Wavelet-based Adaptive Multiresolution Tools Applied to Speech Recognition
Andreas Simon · Publication Server of Kaiserslautern University of Technology (Kaiserslautern University of Technology) · 2006
* naive examples which show drawbacks of discrete wavelet transform and windowed Fourier transform; * adaptive partition (with a 'best basis' approach) of speech-like signals by means of local trigonometric bases with orthonormal windows. * extraction of formant-like features from the cosine transform; * further proceedingings for classification of vowels or voiced speech are suggested at the end.