公开(公告)号：US10403301B2

公开(公告)日：2019-09-03

申请号：US15789131

申请日：2017-10-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Christof Faller ,  Alexis Favrot ,  Peter Grosche ,  Yue Lang

IPC: G10L25/84 ,  G10L21/034 ,  G10L21/02 ,  G10L25/78

Abstract: The invention relates to an audio signal processing apparatus for processing an input earpiece audio signal upon the basis of a microphone audio signal, the audio signal processing apparatus comprising a voice activity detector being configured to determine a voice activity indicator signal upon the basis of the input earpiece audio signal, a noise magnitude determiner being configured to determine a microphone noise magnitude indicator signal upon the basis of the microphone audio signal, a gain factor determiner being configured to determine a gain factor signal upon the basis of the voice activity indicator signal and the microphone noise magnitude indicator signal, and a weighter being configured to weight the input earpiece audio signal by the gain factor signal to obtain an output earpiece audio signal.

公开(公告)号：US20180324541A1

公开(公告)日：2018-11-08

申请号：US16001411

申请日：2018-06-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liyun Pang ,  Peter Grosche ,  Christof Faller ,  Alexis Favrot

IPC: H04S7/00

CPC classification number: H04S7/303 ,  H04S1/005 ,  H04S2400/11 ,  H04S2420/01

Abstract: An audio signal processing apparatus, comprising a memory configured to store a set of pairs of predefined left ear and right ear transfer functions, which are predefined for a plurality of reference positions relative to the listener, a processor configured to determine a pair of left ear and right ear transfer functions on the basis of the set of predefined pairs of predefined left ear and right ear transfer functions for the azimuth angle and the elevation angle of the virtual target position and an adjustment filter configured to filter the input audio signal on the basis of the determined pair of left ear and right ear transfer functions and an adjustment function configured to adjust a delay between the left ear transfer function and the right ear transfer function to obtain a left ear output audio signal and a right ear output audio signal.