I agree that ATMOS delivery is more efficient, (stream size wise) but as mentioned, it isn't great for anything other than theatres, despite what Dolby and the rest of the bandwagon would like you to believe. There is no below after all. For non visual ATMOS delivery I purposely make separate static binaural mixes, that are derived from native ambisonic/SPS mixes (rather than the ATMOS binaural downmix). So when an ATMOS decoder isn't present, the native binaural mix is served up instead. These are generally preferred....(I also do my stereo mix from the original rather than an ATMOS downmix). And as for audio mastering of the object based delivery, you can't, so most separate stereo mixes i have heard sound better. If a spatial 'scene' delivery is required, then maybe just use SPS, as that should be more tolerant of compression ratios than Ambisonics..
Just my $0.01 Steven On Mon, 1 May 2023, 22:05 Fons Adriaensen, <f...@linuxaudio.org> wrote: > On Mon, May 01, 2023 at 06:03:09PM +0000, Thorsten Michels wrote: > > > If a lower order is streamed, the other channels will be left empty, with > > digital "0", meaning absolutely NO signal. So the decoders can recognize > it > > and provide the correct decoding. > > That is in-band signalling, and a bad idea for many reasons. > > > The order of the channels will be as follows: > > Why define speakers positions if the format is Ambisonic ? > It's up to the receiver to decode it, using whatever speaker > positions it has available. > > The speaker positions you propose would not even support > a full third order decode. > > Apart from that, high order ambisonics is not an efficient > delivery format. It's OK for up to 2nd order or so, maybe > 3rd, but above that an object based format (e.g. Atmos) > can provide much better performance for the same channel > count. > > Ciao, > > -- > FA > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20230502/541df563/attachment.htm> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
