Optimizaton and evaluation of sigmoid function with a priori SNR estimate for real-time speech enhancement

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Optimizaton and evaluation of sigmoid function with a priori SNR estimate for real-time speech enhancement

In this paper, an a priori signal-to-noise ratio (SNR) estimator with a modified sigmoid gain function is proposed for real-time speech enhancement. The proposed sigmoid gain function has three parameters, which can be optimized such that they match conventional gain functions. In addition, the join...

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Bibliographic Details
Main Authors:	Yong, Pei, Nordholm, Sven, Dam, Hai
Format:	Journal Article
Published:	Elsevier 2013
Subjects:	Speech enhancement Sigmoid function Decision-directed approach SNR estimation Objective evaluation
Online Access:	http://hdl.handle.net/20.500.11937/34679

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