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Frequently Asked Questions and Dirac Live RCS
The software that runs on both PC
and Mac is meant to cater to the non-technical
user as well as the acoustic engineer. It is an acclaimed
measurement-based solution for improved sound quality when you are
listening to a hifi system with your computer as source and player.
It firms up the bass, removes resonances, focuses the stereo image
and makes voices stand out like you never have heard them
system requirements and technical
The technology on which it is based, Dirac Live®, is a result of years of
research and patented digital signal processing. Used by
leading high-end hifi companies, in luxury car sound systems such
as Rolls Royce, BMW and Bentley and also in many digital cinema
theaters around the world.
The Dirac Live Room Correction Suite
consists of two modules of software:
A simple step-by-step guided tool that allows you to measure
and analyze the quality degradations that your loudspeakers and
room imposes on the sound. Correction data is generated
The room calibration tool
requires a microphone for the acoustic
measurements and works with standard sound cards and
USB DAC:s. No specialist knowledge is required. Take the
measurements and the software figures out the rest! If you are
an advanced user, you can however edit the target frequency
response. View recommended microphones
Dirac Audio Processor
Enables you to apply the created correction data to all sound that
is played from your computer, regardless of media player or
Dirac Live Calibration
Two views of the Dirac Audio
correction software supports up to 8 channels depending
on version and up to 24 bit resolution at 96 kHz sampling
rate. The technology is unique in that it corrects not
only the frequency response but also the all important impulse
response. This is in contrast to the common minimum-phase room
correction systems that by definition do not optimize the
impulse response. Correcting the impulse response yields
improvements in the stereo image, clarity and transient
reproduction of the music. Read more about the
technical aspects of Dirac Live.
For professional audio, plugins are the most common way of
implementing room correction. However, there are a few advantages
in using the Dirac Audio Processor instead:
This digital room correction software is not a common
sound optimization plugin such as a VST, AU or AXX, simply
because these plugins only work when running inside a certain music
application. Complaints from music recorders is that the only music
they can hear optimized is the music they are making and not the
one coming from common music or streaming services like iTunes or
Spotify. You cannot listen to the optimized sound unless you import
the music into this program. This is sometimes complicated if you
are mixing, since you have to switch off a lot of other sound
processing actions. Dirac Audio Processor solves this problem.
software optimizes all sound that leaves your
computer, regardless of application.
• The software does not
need to be bypassed in contrast to other software, in which,
before bouncing, or rendering a file as a final mix, you must make
sure to switch the room optimization off, so your room optimization
curve is not printed into the mix (different people's rooms have
• The software lets you
check that the final mix sound is okay in contrast to other
programs from where you have to re-import it back into the program
when you want to check it, since you can only hear the room
optimization from within a certain program. But then you also have
to bypass all the other plugins in that program, which can be a
• The software allows a
wider range of microphones and uploading of
room calibration files compared to other software that only
supplies a basic microphone.
• Using Dirac
Live, the professional user has unprecedented flexibility in
shaping the target response to their needs. Coupled with the
performance advantages from Dirac's patented impulse response
correction, Dirac Live RCS offers distinct benefits for
Try the Dirac Live
Room Correction Suite with full functionality for 14 days.
We believe that it is hard to find a more cost efficient upgrade in
terms of sound quality.
Become a licensee?
WHAT OTHERS HAVE TO
"Our customers expect the ultimate in every
experience and Dirac provides the ultimate within digital signal
Mike Hanks, Senior Engineer at Bentley Motors
"I always wondered what my system would sound like in a room
optimized for acoustics. Unfortunately I can not make my living
room look like a studio. Instead I downloaded the trial version and
tried it out. After two weeks it was hard to live without the room
correction program from Dirac, the sound was more organic and
natural to my ears. It is a lot of money but still worth every
penny. I recommend all of you to try this program."
- Kareem Shawwaf,
"I was completely amazed by the difference that Dirac
made to my new studio. My speakers are great but have several
acoustic issues in my new studio resulting in the mixes not
translating as expected, it was a friend who recommended I try
Dirac. Now everything sounds just right!... significantly more
accurate across the whole frequency range plus the imaging is
- Ian Wallman, record producer (Ivor Novello nominated), UK
"The proof of all this pudding was in the listening, and it was
- Kalman Rubinson, Senior Contributing Editor, Stereophile
Dirac Live RCS User Manual v1.0.4
PRODUCTS WITH DIRAC LIVE
Dirac Live® is
in BMW's top level
uses Dirac Live® sound
Dirac Live® is used
in the Naim for
Bentley audio system.
Dirac Live® is used in
BMW M's Individual
High-end audio systems.
High-end cinema and
audio processors based on
Dirac Live® technology.
Offers Dirac Live® technology
their Theta Digital Casablanca
III HD customers.
Dirac Live® is used in
the Naim for
Bentley audio system.