5 ms·
It's for things like Dolby Atmos[1]. Instead of having to be stuck with a premixed 5 or 7 channel format designed for an ideal that your setup probably is not,
by ecopoesis 13y ago
It's for things like Dolby Atmos[1]. Instead of having to be stuck with a premixed 5 or 7 channel format designed for an ideal that your setup probably is not, you instead include unmixed sound and where it would ideally be coming from. The receiver then has knowledge of speaker and seating positions and dynamically mixes the output to match the room.
[1] http://www.dolby.com/us/en/professional/technology/cinema/dolby-atmos-video.html http://www.dolby.com/us/en/professional/technology/cinema/do...
- kibibu 13y agoInteresting that a "virtual speaker set" won over higher-order Ambisonics (representing incoming audio as spherical harmonics). I wonder if it just boils down to easier engineering.
- sp332 13y agoAmbisonics requires a lot of actual speakers to have a large (say, couch-sized) "sweet spot" where the directional audio sounds any good.
- ioquatix 13y agoReally? I've heard some pretty amazing demos of ambisonics even with just two speakers - things which completely blow away anything I hear through mainstream productions with 5.1 and 7.1
- sp332 13y agoBut don't you have to hold your head in a smallish area for all the spherical harmonics to add up properly?
- kibibu 13y agoI find this curious, as you should in theory be able to map your 30 speakers to SH coeffs if you are using high-enough order SH (although 4th degree SH needs 25 coefficients so I guess there's not enough savings)
- sp332 13y agoLike I said, that requires a lot of physical speakers, not just encoded data.