Stefan Schreiber wrote:
Andy Furniss wrote:
According to wikipedia DVD-Audio only does 5.1 - it could be wrong
of course.
The DVD-Video page claims 8ch PCM support is in the spec, but says
it's not well supported by players.
Starts with the interface problems. Today you would use HDMI and USB
for this. Not in any DVD specs...
Yea, though it does hold out some hope that a blu-ray player that does
dvds may support it and send 8xPCM over hdmi to a receiver.
AFAIK in practice 7.1 is a bluray thing.
Or you define a file format. (AAC and FLAC actually would support
7.1. This doesn't mean people are using such an option yet.
I read the OPs post as meaning he wanted to use a consumer player - if a
computer is an option then problem solved :-)
P.S.: BDs would support "Dolby/DTS" 7.1, which means discrete 7.1.
Certainly not anything like Ambisonics, so you would need in any case
a new format definition.
I think that PCM if possible would be the answer - I know there are open
encoders for the core AC3/DTS 5.1 codecs, but not the TrueHD/MA that 7.1
blu-ray use, I guess certified commercial encoders are not cheap.
Having had a look at the DTS spec (ETSI TS 102 114 v1.4.1) recently,
though there are many possible channel layouts in there, it may be that
blu-ray players only do 7.1 and in that case the .1 really is only for
LFE - it is not stored/decoded as a full range channel. I don't know
about TrueHD - the spec seems to be secret.
Nothing to do with this thread and I am not saying that any players use
it, but I did see the words Ambisonic and WXYZ in the spec, so there is
some provision for carrying and flagging as special b-format in a DTS
extension stream.
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