quadraphony

[ kwo-draf-uh-nee ]
/ kwɒˈdræf ə ni /

noun

high-fidelity sound reproduction involving signals transmitted through four different channels.
Also called quad·ra·phon·ics [kwod-ruh-fon-iks] /ˌkwɒd rəˈfɒn ɪks/, quadriphonics, quad·ra·son·ics [kwod-ruh-son-iks] /ˌkwɒd rəˈsɒn ɪks/, quadrisonics.

Origin of quadraphony

1965–70; quadra-, variant of quadri- + -phony

British Dictionary definitions for quadraphonics

quadraphonics

quadrophonics

/ (ˌkwɒdrəˈfɒnɪks) /

noun

(functioning as singular) a system of sound recording and reproduction that uses four independent loudspeakers to give directional sources of sound. The speakers are fed by four separate amplified signals

Derived forms of quadraphonics

quadraphonic or quadrophonic, adjective quadraphony or quadrophony (kwɒdˈrɒfənɪ), noun