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Spat

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User group for Spat, panoramix, ToscA , and ADMix

Ambisonic Decoding for non-spherical speaker array?

Author 3 Subscribed Users |
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attackrelease

Hello.

I am wondering what the best approach is for decoding 3rd-order ambisonics to a non-spherical speaker setup.

for the HOA Decoder settings, is there more information where i can read about how to determine what method, optimization, and normalization i should be using for different circumstances?

Thank you.

June 18, 2018 at 18:06 #26794
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T.

Hi,

Short answer : the default and recommended method is the “energy-preserving decoder”.

I have gathered more infos in the attached patcher.
I will try to progressively improve the documentation. (but HOA decoder is a complex topic…)

All the best,
T.

— Pasted Max Patch, click to expand. —
June 19, 2018 at 19:18 #26800
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attackrelease

This is incredibly helpful Thibaut, thank you for putting it together.

I’m going to digest and do some tests now.

best,

//Gabe

(really appreciated your talk in Montreal at SAT a few weeks ago btw, was wonderful to hear you demo the techniques in that space)

June 19, 2018 at 19:41 #26801
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Sherk SCOTT

Silly question, but why has the “pasted Max Patch, click to expand” lost its link? I’d love to see this additional info and other links that seem to have been lost on this forum.
Thanks,
Scott

August 30, 2018 at 17:13 #27575
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T.

Hi Scott,

This seems to be a Flash Player issue.
On my computer, links are broken on Safari, but work with Firefox (after updating Flash Player).
NB : “copy to clipboard” works, but not “click to expand”.

Anyway, I’ll forward to our web dev team.

Best,
T.

August 31, 2018 at 11:46 #27585
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Sherk SCOTT

Thanks! Good to know– “copy to clipboard” does work on Firefox.

August 31, 2018 at 15:42 #27588

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