eesungkim / Voice_activity_detector
A statistical model-based Voice Activity Detection
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A statistical model-based Voice Activity Detector
A voice activity detector applied a statistical model has been made in [2], where the decision rule is derived from the likelihood ratio test (LRT) by estimating unknown parameters using the decision-directed method. Hang-over scheme based on the hidden Markov model (HMM) are applied for smoothing.
Run the demo
python vad.py
Results
References
- [1] J. Sohn, N. S. Kim, and W. Sung. "A statistical model-based voice activity detection," IEEE Signal Processing Letters, Vol. 6, issue 1, pp. 1-3, Jan. 1999.
- [2] Y. Ephraim and D. Malah, "Speech enhancement using a minimum-mean square error short-time spectral amplitude estimator," IEEE Trans Acoustics Speech and Signal Processing, VOL. 32(6):1109-1121, Dec 1984.
TODO(will be uploaded):
- [ ] Q. H. Jo, J. H. Chang, J. W. Shin, and N. S. Kim, “Statistical model-based voice activity detection using support vector machine,” IET Signal Process., vol. 3, no. 3, pp. 205–210, 2009.
- [ ] X.-L. Zhang and J. Wu, “Deep belief networks based voice activity detection,” IEEE Trans. Audio Speech Lang. Process., vol. 21, no. 4, pp. 697–710, Apr. 2013.
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