Systematic integration of acoustic echo canceller and noise reduction modules for voice communication systems

Hyeonjoo Kang, Jeesok Lee, Soonho Baek, Hong Goo Kang

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper proposes an efficient way of integrating acoustic echo canceller (AEC) and background noise reduction (NR) modules for voice communication systems. The main strategy for designing a standalone AEC or NR module is straightfor- ward, but it is not easy to integrate two modules in a single system because of the undesired effect caused by the nonlinear nature of each module's output. The proposed algorithm di- rectly estimates noise and echo components from the observed signal, then they are utilized in the process of updating AEC module. Since the estimation step is independent of the ac- tual processing of NR module, the nonlinear effect caused by coupling the NR module with the AEC module can be mini- mized. Experimental results show that the proposed algorithm achieves the performance of standalone AEC in terms of echo- return-loss-enhancement (ERLE) metric while maintaining that of standalone NR module in the spectral distortion aspect.

Original languageEnglish
Pages (from-to)1770-1774
Number of pages5
JournalProceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
Volume2015-January
Publication statusPublished - 2015
Event16th Annual Conference of the International Speech Communication Association, INTERSPEECH 2015 - Dresden, Germany
Duration: 2015 Sep 62015 Sep 10

Bibliographical note

Publisher Copyright:
Copyright © 2015 ISCA.

All Science Journal Classification (ASJC) codes

  • Language and Linguistics
  • Human-Computer Interaction
  • Signal Processing
  • Software
  • Modelling and Simulation

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