DCT and Wiener filter based on approach for speech enhancement using a single microphone

OU Shi-feng; ZHAO Xiao-hui; GU Hai-jun

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DCT and Wiener filter based on approach for speech enhancement using a single microphone

更新时间：2024-10-14

- DCT and Wiener filter based on approach for speech enhancement using a single microphone
- Issue 10, Pages: 86-93(2006)
- 作者机构：
  
  1. 吉林大学通信工程学院信息科学实验室
  2. 吉林大学通信工程学院信息科学实验室,吉林,长春,130012
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN912.35
- Published：2006
- 稿件说明：
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OU Shi-feng, ZHAO Xiao-hui, GU Hai-jun. DCT and Wiener filter based on approach for speech enhancement using a single microphone[J]. 2006, (10): 86-93.
DOI：

OU Shi-feng, ZHAO Xiao-hui, GU Hai-jun. DCT and Wiener filter based on approach for speech enhancement using a single microphone[J]. 2006, (10): 86-93. DOI：

摘要

针对复杂噪声背景下的语音增强问题

基于离散余弦变换(DCT)和维纳滤波提出了一种新的单通道语音增强算法。该算法不依赖任何语音信号模型且无需对噪声的统计特性进行先验假定

它利用DCT域中连续时刻语音信号分量间的相关特性结合最小均方误差算法实现纯净语音分量的最优估计

弥补了一般算法仅依赖单帧带噪语音对语音分量估计得不足。多种噪声背景下的仿真结果表明

该算法在主观和客观测试中都具有良好的语音增强效果。

Abstract

Considering the enhancement of speech corrupted by complicated additive noise

a novel algorithm was proposed based on discrete cosine transform（DCT） and Wiener filter using a single microphone.This algorithm did not rely on any speech signal model and could efficiently attain the optimal estimation of clean speech components using successive noisy speech components and minimum mean square error estimation in DCT domain.Furthermore

it could overcome the disad-vantage of independent assumptions in classic methods for speech components.Simulation results demonstrate that the pro-posed algorithm possesses good performance both in objective and subjective tests with different kinds of noise.

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