umashankar manthravadi wrote:
My eight channel microphone is meant to be 2nd order with height. I
know that needs nine channels but angelo farina has told me it will
be possible to create a filter matrix so the 8channels of A format can
be processed into 9 channels of B format.
Sounds like an underspecified solution, but it could work quite well.
The reason for eight channels was of course recorder availability. F8
can do 10 channels if you connect an adaptor but I am not sure those
two channels will be an exact match for the other eight channels. And
A-D convertors like the MOTU 8pre are only 8 channels.
For a future and "full" solution, I would consider to:
- implement A-D conversion and A to B format conversion close to the mike
- It is not difficult to transmit 9 or 16 dig. channels to some laptop, etc.
- I am sure that A. Farina is very able to help you to realize a "full"
2nd or 3rd order SA microphone, to obtain even better results in the future.
Best,
Stefan
P.S.: Ideal capsule position layout for a 2nd or 3rd order HOA mike
seems to be dodecahedric and icosahedric. ("As everybody knows"...)
Umashankar
Ps. Who from the sursound group will be at the Los Angeles AES ? We
are exhibiting various new Brahma microphones (including a large
diaphragm version.)
Umashankar
Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
Windows 10
From: Stefan Schreiber <mailto:st...@mail.telepac.pt>
Sent: Tuesday, September 6, 2016 9:01 PM
To: Surround Sound discussion group <mailto:sursound@music.vt.edu>
Subject: Re: [Sursound] New FOA recorder
umashankar manthravadi wrote:
> I am building a second order microphone with 8 capsules,
>umashankar
>
>
Why don't you consider to build some 3D version with 12 capsules?
The VR people might be quite interested in such a "simple" HOA mike.
Best regards,
Stefan
P.S.: It seems obvious that your mike is a 2D version.
P.S. 2: The associated 12-track recorder would be a secondary
problem... :-)
>From: Courville, Daniel<mailto:courville.dan...@uqam.ca>
>Sent: Tuesday, September 6, 2016 6:54 PM
>To: Sursound<mailto:sursound@music.vt.edu>
>Subject: [Sursound] New FOA recorder
>
>New FOA recorder
>
>https://www.zoom.co.jp/products/field-recording/zoom-f4-multitrack-field-recorder
>
>
>
>
>
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