公开(公告)号：CA2981690A1

公开(公告)日：2016-10-13

申请号：CA2981690

申请日：2016-04-11

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS ,  LACOLLE MATTHIEU

IPC: H04R3/00 ,  G01S3/80 ,  G10L15/00 ,  G10L21/0216 ,  G10L25/78 ,  H04R1/40

Abstract: An optical microphone arrangement comprises: an array of optical microphones (4) on a substrate (8), each of said optical microphones (4) providing a signal indicative of displacement of a respective membrane (24) as a result of an incoming audible sound; at first processor (12) arranged to receive said signals from said optical microphones (4) and to perform a first processing step on said signals to produce a first output; and a second processor (14) arranged to receive at least one of said signals or said first output; wherein at least said second processor (14) determines presence of at least one element of human speech from said audible sound.