Invention Grant
US08503691B2 Virtual microphone arrays using dual omnidirectional microphone array (DOMA) 有权
使用双向全向麦克风阵列(DOMA)的虚拟麦克风阵列

  • Patent Title: Virtual microphone arrays using dual omnidirectional microphone array (DOMA)
  • Patent Title (中): 使用双向全向麦克风阵列(DOMA)的虚拟麦克风阵列
  • Application No.: US12139333
    Application Date: 2008-06-13
  • Publication No.: US08503691B2
    Publication Date: 2013-08-06
  • Inventor: Gregory C. Burnett
  • Applicant: Gregory C. Burnett
  • Applicant Address: US CA San Francisco
  • Assignee: AliphCom
  • Current Assignee: AliphCom
  • Current Assignee Address: US CA San Francisco
  • Agency: Kokka & Backus, PC
  • Main IPC: H04R3/00
  • IPC: H04R3/00
Virtual microphone arrays using dual omnidirectional microphone array (DOMA)
Abstract:
A dual omnidirectional microphone array noise suppression is described. Compared to conventional arrays and algorithms, which seek to reduce noise by nulling out noise sources, the array of an embodiment is used to form two distinct virtual directional microphones which are configured to have very similar noise responses and very dissimilar speech responses. The only null formed is one used to remove the speech of the user from V2. The two virtual microphones may be paired with an adaptive filter algorithm and VAD algorithm to significantly reduce the noise without distorting the speech, significantly improving the SNR of the desired speech over conventional noise suppression systems.
Public/Granted literature
Information query
Patent Agency Ranking
0/0