A zero-delay FFT-based subband acoustic echo canceller for teleconferencing and hands-free telephone systems

J. D.Z. Chen, Hugo Bes, Joos Vandewalle, Ingrid Evers, Paul Janssens

Research output: Contribution to journalArticlepeer-review

Abstract

A new structure of the subband acoustic echo canceller (AEC) is proposed. It introduces no delay in the transmission line. Using the new structure and a simplified weighted overlap-add method, an acoustic echo canceller is designed. The results showed that the designed system has good echo reduction and is stable in nonstationary environments. A hardware implementation of the proposed subband AEC is also presented in this brief.

Original languageEnglish (US)
Pages (from-to)713-717
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
Volume43
Issue number10
DOIs
StatePublished - Dec 1 1996
Externally publishedYes

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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