	US 11,869,528 B2
	Voice signal processing method and device, apparatus, and readable storage medium
Sainan Zhu, Suzhou (CN); Hongjie Pu, Suzhou (CN); Renxiang Yan, Suzhou (CN); and Lijun Cao, Suzhou (CN)
Assigned to SUZHOU KEDA TECHNOLOGY CO., LTD., Suzhou (CN)
Appl. No. 17/438,640
Filed by SUZHOU KEDA TECHNOLOGY CO., LTD., Suzhou (CN)
PCT Filed Oct. 15, 2019, PCT No. PCT/CN2019/111319 § 371(c)(1), (2) Date Sep. 13, 2021, PCT Pub. No. WO2020/181766, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 201910195602.X (CN), filed on Mar. 14, 2019.
Prior Publication US 2022/0223166 A1, Jul. 14, 2022
Int. Cl. G10L 21/0232 (2013.01); G10L 21/0264 (2013.01); G10L 21/034 (2013.01); G10L 25/06 (2013.01); G10L 25/21 (2013.01); G10L 21/0208 (2013.01); H04M 3/56 (2006.01); H04M 9/08 (2006.01); G10L 25/18 (2013.01)

CPC G10L 21/0232 (2013.01) [G10L 21/0264 (2013.01); G10L 21/034 (2013.01); G10L 25/06 (2013.01); G10L 25/18 (2013.01); G10L 25/21 (2013.01); H04M 3/568 (2013.01); H04M 9/082 (2013.01); G10L 2021/02082 (2013.01)]

9 Claims

1. A voice signal processing method, comprising:

acquiring a status coefficient, a target voice signal to be processed, and a derivative signal of the target voice signal;

using the derivative signal to respectively calculate an initial echo loss corresponding to each signal frame in the target voice signal, and using the status coefficient to adjust the initial echo loss to acquire a target echo loss;

using the derivative signal to calculate a proximal-distal coherence value of the target voice signal;

judging whether the target echo loss matches with a single-talk echo state;

if the target echo loss matches with a single-talk echo state, recording the proximal-distal coherence value in status statistical data, and updating statistical information;

using the statistical information to update the status coefficient, and performing volume control on the target voice signal when updating the status coefficient.