Speech enhancement based on wavelet packet of an improved principal component analysis ?
Integrating the principal component analysis in wavelet packet decomposition. Extended PCA technique for speech enhancement is considered. To obtain a sparse matrix to contain the enhanced speech. Experiments on NOIZEUS data corrupted by Gaussian and four non-stationary noises. Our approach shows superior outcomes in BSS EVAL toolbox, SegSNR, PESQ, and Cov.
speech enhancement principal components analysis sparse matrix wavelet packet analysis