After instantiating the plug-in, you open the calibration program which scans for a “device” that will ultimately store your filters and do the audio processing. There are two components to utilizing Dirac Live-the Dirac Live processor plug-in that will be inserted within a DAW session, and the calibration tool program that will read your room’s response, create a custom filter(s) and communicate with the plug-in. I tested Dirac Live in stereo, as Audio Units on a Mac Pro. The stereo version sells for $349, while the multi-channel version is $499. Dirac Live is compatible with all the major DAWs and supports nearly every multichannel format under the sun (2.0, 2.1, 3,1, 4.1, 5.0, 5.1, 5.0.2, 5.1.2, 6.0, 6.1, 7.0, 7.1, 7.0.2, 7.1.2, Quadraphonic, Pentagonal, Hexagonal, Octagonal and Ambisonic).
A measurement microphone is needed for calibration I used a USB reference mic as provided by Dirac, but other models are suitable (at least models that a frequency response plot is available for). This is accomplished with a combination of linear- and minimum-phase IIR filters, as well as impulse response correction (affecting the timing of signals and the ratio of direct to reflected sound).ĭirac Live is available in the ‘big four’ formats (VST, VST3, AAX and AU) for both Mac and Windows (OSX 10.11 and up, Windows 10, respectively). I reviewed Sonarworks’ Reference 4 software for PSN back in 2018, so I was eager to compare this new calibration/correction system from Dirac, as it promises to bring some different methodologies, concepts and results.ĭirac Live seeks to correct room anomalies and inaccuracies in both the time domain and the frequency domain to improve the soundstage with greater imaging and localization of sound, increased clarity and intelligibility, as well as tighter bass response with fewer resonances. With chart-topping artists producing hits in re-purposed bedrooms, basements, garages and hotel rooms, the need for acoustic analysis and correction is greater than ever.
Purpose-built rooms with ideal acoustic treatments may not need room correction software, but the rest of us do. The Dirac Live software guides users through the steps of the measurement process.
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