公开(公告)号：US11508363B2

公开(公告)日：2022-11-22

申请号：US17072672

申请日：2020-10-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seongwoo Kim ,  Dongil Hyun ,  Jongwon Shin ,  Sein Cheong

IPC: G10L15/20 ,  G10L25/21

Abstract: A speech processing apparatus includes a plurality of microphones configured to receive a plurality of input signals, and processing circuitry configured to generate a spatial filtering signal corresponding to the plurality of input signals through spatial filtering, generate estimated noise information by integrating directional noise information representing a level of a noise signal received from a direction of interest with diffuse noise information representing levels of noise signals received from various directions based on whether the plurality of input signals have directionality, and generate an estimated speech signal by filtering the spatial filtering signal based on the estimated noise information.

公开(公告)号：US10854215B2

公开(公告)日：2020-12-01

申请号：US16546532

申请日：2019-08-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seongwoo Kim ,  Han Young Yim ,  Dongil Hyun ,  Jong Won Shin ,  Hyungchan Song

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.