Richard Lee wrote:
If anyone has recordings of any of this Matrix H, HJ, UHJ stuff, please
post a copy on
http://ambisonia.com/
with a good description of what it is and the circumstances.
I don't think UHJ is dead yet as the biggest present market for music is 2
channel stuff for headphones and UHJ gives excellent results for this and
other playback methods too.
Even if I basically agree with this view, I would like to add just a
few comments:
- If the listener doesn't use some decoder, UHJ is listened to as <
stereo >. (You are delivering surround sound, but the listener actually
doesn't notice.)
- If you already use some binaural decoder, you could apply some
3/4-channel Ambisonics to binaural decoder anyway.
- Backward-compatible (to stereo) forms of Ambisonics are very probably
possible. I have proposed this idea some time ago. (At 1st order the
proposal is based on 3/4 channel UHJ, so on some LR-TQ channel "stereo
core + extension" scheme. This concept could probably be extended to
HOA, as well.)
Isn't it a bit late for 2-channel UHJ decoders anyway? Some radio
broadcaster already could try to apply some < multiformat > surround to
binaural decoders on the "customer" side. 5.1 and Ambisonics
should/could be both supported, and maybe more formats. (If format wars
are not necessary from a modern perspective, we should not try to
continue some partially imagined conflict. Ambisonics has some clear
advantages in the areas of AR/VR and 360º video. So some natural
application cases finally exist.)
Even HTML5 surround decoders are possible by now:
http://hyperradio.radiofrance.fr/son-3d/
(NouvOson, 5.1)
Marc Lavallée presented one online player/decoder for XYW recordings.
Now somebody would "just" have to do some integration.
Audio objects:
http://lab.irt.de/demos/taar/360/
https://github.com/IRT-Open-Source/bogJS
https://orpheus-audio.eu/project-summary/
funding from the European Commission under the Horizon 2020 programme
(
ORPHEUS will deliver a sustainable solution, ensuring that workflows
and components for object-based audio scale up to enable
cost-effective commercial production, storage, re-purposing, play-out
and distribution.
"sustainable cost-effective commercial" bla bla bla bla bla bla.)
----------
Of course they could (or should?) start to implement 5.1 and Ambisonics
decoders firstly. But < who > would fund < this > stuff?! (Too
obvious, too little research or say development effort needed. )
"Wait until 2020. All will be good by then." (It is also some
classical Ircam strategy to point to the benefits of the < next
generation >. We never will be < there > , but never mind! :-D )
So: We don't have to be < too > conservative. (We also don't have to
wait 'til "2020" to start with something.)
Best regards,
Stefan
P.S.: And quadraphonic formats are maybe interesting - but quite
obviously surround history. Some recordings still exist, but there won't
be anything recent or new "stuff" around.
"Alice's Adventures In (3D Audio?) Wonderland".
I can remember listening to this play on BBC Radio 3/4 several times,
great
stuff.
There is also some even more jurassic book around... :-X
---------------------------------------
I still have some off-air recordings of the BBC's Matrix H system. Never
tried to decode them but they have a pleasing surround sensation when
listened to on headphones. Must have been the mic. placements ??
One broadcast I recall was a play based upon Alice in Wonderland entitled
"Alice's Adventures In Wonderland".
I can remember listening to this play on BBC Radio 3/4 several times,
great
stuff.
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