基于高階統(tǒng)計方法改進的自適應(yīng)多速率話音激活檢測算法
An improved adaptive multi-rate voice activity detection algorithm based on high order statistics method
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摘要: 該文提出了基于高階統(tǒng)計方法改進的自適應(yīng)多速率話音激活檢測算法,該算法可應(yīng)用于第三代移動通信系統(tǒng)。實驗證明:這種算法可以有效檢測實際移動通信環(huán)境中高斯或非高斯對稱分布的背景噪聲。
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關(guān)鍵詞:
- 高階統(tǒng)計; 話音檢測; 自適應(yīng)多速率
Abstract: An improved voice activity detection algorithm based on high order statistics is proposed. The algorithm can be applied in the 3rd generation mobile communication system. The simulation shows that Gaussian or non-Gaussian symmetric distributed noises in mobile background environment can be detected accurately and suppressed by the new algorithm. -
張賢達,時間序列分析高階統(tǒng)計量方法[M],北京,清華大學(xué)出版社,1996,7-10.[2]易克初,語音信號處理[M],北京,國防工業(yè)出版社,2000.6,56-58.[3]M. Rangoussi, Adaptive detection of noisy speech using third-order-statistics [A], International Journal of Adaptive Control and Signal Processing, 1996, 10(2), 113-136.[4]ITU-T P. 800, Methods for subjective determination of transmission quality, 1996.[5]3GPP TS 26.094 V4.O0, AMR speech codec: voice activity detection, 2001.3.[6]NTT-AT Cop., Multi-Lingual Speech Database for Telephonometry 1996, Japan.[7]NTT-AT Cop., Ambient Noise Database for Telephonometry 1996, Japan.[8]ITU-T P.56, Objective Measurement of Active Speech Level, 1993.3.[9]陳東,趙勝輝,匡鏡明,一種用于3G系統(tǒng)中復(fù)雜背景噪聲環(huán)境下的話音激活檢測算法,通信學(xué)報,2001(4),45-50. -
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