Sub-Band Level Histogram Equalization for Robust Speech Recognition.
Vikas JoshiRaghavendra BilgiSrinivasan UmeshLuz GarcíaM. Carmen BenítezPublished in: INTERSPEECH (2011)
Keyphrases
- speech recognition
- subband
- histogram equalization
- noisy environments
- hidden markov models
- image enhancement
- automatic speech recognition
- pattern recognition
- wavelet transform
- language model
- multiresolution
- speech synthesis
- speech signal
- contrast enhancement
- discrete wavelet transform
- feature vectors
- speech recognizer
- low frequency
- high frequency
- filter bank
- neural network
- wavelet coefficients
- image compression
- frequency domain
- bit rate
- gray scale
- gray level
- speaker identification
- speech recognition systems
- feature extraction
- speaker independent
- wavelet decomposition
- wavelet domain
- visual information
- low level
- information retrieval