文章摘要
李国锋.低信噪比下的语音增强处理[J].,1995,14(5):13-16
低信噪比下的语音增强处理
Enhancement of low snr speech
  
中文摘要:
      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.
英文摘要:
      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.
DOI:10.11684/j.issn.1000-310X.1995.05.003
中文关键词: 低信噪比  语音增强  功率谱
英文关键词: Low signal-to-noise ratio  Speech enhancement  The power spectrum
基金项目:
作者单位
李国锋 南京市公安科学技术研究所!南京210001 
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