Dan Andrew > whats the catch? I'm not sure that there is a catch, as such.
It's apparent that the Brahma is an 'A-format' microphone, in which it is the capsule signals that are recorded and not the Ambisonic B-format. To get B-format will require some matrix processing (sum and difference of capsule signals), and some equalization to restore flat frequency response. Not only that, but the microphone array appears to be made up of omnidirectional signals which means that the difference signals (B-format X, Y, and Z) will need to have the low frequencies boosted substantially to give any semblance of flat frequency response. Perhaps the Oomagamma folks can supply some commentary, and much better than that, perhaps they can supply some A-format demonstration files. ----- Original Message ---- From: Dan Andrews <d...@db-av.co.uk> To: Surround Sound discussion group <sursound@music.vt.edu> Sent: Mon, July 11, 2011 4:36:34 AM Subject: [Sursound] Opinions on the Brahma soundfield mic kit Im looking to buy a mic for b-format recording and wondered if anyone on the mailing list has had any experience with Brahma soundfield mic kit? http://www.oomagamma.com/brahma_kit/brahma_kit.html This kit includes the mic, a modified 4ch Zoom 24/96 recorder, cables, a shockmount, 2 wind shields and a wooden case to put it all in, all for 729 euro!!!! This all seems far to good to be true, whats the catch? All the best Dan -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110711/42815fb6/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
