Artificial intelligent assistant

stereophony

stereophony
  (stɛriː-, stɪəriːˈɒfənɪ)
  [f. as prec.: see -y3.]
  Stereophonic reproduction; stereophonic sound.

1950 Wireless World Sept. 327/1 The first broadcast of stereophony, the system in which sources of sound are restored to their relative positions in space, took place in France on June 19th, 1950. 1958 Manch. Guardian 30 June 5/3 Even on monaural discs the equipment..gives a remarkable impression of stereophony. 1972 Daily Tel. 31 Jan. 7/5 The BBC started experiments with stereophony in 1926.

Oxford English Dictionary

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