IPA: /ˌkwɒdrəˈfɒnɪk/
KK: /kwɑːdrəˈfɒnɪk/
Relating to a sound system that uses four separate channels to create audio, allowing for a more immersive listening experience by placing speakers in different corners of a room.
The concert was recorded in quadraphonic sound, making the music feel like it surrounded the audience.
Quadraphonic → It is formed from "quadra-" (from Latin "quattuor", meaning four) and "phonic" (from Greek "phonē", meaning sound). The word describes a sound system that uses four channels to create audio, thus relating to the concept of four sounds.
Think of 'four' ('quadra-') sounds ('phonic') working together to create a rich audio experience.