公开(公告)号：US20210201894A1

公开(公告)日：2021-07-01

申请号：US17200649

申请日：2021-03-12

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Lei GENG

IPC: G10L15/08 ,  G10L21/0208 ,  G10L25/78 ,  H04R3/04

Abstract: A signal processing method, a signal processing device, and an electronic device are provided. The signal processing method includes: acquiring a first input audio signal and a first operation mode corresponding to the first input audio signal; processing the first input audio signal by a first signal processing algorithm in a digital signal processing chip, and outputting a first target signal, wherein, the digital signal processing chip is integrated with a plurality of signal processing algorithms, and the first signal processing algorithm is an algorithm matching the first operation mode among the plurality of signal processing algorithms.

公开(公告)号：US20190244628A1

公开(公告)日：2019-08-08

申请号：US16207005

申请日：2018-11-30

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Lei GENG

IPC: G10L21/0232 ,  H04R1/32

CPC classification number: G10L21/0232 ,  G10L2021/02082 ,  H04R1/326

Abstract: Embodiments of the present disclosure provide a method and a device for cancelling an echo, and a computer readable storage medium. The device includes a loudspeaker configured to play an acoustic signal corresponding to an analog audio signal. The device further includes a microphone configured to convert a mixed acoustic signal received into a mixed audio signal. The mixed acoustic signal includes an echo of the acoustic signal played and an acoustic signal from a user. The device further includes an analog-to-digital converter configured to convert the analog audio signal into a digital signal as an echo reference signal. The device further includes an echo canceller, configured to cancel an echo component from the mixed audio signal using the echo reference signal to obtain a user audio signal corresponding to the acoustic signal from the user.