*** Support files for the SPCMIC microphone array ***

The SPCMIC is an 84-capsules dual-face planar microphone array
https://spcmic.com/
The hardware of this compact microphone array is truly excellent.
The provided software, indeed, has some problems. So here I made available
all the FIR filter matrices embedded in the SPCMIC software, either in
original version, and in a "rescaled" version where the gains have been adjusted
so that the Full Scale sensitivity of a single capsule, equal to 132 dB SPL,
is carefully preserved.
These filter matrices are designed for being employed with any matrix
convolution software, such as these VST plugins:
- MCFX Convolver by Mathias Kronlachner
- X-MCFX by Angelo Farina
- X-volver by Angelo Farina
- Sparta MAtrix Convolver by Leo McCormack

Here you find also a number of test recordings (which show the problems of
corrent version 0.8.4 of SPCMIC software).
At the moment, the only way of operating correctly the SPCMIC is by using
the Mac version of the SPCMIC standalone program, saving the recording 
into a file with extension .spcmic, changing the extension of the file
to .wav, and opening it with the latest version of Reaper (the only program
supporting WAV files with more than 64 channels).
Then you can invoke the 128x128 version of X-MCFX, load the proper filter
matrix for the beamforming format you want to obtain, and finally save the result
onto a track with the proper number of channels (for example 16 for Ambix 3OA).
You also find here a couple of Excel files containing the results of tests
performend on the SPCMIC for evaluating the capsule sensitivity and the gain
of the beamforming filters.

Angelo Farina, 7 January 2024