acoustic coupler

English

Noun

acoustic coupler (plural acoustic couplers)

  1. An interface device for coupling electrical signals by acoustical means.
  2. (dated, telecommunications) A terminal device used to link data terminals and radio sets with the telephone network.
    Coordinate term: modem
    • 1984, Christine L. Borgman, Effective Online Searching: A Basic Text, CRC Press, →ISBN, page 52:
      The call will be answered with a high-pitched tone; no human voice will be heard. The phone receiver should be placed in the acoustic coupler, if one is used, with the cord in the proper position.

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