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Dereverberation control method and device for equipment with microphone

A de-reverberation and microphone technology, which is applied to measuring devices, measuring reverberation time, instruments, etc., can solve the problems of low voice command recognition rate and achieve the effect of improving the recognition rate

Active Publication Date: 2017-08-18
LITTLE BIRD CO LTD
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AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a reverberation control method and device for a device with a microphone to solve the problem of low voice command recognition rate caused by existing solutions, etc.

Method used

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  • Dereverberation control method and device for equipment with microphone

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] An embodiment of the present invention provides a reverberation control method for a device with a microphone. see figure 1 , the method includes:

[0017] S101: Using the audio signal played by the device, obtain a reverberation parameter indicating the reverberation degree of the room environment where the device is located at each moment.

[0018] S102: Dynamically adjust the de-reverberation mode used by the device according to the reverberation degree indicated by the reverberation parameter at each moment and the preset corresponding relationship between the reverberation degree and the de-reverberation mode.

[0019] exist figure 1 On the basis of the illustrated embodiment, further, another embodiment of the present i...

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Abstract

The invention discloses a dereverberation control method and device for equipment with a microphone. The method comprises the following steps: using an audio signal played by the equipment, acquiring a reverberation parameter for indicating the environment reverberation degree of a room in which the equipment is located at any time; and dynamically adjusting a dereverberation mode used by the equipment according to a corresponding relationship between the reverberation degree indicated by the reverberation parameter at each time and a preset reverberation degree and the dereverberation mode. The scheme of the invention can significantly improve the recognition rate of the equipment to user voice through the dynamic dereverberation mode.

Description

technical field [0001] The present invention relates to the technical field of intelligent terminals, in particular to a method and device for reverberation control of a device with a microphone. Background technique [0002] In long-distance voice interaction, the signal received by the microphone end is easily affected by environmental reverberation. For example, in a room, voice is reflected multiple times by walls, floors, and furniture, and the signal received by the microphone end is a mixed signal of direct sound and reflected sound. This part of the reflected sound is the reverberation signal. When the speaker is far away from the microphone and the call environment is a relatively closed space, reverberation is easy to occur. When the reverberation is serious, the voice will be unclear and affect the call quality. In addition, the interference caused by reverberation will also lead to the deterioration of the performance of the acoustic receiving system, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00G01H7/00H04M9/08H04R3/02H04R27/00H04S7/305H04R2227/007G10L21/0208G10L2021/02082G10L2021/02166G10L21/0216
Inventor 李波楼厦厦
Owner LITTLE BIRD CO LTD
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