Independent component analysis, a new concept?
Signal Processing - Special issue on higher order statistics
Decomposition of quantics in sums of powers of linear forms
Signal Processing - Special issue on higher order statistics
Independent component analysis: theory and applications
Independent component analysis: theory and applications
Learning nonlinear overcomplete representations for efficient coding
NIPS '97 Proceedings of the 1997 conference on Advances in neural information processing systems 10
Learning Overcomplete Representations
Neural Computation
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Speech process has benefited a great deal from the wavelet transforms. Wavelet packets decompose signals in to broader components using linear spectral bisecting. In this paper, mixtures of speech signals are decomposed using wavelet packets, the phase difference between the two mixtures are investigated in wavelet domain. In our method Laplacian Mixture Model (LMM) is defined. An Expectation Maximization (EM) algorithm is used for training of the model and calculation of model parameters which is the mixture matrix. And then we compare estimation of mixing matrix by LMM-EM with different wavelet. Therefore individual speech components of speech mixtures are separated.