Available Technology

Automatic Voice Activity Detection in a Signal

Device for and Method of Detecting Voice Activity

This technology eliminates the need to manually search audio files for speech content by automatically locating speech intervals that contain other signals such as music, noise, or even silence. It reports the start and stop times of these intervals relative to the beginning of the file, ignoring non-speech portions of the file. By classifying signal segments as speech or non-speech, this technology improves the performance of speaker recognition systems by reducing the amount of bandwidth and traffic to be analyzed.

 

Abstract: 

Click to view PDFs of these patents on the US Patent and Trademark Office website: Patent #7,127,392

applications: 
  • Automated transcription services
  • Voice over IP (VoIP) and mobile telephony
  • Audio conferencing
  • Speaker recognition processing
Patent Number: 
7,127,392
Patent Issue Date: 
October 24, 2006
Email: 
tech_transfer@nsa.gov
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