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Voice activity detector for speech signals in variable background noise 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G10L-009/00
출원번호 US-0038734 (1993-03-26)
발명자 / 주소
  • Gupta Prabhat K. (Germantown MD) Jangi Shrirang (Germantown MD) Lamkin Allan B. (Arlington VA) Kepley
  • III W. Robert (Gaithersburg
  • MD) Morris Adrian J. (Gaithersburg
  • MD)
출원인 / 주소
  • Hughes Aircraft Company (Los Angeles CA 02)
인용정보 피인용 횟수 : 85  인용 특허 : 0

초록 ▼

A voice activity detector (VAD) which determines whether an input signal contains speech by deriving parameters measuring short term time domain characteristics of the input signal, including the average signal level and the absolute value of any change in average signal level, and comparing the der

대표청구항 ▼

A method of detecting voice activity in a communications system, said method comprising: receiving voice signal samples including background noise; computing an average signal level as a short term average energy of said voice signal samples; deriving at least two other secondary voice signal parame

이 특허를 인용한 특허 (85)

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