice having a sound quality and a volume corresponding to an in-vehicle noise level. It is characterized by having.

According to the voice control device (6), data of various in-vehicle noise levels and data of sound quality and volume of the guide voice that can be heard when mixed with the in-vehicle noise are input to the microcomputer in advance. However, when the in-vehicle noise level detecting device detects the in-vehicle noise level when the guide voice is emitted, the voice changing means outputs the guide voice to the voice having the sound quality and the volume corresponding to the detected in-vehicle noise level. Controlled.

Further, the detection of the noise level in the vehicle can be performed relatively easily by, for example, installing a microphone in the vehicle, and the sound quality of the guide voice can be improved without complicating the configuration of the voice control device. The volume can be automatically controlled easily.

The in-vehicle noise is noise with respect to the guide voice and includes voice from a music source or the like, and the audibility of the guide voice substantially depends on the in-vehicle noise level. Therefore, the sound quality according to the in-vehicle noise level
By uttering a guide voice having a volume, the function of the guide voice can be fully exerted.

The voice control device (7) according to the present invention is a voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer. While the vehicle interior noise detection device is equipped through the voice band detection means for detecting the voice band of the lowest volume level among them, the voice change device is provided between the navigation control unit and the mixer, and the microcomputer is A voice changing unit for changing the guide voice to a voice having the voice band detected by the voice band detecting unit is provided.

According to the voice control device (7), when the guide voice is emitted, the in-vehicle noise level detecting device detects the in-vehicle noise level and the voice band detecting means causes the lowest in-vehicle noise. The voice band of the volume level is detected, and the voice changing unit automatically controls the guide voice having the detected voice band. Therefore, the main voice band of the in-vehicle noise and the voice band of the guide voice can be inevitably different from each other. Therefore, it is possible to easily distinguish the guide voice by the driver due to the difference in the voice band.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION A voice control device according to an embodiment of the present invention will be described below with reference to the drawings.

<First Embodiment> FIG. 1 is a block diagram schematically showing a configuration of a voice control device according to a first embodiment. The signal lines shown by solid lines in the figure show bus lines through which control signals are communicated, and the signal lines shown by arrows in the figure show audio signal lines.

In the figure, reference numeral 11 denotes a microcomputer on the side of the audio reproducing apparatus 10, and this microcomputer 11 has, for example, a C
An audio player 12 for extracting a music signal from a music source such as D, an audio control device 13 for controlling the volume of the music source, B. P. Voice canceling device 1 including F (band pass filter) and the like
4. A mixer 15 for mixing a voice signal from a music source and a guide voice signal in the navigation system is connected. The audio reproducing device 10 includes the microcomputer 11, the audio player 12, the audio control device 13, the voice cancel device 14, the mixer 15, the amplifier 16 for amplifying the signal synthesized by the mixer 15, and the speaker 17 for outputting the sound. Has been done.

The microcomputer 11 is the audio player 1
2 to the mixer 15 as well as the microcomputer 22 in the navigation control unit 21 on the navigation system 20 side are connected by a bus line 22a, and communication is performed between them. Although not shown in the figure, the navigation control unit 21 includes an input means including a mouse, a display for displaying a screen, a CD-ROM player in which map information and the like are stored, a GPS antenna, and the like.
Similarly, although not shown, devices necessary for operating the navigation system, such as a vehicle speed sensor and a geomagnetic sensor, are connected. A navigation system 20 is configured by including a navigation controller 21 to which these devices are connected, and the mixer 15, the amplifier 16, and the speaker 17 described above.

Next, the operation of the microcomputer 11 and the microcomputer 22 of the voice control device configured as described above will be described with reference to FIG. 2A is a flow chart showing the operation of the microcomputer 11 according to the first embodiment, and FIG. 2B is a flowchart showing the operation of the microcomputer 22 according to the first embodiment. A control signal is sent from the microcomputer 11 to the audio player 12, the audio control device 13, the voice canceling device 14, and the mixer 15, so that the desired sound source can provide a desired sound volume, which is normally used in the vehicle without voice cancellation. Audio is provided. On the other hand, the microcomputer 22 always determines whether or not to send the guide voice based on the situation of navigation (S101 in FIG. 2B), and when it is determined not to send the guide voice, the above situation is continued. On the other hand, for example, when the vehicle is approaching a required intersection such as turning left or right, a guidance voice will be emitted in the navigation system, and after the microcomputer 22 determines in step 101 to emit the guidance voice, the voice cancel signal p Is transmitted to the microcomputer 11 (S10
2).

The microcomputer 11 executes step 11 (see FIG. 2).
In (a)), it is determined whether or not the voice cancel signal p is received. When it is determined that the voice cancel signal p from the microcomputer 22 is received, the process proceeds to step 12, and the voice cancel device 14 receives the voice cancel signal. Send a signal to instruct execution. Voice cancel device 14
Then, the vocal voice of the music source is canceled based on this instruction signal, and the music source signal with the vocal voice canceled is sent to the mixer 15.

At about the same time, the microcomputer 22 transmits a guide voice (FIG. 2B, S103), and the guide voice signal is sent to the mixer 15. The mixer 15 mixes the signal from the music source in which the vocal voice has been canceled with the guide voice signal to form a mixed voice signal in which the guide voice is easily heard, and the formed mixed voice signal is amplified by the amplifier 16 After being sent to and amplified, the sound is emitted from the speaker 17.

Further, the microcomputer 22 determines in step 104 whether or not the transmission of the guide voice is completed. When it is determined that the transmission of the guide voice is completed, the process proceeds to step 105,
A voice cancel stop signal q is transmitted to the microcomputer 11.

The microcomputer 11 executes step 13 (see FIG. 2).
In (a)), it is judged whether or not the voice cancel cancel signal q from the microcomputer 22 is received. When it is judged that the voice cancel cancel signal q is received, the process proceeds to step 14 to cancel the voice cancel in the voice cancel device 14. To do. Then, the normal audio signal from the music source is sent to the mixer 15, and at this time, since the guide sound is not captured in the mixer 15, only the normal audio signal from the music source is sent to the amplifier 16 and is amplified. , Speaker 17
Will be emitted as a sound through.

Steps 101 and 102 (see FIG. 2)
(B)) constitutes the voice cancel signal transmitting means A, the steps 11 and 12 (FIG. 2 (a)) constitute the voice cancel execution means B, and further the steps 104, 105 (FIG. 2 (b)). The voice cancel stop signal transmitting means C is constituted by the above.

As described above, according to the voice control device according to the first embodiment, the audio control device 13
Between the mixer and the mixer 15, the voice cancel device 14 for canceling the vocal voice of the music source is equipped,
The microcomputer 11 judges the transmission of the guide voice and transmits a voice cancel signal p, and a voice cancel signal transmitting means A, and a voice cancel executing means B which receives the voice cancel signal p and cancels the vocal voice. Since the voice cancel cancel signal transmitting means C for transmitting the voice cancel cancel signal q upon judging the end of the guide voice transmission is provided, the voice cancel signal p is transmitted by the voice cancel signal sending means A when the guide voice is emitted. Is transmitted, and the voice cancel execution means B cancels the vocal voice of the music source based on the voice cancel signal p. Therefore, the guide voice and the vocal voice of the music source do not overlap each other, and the guide voice can be easily heard.

Further, when the transmission of the guide voice is completed, the cancellation of the vocal voice of the music source is canceled by the transmission of the voice cancel stop signal q by the voice cancel stop signal transmitting means C, and the voice of the music source including the vocal voice is canceled. The service will be resumed. Therefore, after the guide information by the guide voice is acquired, the voice of the favorite music source can be immediately reproduced, so that the user can obtain the guide information without being substantially restricted from listening to the favorite music source. be able to.

In the first embodiment, the case where the audio reproducing apparatus 10 and the navigation system 20 have the common mixer 15, amplifier 16 and speaker 17 has been described, but the present invention is not limited to this.
In another embodiment, the mixer 15 is not equipped,
Audio playback device 10 and navigation system 20
And may have separate amplifier 16 and speaker 17, respectively.

Further, the microcomputer 11 and the microcomputer 22 may be integrated.

<Second Embodiment> FIG. 3 is a block diagram schematically showing a configuration of a voice control device according to a second embodiment. The signal line shown by the solid line and the signal line shown by the arrow in the figure are the same as those in the first embodiment.
In the figure, the same reference numerals are given to the components having the same functions as in the case of the first embodiment.

In the voice control device according to the second embodiment, the voice cancel device 14 (FIG. 1) for canceling the vocal voice of the music source is not provided between the audio control device 13 and the mixer 15, while the microcomputer 42 is used. Between the mixer 15 and the mixer 15, there is provided a volume changing device 43 including an electronic volume or the like for changing the volume of the guide voice. Other configurations are similar to those of the first embodiment.

Next, the operation of the microcomputer 31 and the microcomputer 42 of the voice control device configured as described above will be described with reference to FIG. FIG. 4A is a flowchart showing the operation of the microcomputer 31 according to the second embodiment, and FIG. 4B is a flowchart showing the operation of the microcomputer 42 according to the second embodiment. A control signal is sent from the microcomputer 31 to the audio player 12, the audio control device 13, and the mixer 15. Normally, a voice is provided in the vehicle at a desired volume from a desired music source. On the other hand, the microcomputer 42 constantly determines whether or not to send the guide voice based on the navigation situation (see FIG. 4).
(B) S110) If the guide voice is determined not to be transmitted, the above situation continues. On the other hand, for example, when the vehicle approaches a required intersection such as turning right or left, the guide voice is emitted in the navigation system, and the microcomputer 42 determines in step 110 to emit the guide voice, and then the guide voice is emitted. The signal r is transmitted to the microcomputer 31 (S111).

The microcomputer 31 executes step 21 (see FIG. 4).
In (a)), it is determined whether or not the guide voice transmission signal r is received, and when it is determined that the guide voice transmission signal r is received from the microcomputer 42, the process proceeds to step 22 and is flown into the vehicle. Music source volume is a predetermined value (xd
It is determined whether or not B) is exceeded. If it is determined that it is below the predetermined value, the process proceeds to step 24. If it is determined that it exceeds the predetermined value, the process proceeds to step 23, and the music source volume is controlled to be below the predetermined value, and then step 24 is performed.
Then, the music source volume signal s is transmitted to the microcomputer 42.

In the microcomputer 42, the music source volume signal s
Is determined (S112), and if it is determined that the music source volume signal s is received, step 113
Then, it is determined whether or not the received music source volume and the transmitted guide voice volume have an appropriate ratio. If it is determined that the ratio is appropriate, the process proceeds to step 115,
If it is determined that the ratio is not the proper ratio, the process proceeds to step 114, and the guide voice volume is changed so that the ratio becomes the proper ratio.
The change of the guide voice volume is performed by the volume changing device 43. Next, in step 115, the guide voice is transmitted, and the mixer 15 mixes the music source signal with the controlled guide voice signal to form a mixed voice signal in which the guide voice is easily heard. The formed mixed audio signal is sent to the amplifier 16, amplified, and then emitted as sound from the speaker 17.

Further, the microcomputer 42 determines in step 116 whether or not the transmission of the guide voice is completed. When it is determined that the transmission is completed, the microcomputer 42 proceeds to step 117 and outputs the stop signal t of the music source volume control. Microcomputer 31
Send towards.

The microcomputer 31 executes step 25 (see FIG.
In (a)), it is determined whether or not the music source volume control stop signal t from the microcomputer 42 is received. When it is determined that the signal is received, the process proceeds to step 26 to execute the music source volume control stop. .

Steps 21, 22, 23 (see FIG. 4)
(A)) constitutes the music source volume control means D,
The steps 113 and 114 (FIG. 4 (b)) constitute the guide voice volume changing means E.

As described above, according to the voice control device according to the second embodiment, the volume changing device 43 for changing the volume of the guide voice is provided between the navigation control unit 41 and the mixer 15, and the microcomputer 31 ( 42) a music source volume control means D for controlling the volume of the music source to a level equal to or lower than a predetermined amount by judging the transmission of the guide voice, and the volume of the music source and the volume of the guide voice have a predetermined ratio. Further, since the guide voice volume changing means E for changing the volume of the guide voice is provided, the music source volume control means D controls the volume of the music source to a level below a predetermined amount when the guide voice is emitted. Then, the guide voice volume changing means E controls the volume of the guide voice to be a voice having a volume of a predetermined ratio with the volume of the controlled music source. Therefore, when the volume of the music source exceeds the level of the predetermined amount, the volume of the music source is once reduced to a level equal to or lower than the predetermined amount, and then a large volume having a predetermined ratio with respect to the level is set. The guide voice is emitted. Therefore, even when the guide voice and the voice of the music source are uttered in duplicate, the volume of both is automatically adjusted so that the guide voice is easily heard.

<Third Embodiment> FIG. 5 is a block diagram schematically showing a configuration of a voice control device according to a third embodiment. The signal line shown by the solid line and the signal line shown by the arrow in the figure are the same as those in the first embodiment.
In the figure, the same reference numerals are given to the components having the same functions as in the case of the second embodiment.

In the audio control device according to the third embodiment, the audio band of the lowest volume level in the audio of the music source is detected between the audio control device 13 equipped in the microcomputer 51 and the mixer 15. The voice band detecting means 52 is provided, and the microcomputer 62 is provided with a voice changing device 63 for changing the guide voice sent to the mixer 15 to a voice having the voice band detected by the voice band detecting means 52. . Other configurations are similar to those of the second embodiment.

Next, the operation of the microcomputer 51 and the microcomputer 62 of the voice control device configured as described above will be described with reference to FIG. 6A is a flowchart showing the operation of the microcomputer 51 according to the third embodiment, and FIG. 6B is a flowchart showing the operation of the microcomputer 62 according to the third embodiment. A control signal is sent from the microcomputer 51 to the audio player 12, the audio control device 13, the audio band detecting means 52, and the mixer 15. Normally, the audio signal of a desired music source is not detected at the desired sound volume. Audio is provided in the car.
On the other hand, the microcomputer 62 always determines whether or not to send the guide voice based on the navigation situation (FIG. 6 (b), S120). If it is determined not to send the guide voice, the above situation is continued. . On the other hand, for example, when the vehicle approaches a required intersection such as turning right or left, the navigation system will generate the guide voice, and the microcomputer 62 determines in step 120 that the guide voice is to be transmitted, and then the guide voice transmission signal is transmitted. r
Is transmitted to the microcomputer 51 (S121).

The microcomputer 51 executes step 31 (see FIG. 6).
In (a)), it is determined whether or not the guide voice transmission signal r is received, and when it is determined that the guide voice transmission signal r from the microcomputer 62 is received, the process proceeds to step 32 and is provided in the vehicle. Performs the detection of the voice band at the lowest volume level of the music source. The detection is performed by the voice band detecting means 52. Next, in step 33, the detected voice band signal u is transmitted to the microcomputer 62.

The microcomputer 62 determines whether or not the voice band signal u of the lowest volume level of the music source has been received (FIG. 6 (b), S122), and it is determined here that the voice band signal u has been received. At that time, the process proceeds to step 123, and it is determined whether or not the guide voice is within the received voice band. If it is determined that the guide voice is within the received voice band, the process proceeds to step 125. If it is determined that the guide voice is not within the voice band, the process proceeds to step 124, and the guide voice band is set to be the guide voice in the voice band. Make changes, including changes in vocal gender. The change of the guide voice band is performed by the voice changing device 63. Next, in step 125, the guide voice is transmitted, and the mixer 15 mixes the music source signal with the controlled guide voice signal to form a mixed voice signal in which the guide voice is easily heard. The mixed audio signal thus generated is sent to the amplifier 16, amplified, and then emitted as sound from the speaker 17.

Further, the microcomputer 62 determines in step 126 whether or not the guide voice has been transmitted. When it is determined that the guide voice has been transmitted, the microcomputer 62 proceeds to step 127 and outputs the stop signal v for stopping the music source band control. Microcomputer 51
Send towards.

The microcomputer 51 executes step 34 (see FIG. 6).
In (a)), it is determined whether or not the stop signal v for detecting the voice band is received from the microcomputer 62, and when it is determined that the signal is received, the process proceeds to step 35 to stop the voice band detection.

As described above, according to the voice control device according to the third embodiment, the audio control device 13
Band detecting means 5 for detecting the voice band of the lowest volume level among the voices of the music source between the mixer 15 and the mixer 15.
2 is equipped, while a voice changing device 63 is provided between the navigation control unit 61 and the mixer 15 for changing the guide voice to a voice having a voice band detected by the voice band detecting means 52. When the guide voice is emitted, the voice band detecting means 52 detects the voice band of the lowest volume level among the voices of the music source, and the voice changing device 63 automatically outputs the guide voice to the voice having the detected voice band. Change controlled. Therefore, the main voice band of the music source and the voice band of the guide voice are inevitably different from each other, and even if the guide voice and the music source voice are uttered in duplicate, the difference in the voice band is generated. Therefore, the driver can easily recognize the guide voice.

<Fourth Preferred Embodiment> FIG. 7 is a block diagram schematically showing a configuration of a voice control device according to a fourth preferred embodiment. The signal line shown by the solid line and the signal line shown by the arrow in the figure are the same as those in the first embodiment.
In the figure, the same reference numerals are given to the components having the same functions as in the case of the second embodiment.

In the voice control device according to the fourth embodiment, an engine speed detecting device 83 for detecting the engine speed of the vehicle is connected to the microcomputer 82, while a guide voice signal sent to the mixer 15 is detected for the engine speed. A voice changing device 84 for changing to a voice having a sound quality and volume corresponding to the engine speed detected by the device 83 is provided. Other configurations are described in the second embodiment.
Is the same as

Next, the operation of the microcomputer 82 of the voice control device configured as described above will be described with reference to the flow chart shown in FIG. From the microcomputer 71 to the audio player 12, the audio control device 13, the mixer 1
A control signal is sent to the vehicle 5, and normally a voice is provided in a vehicle at a desired volume from a desired music source. On the other hand, the microcomputer 82 always determines whether or not to send the guide voice based on the navigation situation (S1).
30) If the guide voice is not transmitted, the above situation is continued. On the other hand, for example, when the vehicle is approaching a required intersection such as turning left or right, the guide sound is emitted in the navigation system, and after it is determined in step 130 that the guide sound is to be emitted, the engine speed detection device 83 The engine rotation speed is fetched (S131). Next, in step 132, the sound quality and volume corresponding to the engine speed are determined. The determination is made based on a chart stored in advance as shown in Table 1 below. For example, when the taken-in engine speed is 1000 revolutions, the vehicle noise level is 1, so that the sound quality corresponds to the level 2 and the sound volume corresponds to the level 3. Also, for example, the engine speed taken in is 4000
In the case of rotation, since the vehicle noise level is 4, the sound quality is associated with level 3 and the volume is associated with level 4.

[0063]

[Table 1]

Next, in step 133, it is determined whether or not the guide voice transmitted has the above-mentioned sound quality. When the sound quality is the above, the process proceeds to step 135, and when it is determined that the sound quality is not the one, the process proceeds to step 134 and the guide voice is changed to the voice having the sound quality. Then, step 13
In step 5, it is determined whether the volume of the guide voice set to the desired sound quality satisfies the volume level determined in step 132. If it is determined that the volume is satisfied, the procedure proceeds to step 137, and if it is determined that the volume level is not higher than the volume level, the procedure proceeds to step 136 and the guide voice having the volume is changed. Execution of the guide voice to these sound quality and volume is performed by the voice changing device 84. These Step 13
The sound changing means F ₁ is composed of 2 to 136.

Next, in step 137, the guide voice is transmitted, and the mixer 15 mixes the music source signal with the controlled guide voice signal to form a mixed voice signal in which the guide voice is easily heard. The formed mixed audio signal is sent to the amplifier 16 and amplified, and then emitted from the speaker 17 as audio.

After that, in step 138, it is determined whether or not the transmission of the guide voice is completed, and when it is determined that the transmission of the guide voice is completed, the control of the sound quality and volume of the guide voice is stopped in step 139.

As described above, according to the voice control device of the fourth embodiment, vehicle noise data corresponding to various engine speeds and the sound quality of the guide voice that can be heard when the vehicle noise is mixed. By storing the volume data and the data in the microcomputer in advance, when the guide sound is emitted, the engine speed detecting device 83 detects the engine speed, and then the sound changing means F ₁ detects the detected engine. The guide voice can be automatically controlled to a voice having a sound quality and volume corresponding to the number of rotations.

Further, the detection of the engine speed is normally performed in the navigation system 80 and can be realized relatively easily in terms of function, so that the guide voice can be performed without complicating the configuration of the voice control device. Automatic control of sound quality and volume can be easily performed.

<Fifth Embodiment> FIG. 9 is a block diagram schematically showing a configuration of a voice control device according to a fifth embodiment. The signal line shown by the solid line and the signal line shown by the arrow in the figure are the same as those in the first embodiment.
In the figure, the same reference numerals are given to the components having the same functions as in the case of the fourth embodiment.

In the voice control device according to the fifth embodiment, the vehicle speed detection device 103 for detecting the vehicle speed of the vehicle is connected to the microcomputer 102. Other configurations are similar to those of the fourth embodiment.

Next, the operation of the microcomputer 102 of the voice control device configured as described above will be described with reference to the flow chart shown in FIG. A control signal is sent from the microcomputer 91 to the audio player 12, the audio control device 13, and the mixer 15. Normally, a sound is provided in the vehicle at a desired volume from a desired music source.
On the other hand, the microcomputer 102 always determines whether or not to send the guide voice based on the navigation situation (S140). When it is determined not to send the guide voice, the above situation is continued while the guide voice is transmitted. If it is determined that this is the case, the routine proceeds to step 141, where the vehicle speed is fetched. Next, in step 142, the sound quality and volume corresponding to the vehicle speed are determined. The determination method is the same as the method described in the fourth embodiment.

Next, in step 143, it is judged whether or not the guide voice transmitted has the above-mentioned sound quality. If the sound quality is the above, the process proceeds to step 145. If it is determined that the sound quality is not the one, the process proceeds to step 144 and the guide voice is changed to the voice having the sound quality. Then, step 14
In step 5, it is determined whether or not the volume of the guide voice set to the desired sound quality satisfies the volume level determined in step 142. If it is determined that the volume level is satisfied, the process proceeds to step 147, and if it is determined that the volume level is not higher than the volume level, the process proceeds to step 146 to change to the guide voice having the volume level. Execution of the guide voice to these sound quality and volume is performed by the voice changing device 84. These steps 1
42 to 146 constitute a voice changing means F ₂ .

Next, in step 147, the guide voice is transmitted, and the mixer 15 mixes the music source signal with the controlled guide voice signal to form a mixed voice signal in which the guide voice is easily heard. The formed mixed audio signal is sent to the amplifier 16 and amplified, and then emitted from the speaker 17 as audio.

After this, in step 148, it is judged whether or not the transmission of the guide voice has ended, and when it is judged that the transmission of the guide voice has ended, the control of the sound quality and volume of the guide voice is stopped in step 149.

As described above, according to the voice control device according to the fifth embodiment, the microcomputer 102 is provided with the vehicle speed detection device 1.
03 is connected, a voice changing device 84 is installed between the navigation control unit 101 and the mixer 15, and the microcomputer 102 changes the guide voice so that the voice has a sound quality and a volume corresponding to the vehicle speed. ₂ is provided, the vehicle noise data corresponding to various vehicle speeds and the sound quality / volume data of the guide voice that can be heard when mixed with the vehicle noise are previously stored in the microcomputer 102.
When the guide voice is emitted, the vehicle speed detecting device 103 detects the vehicle speed, and then the voice changing means F ₂ converts the guide voice into a voice having a sound quality and a volume corresponding to the detected vehicle speed. Can be controlled automatically.

Further, since the vehicle speed is normally detected in the navigation system 100 and can be realized relatively easily in terms of function, the sound quality of the guide voice can be realized without complicating the configuration of the voice control device.・ Automatic control of volume can be performed easily.

<Sixth Embodiment> FIG. 11 is a block diagram schematically showing a configuration of a voice control device according to a sixth embodiment. The signal line shown by the solid line and the signal line shown by the arrow in the figure are the same as those in the first embodiment. In the figure, the same reference numerals are given to the components having the same functions as in the case of the fourth embodiment.

In the voice control device according to the sixth embodiment, the in-vehicle noise level detecting device 123 for detecting the in-vehicle noise level is connected to the microcomputer 122. The in-vehicle noise level detection device 123 has a microphone 123a, and the microphone 1
23a is configured to pick up in-vehicle noise. Other configurations are similar to those of the fourth embodiment.

Next, the operation of the microcomputer 122 of the voice control device configured as described above will be described with reference to the flow chart shown in FIG. A control signal is sent from the microcomputer 111 to the audio player 12, the audio control device 13, and the mixer 15, and normally a sound is provided in the vehicle at a desired volume from a desired music source. On the other hand, the microcomputer 122 always determines whether or not to send the guide voice based on the navigation situation (S150), and when it is determined not to send the guide voice, the above situation is continued. On the other hand, if it is determined that the guide voice is to be transmitted, the routine proceeds to step 151, where the in-vehicle noise level is taken in from the in-vehicle noise level detection device 123. Next, at step 152, the sound quality and volume corresponding to the in-vehicle noise level are determined. The determination method is the same as the method described in the fourth embodiment.

Next, at step 153, it is judged whether or not the guide voice transmitted has the above-mentioned sound quality. If it is the above sound quality, the process proceeds to step 155. If it is determined that the sound quality is not the above sound quality, the process proceeds to step 154 and the guide voice is changed to the voice having the above sound quality. Then step 15
In step 5, it is determined whether or not the volume of the guide voice set to the desired sound quality satisfies the volume level determined in step 152. If it is determined that the volume is satisfied, the process proceeds to step 157, and if it is determined that the volume level is not higher than the volume level, the process proceeds to step 156 to change to the guide voice having the volume. Execution of the guide voice to these sound quality and volume is performed by the voice changing device 84. These steps 1
The voice changing means F ₃ is constituted by 52 to 156.

Next, in step 157, the guide voice is transmitted, and the mixer 15 mixes the music source signal with the controlled guide voice signal to form a mixed voice signal in which the guide voice is easily heard. The formed mixed audio signal is sent to the amplifier 16 and amplified, and then emitted from the speaker 17 as audio.

Thereafter, in step 158, it is determined whether or not the transmission of the guide voice is completed, and when it is determined that the transmission of the guide voice is completed, the control of the sound quality and volume of the guide voice is stopped in step 159.

As described above, according to the voice control device according to the sixth embodiment, the in-vehicle noise level detecting device 123 is connected to the microcomputer 122, while the voice changing device is provided between the navigation control section 121 and the mixer 15. 84, and the microcomputer 122 is provided with the voice changing means F ₃ for changing the guide voice to the voice having the sound quality and the volume corresponding to the in-vehicle noise level. Therefore, various in-vehicle noise level data and the in-vehicle noise level are provided. By storing in advance the sound quality and volume data of the guide voice that can be heard when mixed with noise in the microcomputer 122, the in-vehicle noise level detection device 123 when the guide voice is emitted.
After detecting the in-vehicle noise level by the voice changing means F ₃
As a result, the guide voice can be automatically controlled to the voice having the sound quality and the volume corresponding to the detected in-vehicle noise level.

Further, the detection of the in-vehicle noise level can be performed relatively easily by, for example, mounting the microphone 123a in the vehicle, and the sound quality of the guide voice can be achieved without complicating the configuration of the voice control device.・ Automatic control of volume can be performed easily.

The in-vehicle noise is noise with respect to the guide voice and includes voice from a music source or the like, and the audibility of the guide voice substantially depends on the in-vehicle noise level. Therefore, the sound quality according to the in-vehicle noise level
By uttering a guide voice having a volume, the function of the guide voice can be fully exerted.

<Seventh Preferred Embodiment> FIG. 13 is a block diagram schematically showing a configuration of a voice control device according to a seventh preferred embodiment. The signal line shown by the solid line and the signal line shown by the arrow in the figure are the same as those in the first embodiment. In the figure, the same reference numerals are given to the components having the same functions as in the case of the fourth embodiment.

In the voice control device according to the seventh embodiment, the in-vehicle noise level detecting device 123 for detecting the in-vehicle noise level is connected to the microcomputer 142, and the in-vehicle noise level detecting device 123 is one of the in-vehicle noises. Voice band detecting means 143 for detecting the voice band of the lowest volume level
The voice band detecting means 143 is also connected to the microcomputer 1
It is connected to 42. Other configurations are similar to those of the fourth embodiment.

Next, the operation of the microcomputer 142 of the voice control device configured as described above will be described with reference to the flow chart shown in FIG. A control signal is sent from the microcomputer 131 to the audio player 12, the audio control device 13, and the mixer 15. Normally, a voice is provided in the vehicle at a desired volume from a desired music source. On the other hand, the microcomputer 142 always determines whether or not to send the guide voice according to the situation of navigation (S160), and when it is determined that the guide voice is not to be sent, the above situation is continued. On the other hand, when it is determined that the guide voice is transmitted, the process proceeds to step 161, and the in-vehicle noise level is taken in from the in-vehicle noise level detection device 123 (S161). Next, in step 162, the voice band of the volume level and the minimum volume level of the in-vehicle noise is detected, and the volume level and voice band of the guide voice to be emitted are determined corresponding to the volume level and voice band detected in step 163. . Next, at step 164, it is judged whether or not the guide voice to be transmitted is in the voice band. If it is in the voice band, the process proceeds to step 166. If it is determined that the voice band is not in the voice band, step 16
Proceeding to step 5, the voice band is changed to the guide voice. Then, in step 166, it is determined whether or not the volume level of the guide voice in the desired voice band satisfies the volume level determined in step 163. If it is satisfied, the process proceeds to step 168, and if it is not higher than the volume level, the process proceeds to step 167 to change the guide voice to the voice having the volume level. The execution of the voice band and the volume level of these guide voices is performed by the voice changing device 84. The voice changing means F ₄ is constituted by these steps 162 to 167.

Next, in step 168, the guide voice is transmitted, and the mixer 15 mixes the music source signal with the controlled guide voice signal to form a mixed voice signal in which the guide voice is easily heard. The formed mixed audio signal is sent to the amplifier 16, amplified, and then emitted from the speaker 17 as audio.

After that, in step 169, it is determined whether or not the transmission of the guide voice is terminated, and when it is determined that the transmission of the guide voice is terminated, the control of the sound quality and volume of the guide voice is stopped in step 170.

As described above, according to the voice control device of the seventh embodiment, the in-vehicle noise is detected by the microcomputer 142 via the voice band detecting means 143 for detecting the voice band of the lowest volume level in the in-vehicle noise. While the level detecting device 123 is connected, a voice changing device 84 is provided between the navigation control section 141 and the mixer 15, and the microcomputer 1
42 includes a voice changing unit F ₄ for changing the voice band detected by the voice band detecting unit 143 to a guide voice having a volume level corresponding to the volume level of noise, so that when the guide voice is emitted, the interior of the vehicle The noise level detecting device 123 detects the in-vehicle noise level, the voice band detecting means 143 detects the voice band of the lowest volume level among the in-vehicle noises, and the voice changing means F ₄ detects the detected in-vehicle noise. The guide voice is automatically controlled to a voice having a volume level and a voice band corresponding to the noise level. Therefore, the main voice band of the in-vehicle noise and the voice band of the guide voice can be inevitably different from each other. Therefore, the volume level and the voice band can be controlled corresponding to the in-vehicle noise level and the voice band, and the guide voice can be easily recognized.

[Brief description of drawings]

FIG. 1 is a block diagram schematically showing a system configuration of a voice control device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of a microcomputer which constitutes the voice control device according to the present embodiment.

FIG. 3 is a block diagram schematically showing a system configuration of a voice control device according to another embodiment.

FIG. 4 is a flowchart showing the operation of a microcomputer which constitutes a voice control device according to another embodiment.

FIG. 5 is a block diagram schematically showing a system configuration of a voice control device according to still another embodiment.

FIG. 6 is a flowchart showing the operation of a microcomputer which constitutes a voice control device according to another embodiment.

FIG. 7 is a block diagram schematically showing a system configuration of a voice control device according to still another embodiment.

FIG. 8 is a flowchart showing the operation of a microcomputer which constitutes a voice control device according to still another embodiment.

FIG. 9 is a block diagram schematically showing a system configuration of a voice control device according to still another embodiment.

FIG. 10 is a flowchart showing the operation of a microcomputer constituting a voice control device according to another embodiment.

FIG. 11 is a block diagram schematically showing a system configuration of a voice control device according to yet another embodiment.

FIG. 12 is a flowchart showing the operation of a microcomputer constituting a voice control device according to another embodiment.

FIG. 13 is a block diagram schematically showing a system configuration of a voice control device according to yet another embodiment.

FIG. 14 is a flowchart showing the operation of a microcomputer constituting a voice control device according to another embodiment.

[Explanation of symbols]

 10 audio playback device 11, 22 microcomputer 13 audio control device 14 voice cancel device 15 mixer 20 navigation system

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location // G08B 3/10 G08B 3/10

Claims (7)

[Claims] 1. A voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer, wherein a vocal voice of a music source is provided between the audio control device and the mixer. A voice canceling device for canceling is provided, and the microcomputer executes voice canceling signal canceling means for judging the transmission of a guide voice and transmitting a voice canceling signal, and receiving the voice canceling signal to cancel the vocal voice. A voice control device comprising: a voice cancel execution means, and a voice cancel stop signal transmission means for transmitting a voice cancel stop signal upon determining the end of the guide voice transmission. 2. A voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer, wherein the volume of the guide voice is changed between the navigation control unit and the mixer. A volume changing device is provided, and the microcomputer determines the volume of the music source by controlling the volume of the music source to a level below a predetermined amount by judging the transmission of the guide voice, and the volume of the music source and the volume of the guide voice. And a guide voice volume changing means for changing the volume of the guide voice so that the ratio becomes a predetermined ratio. 3. A voice control device comprising a microcomputer equipped in a navigation system and an audio playback device, an audio control device, and a mixer, wherein a voice of a music source is placed between the audio control device and the mixer. Is equipped with a voice band detecting means for detecting the voice band of the lowest volume level, the guide voice is changed to a voice having the voice band detected by the voice band detecting means between the navigation control section and the mixer. A voice control device comprising a voice changing device for changing. 4. A voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer, wherein an engine speed detecting device is connected to the microcomputer while a navigation control unit is provided. A voice changing device is provided between the mixer and the mixer, and the microcomputer includes voice changing means for changing the guide voice to a voice having a sound quality and a volume corresponding to the engine speed. Control device. 5. A voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer, while a vehicle speed detecting device is connected to the microcomputer,
A voice changing device is provided between the navigation control unit and the mixer, and the microcomputer includes voice changing means for changing the guide voice to a voice having a sound quality and a volume corresponding to a vehicle speed. Control device. 6. A voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer, wherein an in-vehicle noise level detecting device is connected to the microcomputer while a navigation control section is provided. A voice changing device for changing the guide voice to a voice having a sound quality and a volume corresponding to the in-vehicle noise level, and a voice changing device is provided between the mixer and the mixer. apparatus. 7. A voice control device comprising a microcomputer equipped in a navigation system and an audio reproducing device, an audio control device, and a mixer, wherein the microcomputer is provided with a voice band having the lowest volume level of in-vehicle noise. While the in-vehicle noise level detection device is connected via the voice band detection means for detecting, a voice change device is provided between the navigation control section and the mixer, and the microcomputer detects the voice band detection means. A voice control device comprising voice changing means for changing a guide voice to a voice having a voice band.