Acoustic noise reduction for speech communication: (second-order gradient microphone).
George S. KangDavid A. HeidePublished in: ISCAS (4) (1999)
Keyphrases
- noise reduction
- speech enhancement
- edge detection
- noisy environments
- automatic speech recognition
- speech signal
- edge preserving
- signal to noise ratio
- sound source
- acoustic features
- noise level
- speech sounds
- speech recognition
- median filter
- noise removal
- hearing impaired
- speech recognition systems
- wiener filter
- higher order
- speaker diarization
- audio visual
- multiscale
- noise detection
- speckle noise
- noise filtering
- edge enhancement
- single channel
- fourth order
- edge detector
- hidden markov models
- speaker identification
- bilateral filter
- noise free
- visual speech
- image processing
- anisotropic diffusion
- vowel phonemes