摘要
介绍了减谱法进行语音增强的一种方法 .分别对语音和噪声信号进行傅立叶变换 ,求得它们的频谱 ,相减得到的是去噪后语音的频谱 ,再进行傅立叶反变换 ,即可得到增强语言信号 。
A general problem of removing additive background noise from the noisy speech in the spectral subtraction is described. Fourier transform is used in noisy speech and noise respective to get their frequency spectrum.The frequency spectrum of pure speech is got through subtration. After inverse Fourier transform of subtration spectrum, the pure speech is got.
出处
《苏州大学学报（自然科学版）》
CAS
2002年第3期58-61,共4页
Journal of Soochow University(Natural Science Edition)
关键词
减谱法
傅立叶变换
语音增强
spectral subtraction
Fourier transform
speech enhancement
