Speech enhancement employing Laplacian-Gaussian mixture

EEG signal enhancement using cascaded S-Golay filter

“…In all signal processing applications [40] signal enhancement is a prerequisite step therefore in the present work CSGSF is suggested for the purpose. The two stage Savitzky-Golay FIR smoothing filter for biomedical signal processing is not proposed yet.…”

Speech Enhancement based on Wiener Filter and Compressive Sensing

“…In addition, vector subspace technique used STFT-based techniques for speech enhancement method [17,18]. A vector subspace technique usually has the following measurement step to improve of speech signal.…”

“…KLT is an optimal Eigen decomposition technique, but DCT is more computationally efficient. In general, the vector subspace [17,18] usually uses a Laplace model or Gaussian model to describe the signal subspace, and uses a Gaussian model to describe the noise subspace. In addition,the speech signal [17] degraded by uncorrelated additive noise based on the vector subspace of the noisy signal that can be decomposed into a signal plus noise subspace and the orthogonal noise subspace.…”

Single Channel Speech Enhancement Techniques in Spectral Domain

“…However, some researchers pointed out that there exists other appropriate speech PDF [8][9][10][11]. In 2005, Lotter and Vary have proposed an original speech spectral amplitude PDF.…”

“…Many speech enhancement methods have been established in decades [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. These speech enhancement techniques can be classified to time domain methods and spectral domain methods.…”