On 05/26/2011 11:00 AM, Pierre Alexandre Tremblay wrote:
so what happens is you take the positions of the speakers you want
to simulate, and convolve each speaker signal with the appropriate
head-related transfer functions for the left and right ear.
Can I bring a concern here? I have compared different IRs of 5.1
setup with real, mastered 5.1 programme and the loss was very
significant, mainly in term of comb filtering type artifacts. So much
so that I decided not to include them on my album (this was for a 5.1
release which I wanted to have the stereo reduction to be binaural)
hmm. interesting. can you share a short snippet of the original 5.1 and
the binaural rendering, one that shows those artefacts?
I presume that if I had used Ambisonic as my spacialisation device
throughout the mix and composition, it would have worked better as a
re-rendering...
why should it? the virtual speaker approach is pretty much independent
of your speaker spatialisation technique.
*.*
btw, since nobody has mentioned it in this thread yet, there is the
soundscape renderer from tu berlin/telekom labs. it is available as
open-source code and has just seen a new release:
http://www.tu-berlin.de/?id=ssr
there's also a wealth of papers out there describing its workings and
applications in listening tests and other studies.
best,
jörn
--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT
http://stackingdwarves.net
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