[kwod-ruh-fon-ik] /ˌkwɒd rəˈfɒn ɪk/
of, noting, or pertaining to the recording and reproduction of sound over four separate transmission or direct reproduction channels instead of the customary two of the stereo system:
a quadraphonic recording.
1969, irregular formation from quadri- “four” + phonic, from Greek phone “sound, voice” (see fame (n.)). The goal was to reproduce front-to-back sound distribution in addition to side-to-side stereo. The later term for the same idea, surround sound, is preferable to this.
[kwo-draf-uh-nee] /kwɒˈdræf ə ni/ noun 1. high-fidelity sound reproduction involving signals transmitted through four different channels. /ˌkwɒdrəˈfɒnɪks/ noun 1. (functioning as sing) 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
[kwod-ruh-plee-jik, -plej-ik] /ˌkwɒd rəˈpli dʒɪk, -ˈplɛdʒ ɪk/ adjective 1. .
[kwo-draf-uh-nee] /kwɒˈdræf ə ni/ noun 1. high-fidelity sound reproduction involving signals transmitted through four different channels.
[kwod-ruh t] /ˈkwɒd rət/ noun 1. Printing. 2 (def 1). 2. Ecology. a square or rectangular plot of land marked off for the study of plants and animals. /ˈkwɒdrət/ noun 1. (ecology) an area of vegetation, often one square metre, marked out for study of the plants in the surrounding area 2. the frame used […]