Performance evaluation of a modified subband noise cancellation system in a noisy environment

Ali O. Abid Noor, Salina Abdul Samad, Aini Hussain

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

Abstract

This paper presents a subband noise canceller with reduced residual noise. The canceller is developed by modifying and optimizing an existing multirate filter bank that is used to improve the performance of a conventional full-band adaptive filtering. The proposed system is aimed to overcome problems of slow asymptotic convergence and high residual noise incorporating with the use of oversampled filter banks for acoustic noise cancellation applications. Analysis and synthesis filters are optimized for minimum amplitude distortion. The proposed scheme offers a simplified structure that without employing cross adaptive filters or stop band filters reduces the effect of coloured components near the band edges in the frequency response of the analysis filters. Issues of increasing convergence speed and decreasing the residual noise at the system output are addressed. Performance under white and coloured environments is evaluated in terms of mean square error MSE performance. Fast initial convergence was obtained with this modification. Also a decrease in the amount of residual noise by approximately 10dB compared to an equivalent subband model without modification was reachable under actual speech and background noise.

Original languageEnglish
Title of host publicationICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics, Proceedings
Pages238-243
Number of pages6
Volume3 SPSMC
Publication statusPublished - 2009
EventICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics - Milan
Duration: 2 Jul 20095 Jul 2009

Other

OtherICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics
CityMilan
Period2/7/095/7/09

Fingerprint

Filter banks
Adaptive filtering
Adaptive filters
Acoustic noise
Mean square error
Frequency response

Keywords

  • Adaptive filtering
  • Filter banks
  • Noise cancellation

ASJC Scopus subject areas

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

Cite this

Abid Noor, A. O., Abdul Samad, S., & Hussain, A. (2009). Performance evaluation of a modified subband noise cancellation system in a noisy environment. In ICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics, Proceedings (Vol. 3 SPSMC, pp. 238-243)

Performance evaluation of a modified subband noise cancellation system in a noisy environment. / Abid Noor, Ali O.; Abdul Samad, Salina; Hussain, Aini.

ICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics, Proceedings. Vol. 3 SPSMC 2009. p. 238-243.

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

Abid Noor, AO, Abdul Samad, S & Hussain, A 2009, Performance evaluation of a modified subband noise cancellation system in a noisy environment. in ICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics, Proceedings. vol. 3 SPSMC, pp. 238-243, ICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics, Milan, 2/7/09.
Abid Noor AO, Abdul Samad S, Hussain A. Performance evaluation of a modified subband noise cancellation system in a noisy environment. In ICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics, Proceedings. Vol. 3 SPSMC. 2009. p. 238-243
Abid Noor, Ali O. ; Abdul Samad, Salina ; Hussain, Aini. / Performance evaluation of a modified subband noise cancellation system in a noisy environment. ICINCO 2009 - 6th International Conference on Informatics in Control, Automation and Robotics, Proceedings. Vol. 3 SPSMC 2009. pp. 238-243
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