If the bluray spec only supports up to 7.1, why are we seeing receivers with 11.2 outputs? Are those just matrixed channels with some reverb thrown in? I'll be thinking about this for my ambisonics setup.
On Mon, Dec 16, 2013 at 1:14 PM, Andy Furniss <[email protected]> wrote: > 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. > > > > > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound > -- Bearcat M. Şándor Feline Soul Systems LLC Voice: 872.CAT.SOUL (872.228.7685) Fax: 406.235.7070 Jabber/xmpp/gtalk/email: [email protected] MSN: [email protected] Yahoo: bearcatsandor AIM: bearcatmsandor My public pgp key is included for verification of my identity -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20131216/8d2e51d4/attachment.html> _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
