Title
Speech dereverberation for enhancement and recognition using dynamic features constrained deep neural networks and feature adaptation
Abstract
This paper investigates deep neural networks (DNN) based on nonlinear feature mapping and statistical linear feature adaptation approaches for reducing reverberation in speech signals. In the nonlinear feature mapping approach, DNN is trained from parallel clean/distorted speech corpus to map reverberant and noisy speech coefficients (such as log magnitude spectrum) to the underlying clean speech coefficients. The constraint imposed by dynamic features (i.e., the time derivatives of the speech coefficients) are used to enhance the smoothness of predicted coefficient trajectories in two ways. One is to obtain the enhanced speech coefficients with a least square estimation from the coefficients and dynamic features predicted by DNN. The other is to incorporate the constraint of dynamic features directly into the DNN training process using a sequential cost function.
Year
DOI
Venue
2016
10.1186/s13634-015-0300-4
EURASIP J. Adv. Sig. Proc.
Keywords
Field
DocType
Beamforming, Deep neural networks, Dynamic features, Feature adaptation, Robust speech recognition, Reverberation challenge, Speech enhancement
Speech corpus,Speech enhancement,Beamforming,Feature vector,Reverberation,Likelihood-ratio test,Pattern recognition,Computer science,Cepstrum,Speech recognition,Artificial intelligence,Distortion
Journal
Volume
Issue
ISSN
2016
1
1687-6180
Citations 
PageRank 
References 
9
0.55
26
Authors
5
Name
Order
Citations
PageRank
Xiong Xiao128134.97
Shengkui Zhao29312.25
Duc Hoang Ha Nguyen3111.94
Xionghu Zhong415214.61
Douglas L. Jones51193197.34