quadriphonics

[kwod-ruh-fon-iks] /ˌkwɒd rəˈfɒn ɪks/
noun, (used with a singular verb)
1.
quadraphony.
Also called quadrisonics
[kwod-ruh-son-iks] /ˌkwɒd rəˈsɒn ɪks/ (Show IPA).
Origin
see quadraphonic, -ics