Preliminary
miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice 42
7 DIRAC LIVE
The miniDSP Flex can be upgraded with Dirac Live® at the time of purchase, or at any later time by purchasing
the upgrade from our webshop:
• https://www.minidsp.com/products/dirac-series/2x4hd-to-ddrc-24
7.1 HOW DIRAC LIVE WORKS
Dirac Live replaces the input channel parametric EQ. It uses mixed-phase filtering technology to improve the
imaging of your stereo, minimize the effects of room modes and resonances, and improve dynamics and clarity.
To accomplish this, the Dirac Live software steps you through the procedure for taking measurements around
your listening area. It employs a sophisticated analysis algorithm to make the optimal correction across the
whole listening area, not just at a single point. The user has full control over the target frequency response.
Measurements are taken with a calibrated acoustic measurement microphone such as the miniDSP UMIK-1 or
UMIK-2.
In addition to correcting magnitude response, Dirac Live® corrects the system’s impulse response, which reflects
how the system responds to a sharp transient such as a drumbeat. Reflections, diffraction, resonances,
misaligned drivers, and so on, all combine to smear out the transient. Correcting the impulse response makes
the speaker in the room behave much more like an ideal loudspeaker. The impulse response is a critical factor
for accurate sound-staging, clarity and bass reproduction.
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