公开(公告)号：US20140328490A1

公开(公告)日：2014-11-06

申请号：US14156292

申请日：2014-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： Asif Iqbal Mohammad ,  Lae-Hoon Kim ,  Ian Eman Liu ,  Erik Visser

IPC: H04R3/00

CPC classification number: H04R3/002 ,  H04M9/082

Abstract: A method for multi-channel echo cancellation and noise suppression is described. One of multiple echo estimates is selected for non-linear echo cancellation. Echo notch masking is performed on a noise-suppressed signal based on an echo direction of arrival (DOA) to produce an echo-suppressed signal. Non-linear echo cancellation is performed on the echo-suppressed signal based, at least in part, on the selected echo estimate.

Abstract translation: 描述了一种用于多声道回波消除和噪声抑制的方法。 选择多重回波估计之一用于非线性回波消除。 基于回波到达方向（DOA）对噪声抑制信号进行回波陷波掩蔽，以产生回波抑制信号。 至少部分地基于所选择的回波估计，对回波抑制信号执行非线性回波消除。