NDLI: Joint detection and estimation of speech spectral amplitude using noncontinuous gain functions

Content Provider	ACM Digital Library
Author	Abutalebi, Hamid Reza Momeni, Hajar Tadaion, Aliakbar
Copyright Year	2016
Abstract	This paper addresses the joint detection and estimation approach for single-channel speech enhancement. In this approach, a detector decides on speech presence in each time-frequency unit and an estimator estimates the corresponding speech spectral amplitude. We utilize the concept of binary/continuous gain functions to study and extend the process of joint detection and estimation. The binary gains (BGs) have already shown an inferior performance compared to the continuous gains (CGs). In this paper, we propose a simultaneous detection and estimation (SDE) method where the detector structure is derived by the knowledge of the estimator. The proposed SDE method is a combination of Bayesian and Neyman-Pearson approaches and is expressed as a noncontinuous gain (NCG). It is expected that employing a superior detector, the proposed NCG improves the quality of the output speech. We concentrate on the derivation of the detector so that it minimizes the error caused by missed detection and/or wrong estimation of speech coefficients at a controlled level of falsely detecting high-energy noise as speech. Furthermore, an independent detection and estimation technique is proposed where the detector and the estimator are extracted in an independent manner. Simulation results demonstrate that the proposed SDE method minimizes the speech distortion at a controlled level of noise reduction. It is also shown that the performance of the proposed NCG is better than the CG and than the existing BGs in both noise reduction and speech distortion aspects.
Starting Page	1249
Ending Page	1258
Page Count	10
File Format	PDF
ISSN	23299290
e-ISSN	23299304
DOI	10.1109/TASLP.2015.2427522
Volume Number	23
Issue Number	8
Journal	IEEE/ACM Transactions on Audio, Speech and Language Processing (TASLP)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2015-08-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Joint detection and estimation Spectral amplitude estimation Speech detection Speech enhancement
Content Type	Text
Resource Type	Article
Subject	Instrumentation Computational Mathematics Signal Processing Electrical and Electronic Engineering Acoustics and Ultrasonics Speech and Hearing Media Technology

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