so I will go ahead and try. eight channels because it is easy to do with a motu 8pre. I can use a pair of Brahma PPAs and splitters to XLR. The microphone itself can output to a pair of 5-pin xlrs, unbalanced, to feed the PPA. I ordered 10 capsules. They are 18 mm outer diameter (probably a 15 mm capsule) and their lengths are 12 cm end to end. Doing an octahedron of supporting rings is easier to do than a tetra! umashankar
> Date: Thu, 16 Apr 2015 04:37:29 +0300 > From: [email protected] > To: [email protected] > Subject: Re: [Sursound] 8 channel microphone > > On 2015-04-15, Fons Adriaensen wrote: > > > But I see a more serious problem. Shotgun mics work by integrating > > pressure over their lenght. That means that the effective radius (the > > one that determines phase/time differences between capsule signals) > > will be around half the physical one. And that is rather large, it > > means that any linear A/B matrixing will start to break down around 2 > > kHz. > > Also, shotguns by design have lots of frequency dependent nulls in their > directional pattern, and the pattern itself is likely a mixture of lots > of spherical harmonics of varying, high order, probably with directional > aliasing already folded in for good measure. I would imagine it to be > rather difficult to invert the resulting system into something well > behaved. > > > Anyway, how to calibrate such a thing and get the best out of it is > > difficult to say without first studying a set of measurements. > > Agreed. Never say never. > -- > Sampo Syreeni, aka decoy - [email protected], http://decoy.iki.fi/front > +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 > _______________________________________________ > Sursound mailing list > [email protected] > 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/20150416/38809ecc/attachment.html> _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
