Sub-band based Log-energy and Its Dynamic Range Stretching for Robust In-car Speech Recognition.
Weifeng LiHervé BourlardPublished in: INTERSPEECH (2012)
Keyphrases
- speech recognition
- dynamic range
- subband
- noisy environments
- high dynamic range
- hidden markov models
- language model
- speech signal
- high frequency
- wavelet transform
- discrete wavelet transform
- multiresolution
- low pass
- frequency domain
- wavelet coefficients
- speaker identification
- high pass
- filter bank
- signal to noise ratio
- wavelet decomposition
- speech recognition systems
- transfer function
- low frequency
- pattern recognition
- spatially varying
- frequency band
- image compression
- signal processing
- feature vectors
- information retrieval
- bit rate
- histogram equalization