公开(公告)号：US09497544B2

公开(公告)日：2016-11-15

申请号：US13933005

申请日：2013-07-01

Applicant: QUALCOMM Incorporated

Inventor： Asif I. Mohammad ,  Lae-Hoon Kim ,  Erik Visser

IPC: H04B3/20 ,  H04R3/00 ,  H04B15/00 ,  G10L21/0208

CPC classification number: H04R3/005 ,  G10L2021/02082 ,  H04B3/20 ,  H04R2430/23

Abstract: A method for echo reduction by an electronic device is described. The method includes nulling at least one speaker. The method also includes mixing a set of runtime audio signals based on a set of acoustic paths to determine a reference signal. The method also includes receiving at least one composite audio signal that is based on the set of runtime audio signals. The method further includes reducing echo in the at least one composite audio signal based on the reference signal.

Abstract translation: 描述了一种通过电子设备进行回波减少的方法。 该方法包括使至少一个扬声器归零。 该方法还包括基于一组声学路径混合一组运行时音频信号以确定参考信号。 该方法还包括接收至少一个基于该组运行时音频信号的复合音频信号。 该方法还包括基于参考信号减少至少一个复合音频信号中的回波。

公开(公告)号：US20140003611A1

公开(公告)日：2014-01-02

申请号：US13933005

申请日：2013-07-01

Applicant: QUALCOMM Incorporated

Inventor： Asif I. Mohammad ,  Lae-Hoon Kim ,  Erik Visser

IPC: H04R3/00

CPC classification number: H04R3/005 ,  G10L2021/02082 ,  H04B3/20 ,  H04R2430/23

Abstract: A method for echo reduction by an electronic device is described. The method includes nulling at least one speaker. The method also includes mixing a set of runtime audio signals based on a set of acoustic paths to determine a reference signal. The method also includes receiving at least one composite audio signal that is based on the set of runtime audio signals. The method further includes reducing echo in the at least one composite audio signal based on the reference signal.

Abstract translation: 描述了一种通过电子设备进行回波减少的方法。 该方法包括使至少一个扬声器归零。 该方法还包括基于一组声学路径混合一组运行时音频信号以确定参考信号。 该方法还包括接收至少一个基于该组运行时音频信号的复合音频信号。 该方法还包括基于参考信号减少至少一个复合音频信号中的回波。