Each of the microphones comes with its own software for this purpose, but there is a single program (or rather, plugin for audio editing programs) called VVEncode, from VVAudio, which is able to use the calibration data for any of the microphones, and so this is what I use. First the signals from the four capsules are converted to Ambisonic B-format, with the simultaneous correction of any unevenness in frequency response. The soundfield microphones we use all require their output to go through software processing before use. Old-fashioned looking meters (to the BBC design I was trained to use) are courtesy of zplane's PPMulator. An alternative that is sometimes preferable is Plogue Bidule. When recording using a laptop rather than a stand-alone recorder, the software used will normally be AudioMulch.
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