quadraphony
/ˌkwɑdrəˈfoʊni/
noun
- A system of sound recording and reproduction that uses four separate audio channels to create a more immersive, surround-sound effect.
- Some audiophiles still prefer quadraphony over modern surround sound for its unique warmth.
- Quadraphony was popular in the 1970s for high-end music albums.
- The concert was recorded in quadraphony to give listeners a feeling of being in the hall.