A statistical model-based voice activity detection
作者： Jongseo Sohn , Nam Soo Kim , Wonyong Sung
DOI: 10.1109/97.736233
关键词:
摘要: In this letter, we develop a robust voice activity detector (VAD) for the application to variable-rate speech coding. The developed VAD employs decision-directed parameter estimation method likelihood ratio test. addition, propose an effective hang-over scheme which considers previous observations by first-order Markov process modeling of occurrences. According our simulation results, proposed shows significantly better performances than G.729B in low signal-to-noise (SNR) and vehicular noise environments.
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