Speech enhancement using adaptive time-domain segmentation
Sriram Srinivasan, Willem Bastiaan Kleijn · 2004
In this paper, we investigate the benets of using an adaptive seg-mentation of the speech signal in speech enhancement. The adap-tive segmentation scheme divides the signal into the longest seg-ments within which stationarity is preserved, thus providing a good time-frequency resolution. The segmentation is performed with the help of an orthogonal library of local cosine bases using a compu-tationally efcient tree-structured best-basis search. We show that such an adaptive segmentation results in improved speech enhance-ment compared to a xed segmentation. The resulting enhanced speech is free from musical noise, without any additional smooth-ing. 1.