Show simple item record

dc.contributor.authorYong, Pei Chee
dc.contributor.authorNordholm, Sven
dc.contributor.authorDam, Hai Huyen Heidi
dc.identifier.citationYong, P. and Nordholm, S. and Dam, H. 2014. Effective Binaural Multi-Channel Processing Algorithm for Improved Environmental Presence. IEEE/ACM Transactions on Audio, Speech, and Language Processing. 22 (12): pp. 2012-2024.

Binaural noise-reduction algorithms based on multi-channel Wiener filter (MWF) are promising techniques to be used in binaural assistive listening devices. The real-time implementation of the existing binaural MWF methods, however, involves challenges to increase the amount of noise reduction without imposing speech distortion, and at the same time preserving the binaural cues of both speech and noise components. Although significant efforts have been made in the literature, most developed methods so far have focused only on either the former or latter problem. This paper proposes an alternative binaural MWF algorithm that incorporates the non-stationarity of the signal components into the framework. The main objective is to design an algorithm that would be able to select the sources that are present in the environment. To achieve this, a modified speech presence probability (SPP) and a single-channel speech enhancement algorithm are utilized in the formulation. The resulting optimal filter also avoids the poor estimation of the second-order clean speech statistics, which is normally done by simple subtraction. Theoretical analysis and performance evaluation using realistic recorded data shows the advantage of the proposed method over the reference MWF solution in terms of the binaural cues preservation, as well as the noise reduction and speech distortion.

dc.publisherInstitute of Electrical and Electronics Engineers
dc.subjectBinaural cues
dc.subjectspeech enhancement
dc.subjectmodified sigmoid function
dc.subjectmultichannel wiener filter
dc.subjectsingle-channel noise reduction
dc.titleEffective Binaural Multi-Channel Processing Algorithm for Improved Environmental Presence
dc.typeJournal Article
dcterms.source.titleIEEE/ACM Transactions on audio, speech, and language processing

Copyright © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

curtin.departmentDepartment of Electrical and Computer Engineering
curtin.accessStatusOpen access

Files in this item


This item appears in the following Collection(s)

Show simple item record