Title
Denoising in the domain of spectrotemporal modulations
Abstract
A noise suppression algorithm is proposed based on filtering the spectrotemporal modulations of noisy signals. The modulations are estimated from a multiscale representation of the signal spectrogram generated by a model of sound processing in the auditory system. A significant advantage of this method is its ability to suppress noise that has distinctive modulation patterns, despite being spectrally overlapping with the signal. The performance of the algorithm is evaluated using subjective and objective tests with contaminated speech signals and compared to traditional Wiener filtering method. The results demonstrate the efficacy of the spectrotemporal filtering approach in the conditions examined.
Year
DOI
Venue
2007
10.1155/2007/42357
EURASIP J. Audio, Speech and Music Processing
Keywords
Field
DocType
distinctive modulation pattern,multiscale representation,significant advantage,auditory system,noisy signal,contaminated speech signal,signal spectrogram,spectrotemporal modulation,noise suppression algorithm,objective test
Noise reduction,Wiener filter,Pattern recognition,Spectrogram,Computer science,Filter (signal processing),Auditory system,Speech recognition,Modulation,Artificial intelligence,Audio signal processing,Modulation (music)
Journal
Volume
Issue
ISSN
2007
3
1687-4722
Citations 
PageRank 
References 
13
0.90
8
Authors
2
Name
Order
Citations
PageRank
Nima Mesgarani125622.43
Shihab Shamma255467.25