Integrated echo and noise canceler for hands-free applications

Seon Joon Park, Chom Gun Cho, Chungyong Lee, Dae Hee Youn

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

An integrated acoustic echo and noise canceler is proposed for hands-free telephony Applications. The proposed system includes a computationally efficient double-talk detection (DTD) method and a residual echo cancellation algorithm. The DTD method uses two cross-correlation coefficients and is robust in adverse conditions. In the residual echo cancellation approach, a linear prediction error filter removes the short-term correlation of the residual echo and the resulting whitened residual echo is canceled by a noise-reduction filter. The proposed system was implemented using a general purpose digital signal processor (DSP) with 16-b arithmetic.

Original languageEnglish
Pages (from-to)188-195
Number of pages8
JournalIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
Volume49
Issue number3
DOIs
Publication statusPublished - 2002 Jan 1

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Echo suppression
Acoustic noise
Digital signal processors
Noise abatement
Acoustics

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

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Integrated echo and noise canceler for hands-free applications. / Park, Seon Joon; Cho, Chom Gun; Lee, Chungyong; Youn, Dae Hee.

In: IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Vol. 49, No. 3, 01.01.2002, p. 188-195.

Research output: Contribution to journalArticle

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