Combining acoustic echo cancellation and adaptive beamforming for achieving robust speech interface in mobile robot

Jounghoon Beh, Taekjin Lee, Inho Lee, Hyunsoo Kim, Sungjoo Ahn, Hanseok Ko

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

4 Citations (Scopus)

Abstract

This paper proposes a combined scheme in which adaptive beamforming and acoustic echo canceller are integrated in order to achieve a robust full-duplex speech interface between user and mobile robot. In particular, this paper addresses the situation in which an echo signal and the user's voice are propagated from the same direction toward a linear array of microphones. We propose a cascading scheme that uses an acoustic echo canceller followed by an adaptive beamformer. By using the system output to adapt echo canceller, and by controlling the adaptive mode of each adaptive filter in the beamformer and in the echo canceller, we can recover the original speech, which would otherwise have remained contaminated by both noise and echoes. In addition, a double-talk detector is proposed so that effective acoustic echo cancellation may be attained without generating error divergence when the user's voice and the echo are present simultaneously. Representative experimental results with real data demonstrate the validity of the proposed scheme.

Original languageEnglish
Title of host publication2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS
Pages1693-1698
Number of pages6
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS - Nice, France
Duration: 2008 Sep 222008 Sep 26

Other

Other2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS
CountryFrance
CityNice
Period08/9/2208/9/26

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ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Vision and Pattern Recognition
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Beh, J., Lee, T., Lee, I., Kim, H., Ahn, S., & Ko, H. (2008). Combining acoustic echo cancellation and adaptive beamforming for achieving robust speech interface in mobile robot. In 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS (pp. 1693-1698). [4650897] https://doi.org/10.1109/IROS.2008.4650897