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Background noise estimation method for an improved G.729 annex B compliant voice activity detection circuit
Background noise estimation method for an improved G.729 annex B compliant voice activity detection circuit
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机译:改进的符合G.729附件B的语音活动检测电路的背景噪声估计方法
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摘要
A method of initializing an ITU Recommendation G.729 Annex B compliant voice activity detection (VAD) device is disclosed, having the steps of (1) determining a first set of running average background noise characteristics in accordance with Recommendation G.729B; (2) determining a second set of running average background noise characteristics; and (3) substituting the second set of running average background noise characteristics for the first set when a specific event occurs. The specific event is a divergence between the first and second sets of running average background noise characteristics.
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