Anova Law Group, PLLC
Voice activity detection based on entropy-energy feature
This application discloses a voice activity detection method. The method includes receiving speech data, the speech data including a multi-frame speech signal; determining energy and spectral entropy of a frame of speech signal; calculating a square root of the energy of the speech signal and/or calculating a square root of the spectral entropy of the frame of the speech signal; determining a spectral entropy-energy square root of the frame of the speech signal based on at least one of the square root of the energy and the square root of the spectral entropy; and determining that the frame of the speech signal is an unvoiced frame if the spectral entropy-energy square root of the speech signal is less than a first threshold, or that it is a voiced frame if the spectral entropy-energy square root of the speech signal is greater than or equal to the first threshold.
TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
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Jizhong
Liu