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2nd order ambisonic

 

I recently found the Ambi Alice project and I was wondering if it could be adapted with a ?8 capsule mount for 2nd order ambisonic
 

Jules devised the AmbiAlice for his Instructable so he can advise, but I suppose since his design uses the "Simple P48" circuit, I suppose you could use 8 conductor tube microphone cable, maybe? You would never be able to fit all those resistors and capacitors into an XLR though so you would have to make a little break out box. Also of course you would have to design your own capsule holder to hold the 8 capsules in whatever configuration they are for 2nd order ambisonics. Pretty much entirely new design from the ground up!
On a side note, I inquired here recently about utilizing dual diaphragm LDC capsules into some form of LDC ambisonic microphone. Maybe you can get 2nd order ambisonic with 4 capsules?
 

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You could easily extend this to 8 capsules ? You would need to redo the design for the capsule mounts ? I would probably go to 16mm capsules if I were to do that to keep them closer.?
Best Regards,

Jules Ryckebusch?

On Mar 4, 2024, at 09:36, Mark Day <neowalla@...> wrote:

?Jules devised the AmbiAlice for his Instructable so he can advise, but I suppose since his design uses the "Simple P48" circuit, I suppose you could use 8 conductor tube microphone cable, maybe? You would never be able to fit all those resistors and capacitors into an XLR though so you would have to make a little break out box. Also of course you would have to design your own capsule holder to hold the 8 capsules in whatever configuration they are for 2nd order ambisonics. Pretty much entirely new design from the ground up!
On a side note, I inquired here recently about utilizing dual diaphragm LDC capsules into some form of LDC ambisonic microphone. Maybe you can get 2nd order ambisonic with 4 capsules?

 

Thank you, what is the geometric position of the 8 capsules ? are they still based on a tetrahedron ?
 

They mostly are. Check out several of the commercial ones for ideas. Interestingly, 8 capsules?is not quite 2nd order, in theory you need 9. Whatever geometry you end up with. The Sparta Arrary2SH?plugin lets you assign the altitude and azimuth?of the capsules to the encoder.?

Jules

On Tue, Mar 5, 2024 at 7:57?AM francois via <fxblaignan=[email protected]> wrote:
Thank you, what is the geometric position of the 8 capsules ? are they still based on a tetrahedron ?



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Best Regards,

Jules Ryckebusch

214 399 0931
 

What you've downloaded is not an .scad file. It has an html header!



Am Fr., 8. M?rz 2024 um 22:06?Uhr schrieb francois via <fxblaignan=[email protected]>:

The file downloaded from?CCRMA?gives me a parsing error do you know if there is a way to correct it

 

Thank you, I got it working

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