一种基于宽带噪声的同态滤波语音增强算法分析

A Speech Enhancement Algorithm in Homomorphic Filtering Analysis Based on Broadband Noise

语音通信中,强烈的背景噪声会影响语音信号的传输质量,为了提高语音通信的抗噪声性能,针对说话时伴随着呼吸引起的宽带噪声,分析传统抗噪声方法存在的问题,提出自相关与同态滤波相结合的改进方法,对纯净的语音信号和噪声信号进行分离,提取纯净语音信号。通过实验仿真明显提高了语音处理系统的传输质量,达到了语音增强的目的,其鲁棒性更好。

In the voice communication, the strong background noise will affect the transmission quality of the speech signal. In order to improve the anti-noise performance of voice communication, an improved method which combining autocorrelation and homomorphic filtering is proposed to analyze the problems of traditional noise-resistant methods. Pure voice signal is extracted by separating pure voice signal and noise signal. Through the experimental simulation, the transmission quality of the voice processing system is improved obviously, and the purpose of speech enhancement is achieved, and the robustness is better.