公开(公告)号：US09349363B2

公开(公告)日：2016-05-24

申请号：US13937521

申请日：2013-07-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae-hoon Jeong ,  Andreas Schwarz ,  Walter Kellermann

IPC: H04B3/20 ,  G10K11/16 ,  H04M9/08 ,  H04R3/02 ,  H04R3/04 ,  H04R27/00 ,  H04R3/12

CPC classification number: G10K11/16 ,  H04M9/082 ,  H04R3/02 ,  H04R3/04 ,  H04R3/12 ,  H04R2499/11 ,  H04R2499/15

Abstract: An audio signal processing system and an echo signal removing method thereof are provided. The audio signal processing system includes a speaker that is configured to output an audio signal; a microphone that is configured to receive the audio signal output by the speaker including an echo signal generated by the audio signal; an echo signal delay unit that is configured to delay the echo signal for a bulk delay time, and output the echo signal that is delayed; and an echo signal removing unit that is configured to remove the echo signal that is delayed and output by the echo signal delay unit from the audio signal received by the microphone, wherein the echo signal delay unit includes a bulk delay measuring unit that is configured to measure a bulk delay by analyzing impulse response characteristics of an echo path.

Abstract translation: 提供一种音频信号处理系统及其回波信号去除方法。 音频信号处理系统包括配置成输出音频信号的扬声器; 麦克风，被配置为接收由扬声器输出的音频信号，包括由音频信号产生的回波信号; 回波信号延迟单元，其被配置为延迟所述回波信号以进行大量延迟时间，并输出延迟的回波信号; 以及回波信号去除单元，其被配置为从由所述麦克风接收的所述音频信号中去除由所述回波信号延迟单元延迟和输出的所述回波信号，其中所述回波信号延迟单元包括体延迟测量单元， 通过分析回波路径的脉冲响应特性来测量体积延迟。