- Patent Title: Residual echo estimator to estimate residual echo based on time correlation, non-transitory computer-readable medium storing program code to estimate residual echo, and application processor
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Application No.: US16546532Application Date: 2019-08-21
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Publication No.: US10854215B2Publication Date: 2020-12-01
- Inventor: Seongwoo Kim , Han Young Yim , Dongil Hyun , Jong Won Shin , Hyungchan Song
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Gyeonggi-do KR Gwangju
- Assignee: Samsung Electronics Co., Ltd.,Gwangju Institute of Science and Technology
- Current Assignee: Samsung Electronics Co., Ltd.,Gwangju Institute of Science and Technology
- Current Assignee Address: KR Gyeonggi-do KR Gwangju
- Agency: Harness, Dickey and Pierce, P.L.C.
- Priority: KR10-2019-0011091 20190129
- Main IPC: G10L21/02
- IPC: G10L21/02 ; G10L21/0216 ; H04R3/04 ; G10L21/0208
Abstract:
A residual echo estimator estimates a residual echo of a microphone signal input to a microphone as a reference signal is output through a speaker. The residual echo estimator estimates a magnitude of a residual echo of the reference signal at a current frame by using a magnitude of the linear echo of the reference signal at the current frame and a magnitude of the linear echo of the reference signal at a past frame, and updates weights to be applied to the magnitudes of the linear echo.
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