• DocumentCode
    1480033
  • Title

    Higher-order time-varying allpass filters for signal decorrelation in stereophonic acoustic echo cancellation

  • Author

    Tangsangiumvisai, N. ; Chambers, J.A. ; Constantinides, A.G.

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
  • Volume
    35
  • Issue
    1
  • fYear
    1999
  • fDate
    1/7/1999 12:00:00 AM
  • Firstpage
    88
  • Lastpage
    90
  • Abstract
    A new technique is presented for decorrelating the input signals in stereophonic systems by means of time-varying allpass filters. The controllable and almost linear phase response of higher-order allpass filters is exploited in this context and a particular type of time variation is used to vary the parameters of such filters. Simulation results are presented based on real stereophonic signals and supported by subjective listening tests
  • Keywords
    all-pass filters; audio signal processing; decorrelation; echo suppression; time-varying filters; higher-order time-varying allpass filters; linear phase response; signal decorrelation; stereophonic acoustic echo cancellation; subjective listening tests; time variation;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19990036
  • Filename
    749242
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1480033