Dirac Live Room Correction Suite Designed for Computer Audio

There are three main approaches to room treatment—treat the room, treat the music, treat yourself (i.e. do nothing). The main problem with room treatments is they usually look like room treatments and most people prefer that their home look more like a home than a recording studio. I have found that everyday items like books and LPs can help and unlike traditional room treatment slabs and cylinders, the more books and LPs you have the better off you, your home and your decor are. But what about treating the signal to fit your room?
Dirac Live® is a state-of-the-art digital room correction technology which optimizes the sound system both in terms of the impulse response as well as the magnitude frequency response. The result is a substantially improved musical staging, clarity, voice intelligibility, and a deeper and tighter bass, not just in a small sweet spot but in the entire listening volume.
All you need is an omnidirectional full-bandwidth measurement microphone, a mic preamp (Dirac recommends the XTZ Microphone to Dirac Live Room Correction Suite™ for $140), the Dirac software ($850) which runs on both PC and Mac, and a computer, but I know you already have one of those, and you're ready to c-o-r-r-e-c-t your room (I can't help but think of Delbert Grady from Stanley Kubick's The Shining whenever I hear reference to correcting anything). Perhaps your room needs a good talking to, if you don't mind my saying so. Perhaps a bit more..

The suite supports up to 8 channels and up to 24 bit resolution at a 96 kHz sampling rate. The technology is unique in that it corrects not only the frequency response but also the impulse response of the signal, in contrast with other solutions that do not optimize the impulse response. Correcting both the frequency and impulse responses yields remarkable improvements in the stereo image, clarity and overall reproduction of the music. MSRP for the Dirac Live Room Correction Suite is $850 with an introductory discount of 25% available now from Dirac. There is also a Free Trial Version with full functionality to download.
You can read all about the Dirac Live Room Correction Suite at their website and download a free trial version here.

jneber's picture

I've been using IK Multimedia's ARC successfully for the past two years. It's cost is much lower and uses Audyssey technology. I believe it is 24/192 compatible. I will definitely download the Dirac demo however to compare the two and report my impressions.

rtrt's picture

I'd be interested in hearing how you get on with the comparison

philipjohnwright's picture

The question is in the title - I use both PM and AV and find they are both sometimes lacking in their integration with other software (mainly iTunes, particularly AV).

I like the sound of Dirac and only use my Mac Mini to listen to music, so it could be ideal. But don't want to add another variable to the mix and set off a pandora's box of IT related issues!

rtrt's picture

Do you plan to review the software package Michael? As you say there's a full feature 14 day trial, and you need a high quality microphone. I don't have access to one, if you did then you could let us know how it performs?

On the face of it, the package looks like it offers similar core functionality to  the Dspeaker antimode. But the antimode offers additional capabilities like USB dac, tilt tone controls etc.

if the Dirac package didn't have the 25% off offer running, then I'd say the dspeaker looked like it was better vfm. But it's really about the sound, so maybe there's a home audio dsp comparison article in there somewhere?

AJvR's picture

I would also like to see this reviewed, it seems like a very sophisticated solution.

BTW, I do not think that you can compare this to the Dspeaker antimode, Dirac Live is able to correct the whole frequency spectrum and does impuls response correction with mixed phase filters, interesting stuff. 

rtrt's picture

interesting re full frequency correction. i'd understood from what i'd read that response correction should be limited to bass frequencies. ive seen various max frequencies quoted but always seem to be below a few hundred hz. fairly sure ive read it on pro audio sites as well as hifi.

fouf1301's picture


I am joining my voice to those who have requested a review. I have been looking for a room correction solution for a while now, after lukewarm results with another software called Audiolense. 

Michael Lavorgna's picture

And I may also review the DSPeaker Anti-Mode...This will most likely all happen, if all goes well, post-CES.

Update: a review of the Dirac Suite and XTZ Microphone is confirmed.

rtrt's picture

Looking fwd to it.

Interesting what comes to mind as you think about hardware vs software solutions.

I'm definitely in favour of less boxes. But licensing might be interesting.

For example my main source for music is an old iMac, but some problems a while back meant I used a windows netbook for a few months.

With an antimode there would've been no problem, but with Dirac I'd have been without the room correction all the time I was using windows.

AJvR's picture

You could also experience it the other way around, thus when the antimode needs to be repaired. If you have a backup of your music collection I think it is much quicker to get playing again with a computer / software solution. Just reinstall the software on a different machine and you are ready to go... 

mikhaildimitrov's picture

I'm curious as to whether this product (or a not-too-major upgrade thereof) could be utilized in a capacity beyond bass management/room correction, to where it serves as a full-fledged digital crossover for multi-way speakers... and preferably (unlike Pure Music's built-in IIR-filter-only feature) with linear-phase-FIR filter capability, individual driver correction, etc. In short, the works. Current solutions for high-end fully active setups continue to be either quite costly while tied to (usually outdated) proprietary hardware (i.e. DEQX — especially when more than 6 channels are required as in a 4-way systems, Trinnov, etc.); or, in the instance of software-based packages running on standard PC's/Macs, are invariably put forth by relatively obscure manufacturers who seem to be largely unable/unwilling to provide solid support (beyond engaging in self-congratulatory chat sessions with their respective base of a handful of fanboys), and/or are myopically focussed upon a few feature-set-tangents while wholesale marginalizing/not giving proper consideration to the importance of crucial interrelated factors in the reproduction chain (example in one instance of an otherwise promising software app: forcing the customer to have to choose from a couple of mere gaming-grade soundcards with atrocious sound quality as their only options for D/A conversion, because they're vehemently convinced that "all electronics sound the same" and hence external DACs are basically silly... SERIOUSLY???) and who seem insulted when pressed to provide further clarification when something obviously hasn't been fully addressed in their product/approach. So it would be quite a relief to see a legitimate company with some resources and grown-up/ego-free customer service mentality come to the rescue with a remotely affordable product that provides actual current-century technology in a flexibile, scalable and user-friendly package. That said, happy 12/21/12 (we're still here!?)

DMark1's picture

I'm very interested in seeing this Dirac review.

Can you please test Dirac with JRiver to see if they can work together to provide a DSP room corrected signal for multichannel music and movies?