公开(公告)号：US20180330745A1

公开(公告)日：2018-11-15

申请号：US15595168

申请日：2017-05-15

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Samuel P. EBENEZER ,  Rachid KERKOUD

IPC: G10L21/0264 ,  H04R3/00 ,  G10L19/005 ,  G10L21/0208 ,  H04R1/10

CPC classification number: G10L21/0264 ,  G10L19/005 ,  G10L21/0208 ,  G10L25/78 ,  G10L2021/02165 ,  G10L2021/02166 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/40 ,  H04R2430/23 ,  H04R2460/01

Abstract: In accordance with embodiments of the present disclosure, a method for voice processing in an audio device having an array of a plurality of microphones wherein the array is capable of having a plurality of positional orientations relative to a user of the array, is provided. The method may include periodically computing a plurality of normalized cross-correlation functions, each cross-correlation function corresponding to a possible orientation of the array with respect to a desired source of speech, determining an orientation of the array relative to the desired source based on the plurality of normalized cross-correlation functions, detecting changes in the orientation based on the plurality of normalized cross-correlation functions, and responsive to a change in the orientation, dynamically modifying voice processing parameters of the audio device such that speech from the desired source is preserved while reducing interfering sounds.