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TetraProc / TetraCal
| tetraproc | |
|---|---|
| Website: | http://kokkinizita.linuxaudio.o... |
| Description: | converts the A-format signals from a tetrahedral Ambisonic microphone into B-format signals ready for recording |
Screenshot: | |
| Author: | Fons Adriaensen |
| Version: | 0.8.2 |
| Releasedate: | 2011-02-28 |
| Download: | http://kokkinizita.linuxaudio.o... |
TetraProc converts the A-format signals from a tetrahedral Ambisonic microphone into B-format signals ready for recording. Main features:
- A-B conversion using a classic scalar matrix and minimum phase filters, or
- A-B conversion using a 4 by 4 convolution matrix using measured or computed impulse responses, or a combination of both.
- Individual microphone calibration facilities.
- 24 dB/oct higpass filters.
- Metering, monitoring and test facilities.
- Virtual stereo mic for stereo monitoring or recording.
- Unlimited number of stored configurations.
- Jack client with graphical user interface.
TetraCal is the microphone calibration application for TetraProc. Given a number of impulse response measurements of a tetrahedral microphome (captured using Aliki, see below) it computes the matching configuration file for TetraProc. Main features:
- Automatic determination of gain and directivity errors of the A-format microphones.
- Automatic computation of an A-B matrix compensating for those errors.
- Frequency and phase response display of all A and B format signals.
- Interactive adjustment of pre- and post matrix equalisers.
Future versions of TetraCal will also exploit the convolution matrix implemented in TetraProc.
TetraProc is available now, please contact me by e-mail. Release of TetraCal awaits some required changes in Aliki, and completion of the manual that explains the complete calibration procedure.
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