Figure 14From: A semisoft thresholding method based on Teager energy operation on wavelet packet coefficients for enhancing noisy speechSpectrogram of sp03.wav utterance by a male speaker from the NOIZEUS database. (a) Clean speech, (b) noisy speech (white noise from NOISEX92 database of 5-dB SNR), (c, d, e, f) enhanced speech signals obtained using the Universal, WPF, WTHSKL, and the proposed methods, respectively.Back to article page