期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2015
卷号：4
期号：12
页码：15298-15302
DOI：10.18535/Ijecs/v4i12.35
出版社：IJECS
摘要：The term “Speech Enhancement” refereed as to improve quality or intelligibility of speech signal.Speech signal is often degraded by additive background noise like babble noise, train noise, restaurant noiseetc. In such noisy environment listening task is very difficult at the end user. Many times speechenhancement is used for pre processing of speech for computer speech recognition system. This paperpresents speech enhancement methods like Spectral Subtraction and Modified Spectral Subtraction to reduceadditive background noise. Basically these methods are single channel speech enhancement methods. Here ,we have tested the clean wave file and observe the spectrogram for the noisy wave file and effect of existingspectral subtraction and proposed spectral subtraction algorithm on the file
