Robust Whisper Activity Detection Using Long-Term Log Energy Variation of Sub-Band Signal.
Nisha MeenakshiPrasanta Kumar GhoshPublished in: IEEE Signal Process. Lett. (2015)
Keyphrases
- activity detection
- subband
- long term
- high frequency
- low frequency
- frequency domain
- bandpass
- multiresolution
- filter bank
- low pass
- wavelet transform
- discrete wavelet transform
- wavelet coefficients
- wavelet packet
- frequency band
- wavelet decomposition
- perfect reconstruction
- image compression
- bit rate
- high pass
- wavelet packet decomposition
- feature vectors
- signal processing
- wavelet domain
- high resolution
- locally adaptive
- spatial domain
- face recognition