voice activity detection (vad) meaning in English

声音活动检测

Based on all these above , the results of main research are as follows : ( 1 ) a voice activity detection ( vad ) algorithm based on dct band - partitioning spectral entropy is proposed
本文以此为基础,并取得了如下研究成果: ( 1 )提出了基于dct分带谱熵的语音检测算法。
On the basis of analyzing noise property , this thesis emphasizes on two noise estimation methods : classical method based on voice activity detection ( vad ) and the latest method based on optimal smoothing and minimum statistics . some improvements have been proposed to enhance the vad ’ s performance based on lpc cepstrum coefficients
2 .在分析噪声特性的基础上,重点研究了基于语音活性检测和基于连续更新噪声谱的两种噪声参数估计方法,并提出了将能零积的思想应用到基于lpc倒谱系数的语音活性检测算法中。