【摘要】 本文介绍了一种基于功率谱减的方法来增强带有白噪声的语音信号．过量功率谱减是语音增强的一个有效的方法，其处理后产生的纯音噪声采用中心限幅的方法可以很好地得到抑制．本文中对-8dB-＋3dB的汉语语句处理，信噪比可提高6dB－10dB．更多还原

【Abstract】 This paper describes a method for enhancing speech degraded by white noise, based on the power spectrum subtraction. The Subtraction of the noise power spectrum over-estimate is an effective method. A new noise appearing in the processed signal, referred to as "music noise", can be effectively eliminated by using "center-clipping process". In experiment, sentences of Chinese with about -8dB-+3dB signal-to-noise ratio was processed and improved up to 6dB-10dB.更多还原