The performance of the acoustic echo cancelation using blind source separation to reduce double-talk interference

Yoshihiro Sakai, Muhammad Tahir Akhtar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

An acoustic echo canceler (AEC) is often employed to remove the acoustic echoes generated in hands-free communication systems. The AEC cancels the acoustic echoes by approximating the echo-path with the use of an adaptive filter and subtracting the pseudo echoes generated by the filter from the observed signal. The conventional adaptive algorithm for updating the filter, however, fails in estimation of the echo-path during double-talk when both the acoustic echo and the near-end speech are observed. Recently it has been shown that the blind source separation (BSS) can be employed to perform the echo cancelation during the double-talk; however, the convergence speed is slower than that of the conventional method. In this paper, a system is proposed that combines the conventional AEC and BSS; essentially, BSS is employed as a preprocessor for the adaptive filter performing the echo cancelation. Simulation results show that the proposed system is effective for the echo-path estimation during the double-talk as well as during variation in the echo path.

Original languageEnglish
Title of host publicationISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems
Pages61-66
Number of pages6
DOIs
Publication statusPublished - Dec 1 2013
Externally publishedYes
Event2013 21st International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2013 - Naha, Okinawa, Japan
Duration: Nov 12 2013Nov 15 2013

Conference

Conference2013 21st International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2013
CountryJapan
CityNaha, Okinawa
Period11/12/1311/15/13

Fingerprint

Echo suppression
Blind source separation
Acoustics
Adaptive filters
Adaptive algorithms
Communication systems

ASJC Scopus subject areas

  • Artificial Intelligence
  • Signal Processing

Cite this

Sakai, Y., & Akhtar, M. T. (2013). The performance of the acoustic echo cancelation using blind source separation to reduce double-talk interference. In ISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems (pp. 61-66). [6704523] https://doi.org/10.1109/ISPACS.2013.6704523

The performance of the acoustic echo cancelation using blind source separation to reduce double-talk interference. / Sakai, Yoshihiro; Akhtar, Muhammad Tahir.

ISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems. 2013. p. 61-66 6704523.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sakai, Y & Akhtar, MT 2013, The performance of the acoustic echo cancelation using blind source separation to reduce double-talk interference. in ISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems., 6704523, pp. 61-66, 2013 21st International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2013, Naha, Okinawa, Japan, 11/12/13. https://doi.org/10.1109/ISPACS.2013.6704523
Sakai Y, Akhtar MT. The performance of the acoustic echo cancelation using blind source separation to reduce double-talk interference. In ISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems. 2013. p. 61-66. 6704523 https://doi.org/10.1109/ISPACS.2013.6704523
Sakai, Yoshihiro ; Akhtar, Muhammad Tahir. / The performance of the acoustic echo cancelation using blind source separation to reduce double-talk interference. ISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems. 2013. pp. 61-66
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