公开(公告)号：CA2798512A1

公开(公告)日：2011-11-10

申请号：CA2798512

申请日：2011-05-03

Applicant: ALIPHCOM INC

Inventor： JING ZHINIAN ,  PETIT NICOLAS ,  BURNETT GREGORY C

IPC: G10L25/78 ,  G01H1/12 ,  G10L21/0208 ,  G10L25/06 ,  G10L25/84 ,  G10L25/90 ,  G10L25/93

Abstract: A voice activity detector (VAD) combines the use of an acoustic VAD and a vibration sensor VAD as appropriate to the conditions a host device is operated. The VAD includes a first detector receiving a first signal and a second detector receiving a second signal. The VAD includes a first VAD component coupled to the first and second detectors. The first VAD component determines that the first signal corresponds to voiced speech when energy resulting from at least one operation on the first signal exceeds a first threshold. The VAD includes a second VAD component coupled to the second detector. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold.

公开(公告)号：AU2011248283A1

公开(公告)日：2012-11-29

申请号：AU2011248283

申请日：2011-05-03

Applicant: ALIPHCOM INC

Inventor： JING ZHINIAN ,  PETIT NICOLAS ,  BURNETT GREGORY C

IPC: H04R29/00

Abstract: A voice activity detector (VAD) combines the use of an acoustic VAD and a vibration sensor VAD as appropriate to the conditions a host device is operated. The VAD includes a first detector receiving a first signal and a second detector receiving a second signal. The VAD includes a first VAD component coupled to the first and second detectors. The first VAD component determines that the first signal corresponds to voiced speech when energy resulting from at least one operation on the first signal exceeds a first threshold. The VAD includes a second VAD component coupled to the second detector. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold.

公开(公告)号：EP2165564A4

公开(公告)日：2012-03-21

申请号：EP08771095

申请日：2008-06-13

Applicant: ALIPHCOM INC

Inventor： BURNETT GREGORY C

IPC: H04R3/00 ,  G10L21/02 ,  H04R1/40 ,  H04R3/04

CPC classification number: H04R1/1091 ,  G10L21/0208 ,  G10L2021/02165 ,  H04R1/406 ,  H04R3/002 ,  H04R3/005 ,  H04R3/04 ,  H04R2460/01

公开(公告)号：WO2008148048A3

公开(公告)日：2009-07-30

申请号：PCT/US2008064773

申请日：2008-05-23

Applicant: ALIPHCOM INC ,  BURNETT GREGORY C

Inventor： BURNETT GREGORY C

IPC: H04R9/08

CPC classification number: H04R3/005 ,  H04R2410/05

Abstract: A microphone array is described for use in ultra-high acoustical noise environments. The microphone array includes two directional close-talk microphones. The two microphones are separated by a short distance so that one microphone picks up more speech than the other. The microphone array can be used along with an adaptive noise removal program to remove a significant portion of noise from a speech signal of interest

Abstract translation: 麦克风阵列被描述用于超高声学噪声环境。 麦克风阵列包括两个方向性的关键麦克风。 两个麦克风分开很短的距离，使一个麦克风比另一个麦克风拾取更多的语音。 麦克风阵列可以与自适应噪声去除程序一起使用以从感兴趣的语音信号中去除大部分噪声