quadriphonics
/ˌkwɑdrəˈfɑnɪks/
noun
- The technology or field of sound recording and reproduction using four separate channels.
- Quadriphonics was a popular innovation in audio technology during the 1970s.
- The engineer specialized in quadriphonics and helped design early surround-sound systems.
- Many modern home theater systems owe a debt to the experiments in quadriphonics.