Efficient Multi-Channel Acoustic Echo Cancellation Using Constrained Sparse Filter Updates in the Subband Domain.
Naveen Kumar DesirajuSimon DocloTimo GerkmannTobias WolffPublished in: ITG Symposium on Speech Communication (2014)
Keyphrases
- multi channel
- subband
- high frequency
- wavelet transform
- filter bank
- multiresolution
- image compression
- bit rate
- perfect reconstruction
- locally adaptive
- high pass
- feature vectors
- wavelet domain
- wavelet coefficients
- subband decomposition
- single channel
- frequency domain
- low frequency
- quadrature mirror
- wavelet decomposition
- discrete wavelet transform
- wavelet packet
- bandpass
- image coding
- sparse representation
- high dimensional
- noise reduction
- denoising
- subband coding
- reconstruction error
- low pass
- computationally efficient
- wavelet filters
- image quality
- temporal filtering
- rate distortion