公开(公告)号：US20030033148A1

公开(公告)日：2003-02-13

申请号：US10206572

申请日：2002-07-25

Applicant: Apple Computer, Inc.

Inventor： Kim E. Silverman ,  Devang K. Naik

IPC: G10L011/00

CPC classification number: G10L15/20 ,  G10L2021/02165 ,  G10L2021/02166

Abstract: A speech recognition device with a frequency range with an upper frequency limit fmax is provided. The speech recognition device has more than two microphones with distances between the microphones, wherein the greatest common factor of the distances between the microphones is less than the speed of sound divided by fmax. More particularly, where the microphones are spaced a total distance, the number of the more than two microphones is less than the one half the total distance times the upper frequency limit divided by the speed of sound.

Abstract translation: 提供具有频率范围为上限频率fmax的语音识别装置。 语音识别装置具有两个具有麦克风之间的距离的麦克风，其中麦克风之间距离的最大公差因子小于声速除以fmax。 更具体地说，在麦克风间隔总距离的地方，多于两个麦克风的数目小于上限频率除以声速的总距离的一半。