DUAL SENSOR SPEECH ENHANCEMENT METHOD AND IMPLEMENTATION DEVICE

WIPO Patent Application WO/2021/012403

A1

A dual sensor speech enhancement method and an implementation device based on two-channel Wiener filtering. The method comprises: firstly, building a dual channel speech association classification model for performing frame classification on dual channel input signals of an air conduction sensor and a non-air conduction sensor by using the complementarity between air conduction speech and non-air conduction speech; secondly, classifying speech frames collected by dual channels by using the model; and finally, constructing a dual channel Wiener filter according to the classification result, and performing filtering enhancement on the speech signals collected by the dual channels. Information comprised in the air conduction speech and the non-air conduction speech is more fully integrated, and the prior knowledge of the speech signals is introduced by means of a statistic model, so that the enhancement effect of a speech enhancement system in a noise environment can be effectively improved. The dual sensor speech enhancement method can be widely applied to a plurality of occasions such as video call, vehicle call, multimedia classrooms and military communication.

ZHANG JUN (CN)
LI XUE (CN)
NING GENGXIN (CN)
FENG YIZHI (CN)
YU HUA (CN)
JI FEI (CN)

PCT/CN2019/110290

January 28, 2021

October 10, 2019

Click for automatic bibliography generation  

UNIV SOUTH CHINA TECH (CN)

G10L21/0216; G10L21/0264; G10L25/60

CN105632512A	2016-06-01
CN105513605A	2016-04-20
CN103208291A	2013-07-17
CN108986834A	2018-12-11
CN107886967A	2018-04-06
US20170294179A1	2017-10-12
JP2018063400A	2018-04-19
JP2004279768A	2004-10-07

GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

View/Download PDF      PDF Help

Previous Patent: ORGANIC LIGHT-EMITTING DIODE DISPLAY PANEL AND METHOD FOR MANUFACTURING SAME

Next Patent: INFORMATION DISPLAYING METHOD, DEVICE, AND MEDIUM