acoustic coupler

a·cous·tic cou·pler
A a


    • US Pronunciation
    • US IPA
    • [uh-koo-stik kuhp-ler]
    • /əˈku stɪk ˈkʌp lər/
    • US Pronunciation
    • US IPA
    • [uh-koo-stik kuhp-ler]
    • /əˈku stɪk ˈkʌp lər/

Definitions of acoustic coupler words

  • noun acoustic coupler a device converting computer-data signals into acoustic form for transmission down a telephone line, through the handset microphone 3
  • noun acoustic coupler a modem designed to connect a telephone handset to a computer terminal or processor. 1
  • noun Technical meaning of acoustic coupler (hardware, communications)   A device used to connect a modem to a telephone line via an ordinary handset. The acoustic coupler converts electrical signals from the modem to sound via a loudspeaker, against which the mouthpiece of a telephone handset is placed. The earpiece is placed against a microphone which converts sound to electrical signals which return to the modem. The handset is inserted into a sound-proof box containing the louspeaker and microphone to avoid interference from ambient noise. Acousitic couplers are now rarely used since most modems have a direct electrical connection to the telephone line. This avoids the signal degradation caused by conversion to and from audio. Direct connection is not always possible, and was actually illegal in the United Kingdom before British Telecom was privatised. BT's predecessor, the General Post Office, did not allow subscribers to connect their own equipment to the telephone line. 1
  • noun acoustic coupler An interface device for coupling electrical signals by acoustical means — usually into and out of a telephone instrument. 0
  • noun acoustic coupler A terminal device used to link data terminals and radio sets with the telephone network. 0

Information block about the term

Origin of acoustic coupler

First appearance:

before 1965
One of the 2% newest English words
First recorded in 1965-70

Historical Comparancy

Parts of speech for Acoustic coupler


acoustic coupler popularity

This term is known only to a narrow circle of people with rare knowledge. Only 3% of English native speakers know the meaning of this word.
According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

acoustic coupler usage trend in Literature

This diagram is provided by Google Ngram Viewer

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