Comparison between DFT-, FCT-, Wavelet-, and Lattice Filter-Based Noise Reduction for ASR.
Erhard RankAmar Al-KhayatTuan Van PhamZsolt SafferMichael StarkPublished in: RIVF (2010)
Keyphrases
- noise reduction
- noisy environments
- edge preserving
- signal to noise ratio
- denoising algorithm
- noise level
- noise removal
- edge detection
- multiscale
- median filter
- edge enhancement
- wiener filter
- denoising methods
- soft thresholding
- noise filtering
- multiresolution
- fourier transform
- noise free
- impulsive noise
- wavelet coefficients
- denoising
- wavelet transform
- impulse noise
- edge preservation
- automatic speech recognition
- wavelet domain
- discrete fourier transform
- bilateral filter