Optimal selection of wavelet-packet-based features using genetic algorithm in pathological assessment of patients' speech signal with unilateral vocal fold paralysis.
Roozbeh BehroozmandFarshad AlmasganjPublished in: Comput. Biol. Medicine (2007)
Keyphrases
- speech signal
- optimal selection
- wavelet packet
- speech recognition
- feature extraction
- cepstral coefficients
- non stationary
- feature set
- noisy environments
- denoising
- automatic speech recognition
- speaker identification
- computer vision
- state space
- wavelet transform
- image classification
- low level
- hidden markov models
- multiscale
- acoustic features
- similarity measure
- wavelet packet decomposition