Algorithms for alignment of co-channel speech signals in adaptive speech separation
Date
2007
Authors
Cox, N.J.
Page, C.J.
Petrescu, R.F.
Aziz, S.M.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Proceedings of ICICT 2007, 2007, iss.4261422, pp.307-310
Statement of Responsibility
Conference Name
2007 International Conference on Information and Communication Technologies (ICICT 2007) (7 Mar 2007 - 9 Mar 2007 : Bangladesh)
Abstract
This paper presents preprocessing algorithms for reducing misalignment of co-channel speech signals in order to improve the accuracy of adaptive speech separation. The use of Adaptive Decorrelation Filtering as a front end processor in speech recognition systems improve performance when the input signals from the two channels are synchronized. However the performance of ADF is degraded when the co-channel signals are misaligned. We address this problem by proposing a pre-processor to the ADF with a view to align the co-channel signals. We have implemented two different algorithms for synchronizing the co-channel speech signals using cross-correlation. These algorithms improve the performance of speech recognition.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright 2007 IEEE