Traditional multichannel surround formats — 5.1, 7.1 — where each track maps to a fixed speaker position.
Channel-based audio assigns each audio track to a specific loudspeaker. The most common format is 5.1 surround (L, C, R, Ls, Rs, LFE) — the de facto standard for fulldome delivery worldwide.
5.1 provides no height information — a significant gap in a hemispherical venue. Tom Ammermann suggests adding 4 height speakers to any 5.1 system (creating 5.1.4) as a cost-effective spatial upgrade.
See also: Spatial Audio → · Object-Based Audio → · Ambisonics →
← Back to Glossary