Speech/non-speech discrimination based on contextual information integrated bispectrum LRT

  title={Speech/non-speech discrimination based on contextual information integrated bispectrum LRT},
  author={Javier Ram{\'i}rez and Juan Manuel G{\'o}rriz and Jos{\'e} C. Segura and Carlos Garc{\'i}a Puntonet and Antonio J. Rubio},
  journal={IEEE Signal Processing Letters},
This letter shows an effective statistical voice activity detection algorithm based on the integrated bispectrum, which is defined as a cross spectrum between the signal and its square and inherits the ability of higher order statistics to detect signals in noise with many other additional advantages: 1) its computation as a cross spectrum leads to significant computational savings, and 2) the variance of the estimator is of the same order as that of the power spectrum estimator. The decision… CONTINUE READING
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An improved MO-LRT VAD based on a bispectra Gaussian model

  • J. M. Górriz, J. Ramírez, J. C. Segura, C. G. Puntonet
  • Electron. Lett., vol. 41, no. 15, pp. 877–879…
  • 2005
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