Sound pickup adjustment method, control terminal and computer-readable storage medium

An adjustment method and storage medium technology, applied in the direction of using feedback control, loudspeaker, voice analysis, etc., can solve the problems of differences in the size of the pickup signal and affect the pickup signal, etc., to improve accuracy and echo cancellation, guarantee performance, improved accuracy and effects of echo cancellation

CN109257682AActive Publication Date: 2019-01-22荣成歌尔科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-01-22

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Abstract

The invention discloses a sound pickup adjustment method, which comprises the following steps: obtaining the orientation information of a sound source; determining an angle of rotation of the loudspeaker according to the azimuth information. The gain corresponding to each microphone is determined according to the determined angle and the position of the plurality of microphones, and the pickup parameter of the corresponding microphone is updated according to the determined gain. The invention also discloses a control terminal and a computer-readable storage medium. A sound pickup adjustment method of the invention realizes that the sound pickup signals recorded by different microphones tend to be close to each other or be adjusted to be consistent. Thus, an ideal speech input is provided for the intelligent speech recognition algorithm of the intelligent sound box, the performance of the speech recognition of the intelligent sound box is guaranteed from the source, and the positioningaccuracy of the sound source of the intelligent sound box and the effect of the echo cancellation are improved.
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Description

technical field

[0001] The invention relates to the field of sound pickup, in particular to a sound pickup adjustment method, a control terminal and a computer-readable storage medium. Background technique

[0002] Smart speakers are upgraded products through which consumers can use voice to access the Internet, such as ordering songs, shopping online, or understanding the weather forecast. In addition, they can also control smart home devices, such as opening curtains and setting refrigerators through smart speakers. Temperature, let the water heater heat up in advance, etc. Due to its powerful functions and good user interaction experience, smart speakers are becoming more and more popular among consumers, and their development momentum has been advancing rapidly in recent years.

[0003] In order to achieve a better interaction effect, most smart speakers use a microphone array composed of four to eight microphones for far-field sound pickup. However, due to the large n...

Examples

Embodiment Construction

[0040] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] The technical problem addressed by this application is that the smart speaker is provided with a microphone array. Due to the large number of microphones, the pickup signal of the microphone near the front sounding part of the speaker is greater than the pickup signal of the microphone facing away from the front sounding part of the speaker. , and the size of the pickup signal collected by different microphones is also different, which affects the voice recognition of the pickup signal collected by the microphone by the smart speaker. The technical solution of this application can make the pickup signal collected by different microphones tend to be closer Or achieve a consensus, so as to provide an ideal voice input for the intelligent voice recognition algorithm of the smart speaker, guarantee the performance o...