Title:
AUTOMATIC GAIN CONTROL METHOD AND APPARATUS FOR VOICE INTERACTION SYSTEM, AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/006107
Kind Code:
A1
Abstract:
An automatic gain control method and apparatus for a voice interaction system, a system, and a computer readable storage medium. The method comprises: receiving a voice signal (S100); dividing, by means of blind source separation, the received voice signal into a plurality of sound signals of different sound sources (S102); invoking a pre-trained wake-up word detection model to respectively perform wake-up word detection on the sound signals of different sound sources, so as to determine a sound signal in which a wake-up word is detected (S104); and calculating, on the basis of the sound signal in which a wake-up word is detected, a gain required for automatic gain control in a voice interaction system, so as to adjust the volume of picked-up audio data within a preset range (S106). The method can accurately calculate a gain required for each interaction, thereby ensuring the accuracy of voice recognition, and improving interaction experience of a user.
Inventors:
SUN XIANGYU (CN)
Application Number:
PCT/CN2022/109240
Publication Date:
February 02, 2023
Filing Date:
July 29, 2022
Export Citation:
Assignee:
ESPRESSIF SYS SHANGHAI CO LTD (CN)
International Classes:
G10L17/22; G10L15/22; G10L17/24; G10L21/02; G10L21/0272
Foreign References:
| CN113555033A | 2021-10-26 | |||
| CN109192219A | 2019-01-11 | |||
| CN108615535A | 2018-10-02 | |||
| US20200279575A1 | 2020-09-03 | |||
| US5146504A | 1992-09-08 | |||
| CN112397083A | 2021-02-23 | |||
| CN102915753A | 2013-02-06 | |||
| CN107123429A | 2017-09-01 |
Attorney, Agent or Firm:
BEIJING LUSHENG LAW FIRM (CN)
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