Invention Grant
US08554556B2 Multi-microphone voice activity detector 有权
多麦克风语音活动检测器

  • Patent Title: Multi-microphone voice activity detector
  • Patent Title (中): 多麦克风语音活动检测器
  • Application No.: US13001334
    Application Date: 2009-06-25
  • Publication No.: US08554556B2
    Publication Date: 2013-10-08
  • Inventor: Rongshan Yu
  • Applicant: Rongshan Yu
  • Applicant Address: US CA San Francisco
  • Assignee: Dolby Laboratories Corporation
  • Current Assignee: Dolby Laboratories Corporation
  • Current Assignee Address: US CA San Francisco
  • International Application: PCT/US2009/048562 WO 20090625
  • International Announcement: WO2010/002676 WO 20100107
  • Main IPC: G10L15/20
  • IPC: G10L15/20
Multi-microphone voice activity detector
Abstract:
A dual microphone voice activity detector system is presented. A voice activity detector system estimates the signal level and noise level at each microphone. A level differential between the two microphones of nearby sounds such as the signal is greater than the level differential of more distant sounds such as the noise. Thus, the voice activity detector detects the presence of nearby sounds.
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