Channels, surround & immersive audio · Working

Fold-down

ELI5

A version of a surround mix converted into fewer audio channels.

“Check the stereo fold-down before approving the surround mix.”

A mix derived from a larger channel format into fewer channels.

Here “Fold-down” means: A mix derived from a larger channel format into fewer channels.

You may encounter “Fold-down” in sound, music & voice conversations or materials.

Why it matters: Explains dialogue, effects, atmosphere, music, voice and the technical work of making them intelligible.

Sources & evidence · 4

Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.