基于级联式改进型谱减算法的语音去噪技术研究

Speech Denoising Based on Cascaded-Improved Spectrum Subtraction Method

在研究基本谱相减法的基础之上,提出了一种级联式改进型谱减算法。通过适当调整三个基本谱减系数值的大小和多次级联谱相减的处理方式,该方法有效的去处了含噪语音中的环境噪声和由谱减法引起的"音乐噪声",从而取得了良好的语音去噪效果,同时也为语音增强技术的研究提供了重要参考。

This paper puts forward spectrum subtraction algorithm a cascaded-improved spectrum subtraction algorithm based on the research of the basic By properly adjusting the values of the three basic spectrum subtraction coefficient and times process modes of cascaded spectrum subtraction,the method effectively weakens the environmental noise in noisy speech and the musical noise caused by spectrum subtraction algorithm.This paper obtains a good effect of speech denoising,and at the same time it also provides an important reference to the research of speech enhancement technology.