JPH0521299U - Voice control audio equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] Eliminate erroneous recognition caused by the operating state of audio equipment and enable reliable operation control. [Structure] When recognizing a voice command, it is configured to perform a mute operation to stop the output of voices and musical sounds from the audio device. It is possible to eliminate erroneous recognition due to the mixture of the audio data and to reliably control the operation of the audio device.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a voice control audio device, and more particularly to a voice control audio device that controls operation by voice recognition.

[0002]

[Prior Art]

 Audio devices such as radios, tape recorders, and CD players installed in vehicles are desired to be as simple as possible considering that the operator is a driver. Usually, the operation is controlled by operating the keys provided on the operation panel of the car audio device, but if the types and the number of the audio devices increase, a problem in operability occurs. Therefore, a voice control audio device that attempts to perform the above control by recognizing a voice command by a voice uttered by a user with a voice recognition device has appeared. In speech recognition, as the number of words to be recognized increases, and in the case of an unspecified speaker, although there is a problem with the recognition accuracy, the words for the operation control of the audio device are limited. Practical application is possible. The motion control voice command issued by the operator is sent to the voice recognition unit via the microphone, and the motion control corresponding to the recognition result is performed on the audio device.

[0003]

[Problems to be solved by the device]

 As described above, the conventional voice control audio device controls the operation of the audio device by recognizing the voice command of the operator by the voice recognition unit. By the way, generally, when controlling an audio device, the audio device, for example, a radio or a CD player is in an operating state, and a voice or a musical sound is often output from a speaker. In such an environment, when the operator issues a voice command, the music output from the speaker of the audio device is mixed with the voice command, and it is impossible to accurately recognize the voice command. Therefore, the risk of erroneous recognition increases.

Therefore, an object of the present invention is to provide a voice control audio device that eliminates erroneous recognition due to the operating state of the audio device and enables reliable operation control.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a voice control audio device according to the present invention is a sound for controlling an operation of an audio device by recognizing an input voice command from a microphone whose ON / OFF operation is controlled by a switch ON / OFF operation. The voice control audio device is configured to include control means for muting the audio device when the switch is turned on.

[0006]

[Action]

 In this invention, in response to the ON operation of the switch for controlling the ON / OFF operation of the microphone, the audio device is muted to prevent erroneous recognition due to mixing of the audio from the audio device speaker with the input voice command from the microphone. It controls the operation of audio equipment. This mute operation can be configured such that it continues for a predetermined time after the switch ON is operated and is canceled after a predetermined time has elapsed, and the microphone can be a wireless microphone.

[0007]

【Example】

 Next, this invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a voice control audio device according to the present invention. In this embodiment, infrared rays emitted from the remote control commander 1 control the operation of the car stereo 2. The remote control commander 1 includes a microphone 11 for converting a voice command uttered by an operator into an electric signal, a switch 12 for turning ON / OFF the operation of the microphone 11, and a voice recognition for recognizing a voice signal from the microphone 11. Section 13, a command generating section 14 for generating a command or the like corresponding to the recognized voice command and ON / OFF signal of the switch 12, and infrared modulation for the command generated by the command generating section 14 And an infrared modulator 15 that emits the light. The car stereo 2 receives a remote control light receiving unit 21 that receives infrared rays emitted from the remote control commander 1, a demodulation unit 22 that demodulates a received signal from the remote control light receiving unit 21, and a command sent from the demodulation unit 22. The CPU (central processing unit) 23 controls the car stereo 2 to mute and controls the operation of the car stereo, and the amplifier 26 controls the sending of the music signal to the speaker SP by the mute signal from the CPU 23.

Now, the operation of the embodiment of FIG. 1 will be described for the case where the switch 12 is an automatic reset type (non-lock) tact switch that is turned on only while it is pressed. When the switch 12 is pressed, the microphone 11 is turned on so that the input voice signal can be sent to the voice recognition unit 13 and the ON signal is sent to the command generation unit 14. The command generator 14 outputs a mute signal responsive to the ON signal from the switch 12 as a command signal. The infrared modulator 15 receives the command signal from the command generator 14, modulates the infrared light as a carrier, and emits it. The mute signal from the remote control commander 1 received by the remote control light receiving unit 21 of the car stereo 2 is demodulated by the demodulation circuit 22 and supplied to the CPU 23, and the car stereo is muted.

Next, the voice command input to the microphone 11 is voice-recognized by the voice recognition unit 13, a command signal corresponding to the recognition result is generated from the command generation unit 14, and is sent to the infrared line modulation unit 15. . The infrared light modulated by the infrared modulator 15 is received by the remote controller light receiving unit 21 of the car stereo and demodulated by the demodulator 22. In this way, the demodulated voice command signal is input to the CPU 23 to control the operation of the car stereo. When the switch 12 is released, the microphone 11 is turned off, the OFF signal of the switch 12 is sent to the command generator 14, and the mute release signal is emitted to the car stereo 2 side via the infrared modulator 15 as infrared rays. The car stereo is unmuted. It is also possible to turn on the microphone and mute the car stereo for a certain period of time even if the switch is pressed and then immediately released.

FIG. 2 is a block diagram showing the configuration of another embodiment of the voice control audio device according to the present invention. This embodiment is an example in which a microphone is a single unit and main circuit components such as a voice recognition unit are provided on the car stereo side. The voice signal from the microphone 11 is supplied to the voice recognition unit 24 of the car stereo 2, and the operating state of the switch 11A for performing the ON / OFF operation thereof is supplied to the CPU 25. The ON state signal of the switch 11A is received by the CPU 25, and the mute signal is sent to the amplifier 26 to enter the mute operation state. When the switch 11A is in the ON state, an input voice command from the microphone 11 is recognized by the voice recognition unit 24 of the car stereo 2 and a control signal corresponding to the recognized command is sent to the CPU 25. The CPU 25 controls the operation of the car stereo 2 based on the received control signal. After that, when the switch 11A is turned off, the mute signal is released through the processing of the system path similar to the above, and the mute of the amplifier 26 is released.

FIG. 3 is a block diagram showing the configuration of still another embodiment of the voice control audio device according to the present invention. In FIG. 2, the microphone 11 and the car stereo 2 side are connected by a conducting wire (wired line). On the other hand, both are connected by a wireless line. In FIG. 3, circuit elements designated by the same reference numerals as those in FIG. 2 are circuit elements having the same function. The voice command from the wireless microphone 11 and the ON / OFF signal of the switch 11A are emitted to the car stereo 2 side as a radio wave signal. The antenna ANT of the car stereo 2 receives the radio signal. The reception signal from the antenna ANT is received and demodulated by the reception / demodulation unit 27. The ON / OFF information of the switch 11A of the wireless microphone 11 from the reception / demodulation unit 27 is sent to the CPU 25 to supply / cancel the mute signal to the amplifier 26 to perform the mute operation / mute release operation. On the other hand, the voice command signal input from the wireless microphone 11 is voice-recognized by the voice recognition unit 24 via the reception / modulation unit 27, and a control signal corresponding to the recognition result is sent to the CPU 25. The CPU 25 performs predetermined car stereo operation control based on this control signal. In the above embodiments, as the switch for controlling the ON / OFF operation of the microphone, an electronic touch switch may be used in addition to the mechanical switch.

[0012]

[Effect of the device]

 As described above, the voice control audio device according to the present invention is configured to perform the mute operation for stopping the output of the voice or the musical sound from the audio device when the voice command is recognized. , It is possible to eliminate erroneous recognition caused by mixing of output voice and musical sound from the audio device at the time of voice recognition, and enable reliable operation control of the audio device. Moreover, since it can be performed only by operating the switch for controlling the operation of the microphone, it is possible to avoid complication in terms of structure.

[Brief description of drawings]

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

FIG. 2 is a block diagram showing the configuration of another embodiment of the voice control audio device according to the present invention.

FIG. 3 is a block diagram showing the configuration of still another embodiment of the voice control audio device according to the present invention.

[Explanation of symbols]

1 Remote Control Commander 2 Car Stereo 11 Microphone 11A, 12 Switch 13, 24
Voice recognition section 14 Command generation section 15 Infrared modulation section 21 Remote control light receiving section 22 Demodulation section 23,25 CPU 26 Amplifier 27 Reception / demodulation section

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication location H04Q 9/00 311 V 7170-5K (72) Creator Hideki Otsu 2-chome, Shibuya, Shibuya-ku, Tokyo No. 17-5 Ken-wood Co., Ltd. (72) Creator Makoto Sato 2-17-5 Shibuya, Shibuya-ku, Tokyo Ken-sha Co., Ltd.

Claims (4)

[Scope of utility model registration request] 1. A switch is turned ON / OFF by an ON / OFF operation.
An audio control audio device for recognizing an input voice command from a microphone whose OFF operation is controlled to control the operation of the audio device, comprising a control means for muting the audio device when the switch is turned on. Characteristic voice control audio equipment. 2. The voice-controlled audio device according to claim 1, wherein the microphone is a wireless microphone. 3. The control means includes the switch O.
After N operations, turn on the microphone for a predetermined time
2. The voice control audio apparatus according to claim 1, which is means for activating the audio apparatus and muting the audio apparatus, and for canceling the ON operation and the mute operation after the lapse of the predetermined time. 4. The voice control audio device according to claim 1, wherein the switch is an electronic switch.