Simultaneous Channel Estimation and Joint Time-Frequency Domain Crosstalk Cancellation in Multichannel Personal Audio Systems

Harsh Tataria, Paul D. Teal, Mark A. Poletti, Terence Betlehem

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

In this paper, we present two important contributions. The first is demonstration of the use of subliminal levels of pseudo-random noise to enhance channel estimation, and the second is a joint time and frequency domain algorithm for multichannel inversion. An adaptive system is presented where the acoustic channel is accurately estimated and utilized. In this implementation, maximum length sequences in the form of pseudo-random noise are superimposed on the source signals to aid the estimation quality of the acoustic channels. Upon estimation, crosstalk cancellation filters are designed using a time and frequency domain technique which uses a window to achieve more efficient and effective cancellation of crosstalk. For a 3×2 crosstalk system, the presented results show the improvement in channel estimation quality when low levels of maximum length sequences are superimposed on the source signals. On average -25dB of crosstalk cancellation is achieved.
Original languageEnglish
Title of host publication2014 IEEE Workshop on Statistical Signal Processing (SSP)
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages488-491
Number of pages4
ISBN (Print)978-1-4799-4975-5
DOIs
Publication statusPublished - 2014 Jun 29
Externally publishedYes
Event2014 IEEE International Workshop on Statistical Signal Processing - Gold Coast, Australia
Duration: 2014 Jun 292014 Jul 2

Workshop

Workshop2014 IEEE International Workshop on Statistical Signal Processing
Abbreviated titleSSP
Country/TerritoryAustralia
CityGold Coast
Period2014/06/292014/07/02

Subject classification (UKÄ)

  • Communication Systems

Free keywords

  • Channel estimation
  • Crosstalk cancellation
  • Personal audio systems

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