• DocumentCode
    1018424
  • Title

    Adaptive filters to improve loudspeaker telephone

  • Author

    South, C.R. ; Hoppitt, C.E. ; Lewis, A.V.

  • Author_Institution
    Post Office Research Centre, Ipswich, UK
  • Volume
    15
  • Issue
    21
  • fYear
    1979
  • Firstpage
    673
  • Lastpage
    674
  • Abstract
    A loudspeaking telephone is under development which uses two adaptive filters to cancel acoustic and electric coupling in an open-loop or shallow voice-switched system. Measurements indicate that between 15 and 30 dB of echo cancellation is available for a range of conditions.
  • Keywords
    filters; loudspeakers; telephone sets; acoustic coupling; adaptive filters; echo cancellation; electric coupling; loudspeaking telephone; open loop system; shallow voice switched system;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19790478
  • Filename
    4256096
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1018424