Acourate DSP version 2 out now!

Acourate is one of the best possible software solutions for speaker and room correction. Its generated convolution files integrate perfectly with Roon.

Now, version 2 is out! It has been completely overhauled and is much easier to use with more of the most relevant radio buttons now being directly accessible.

And the real good news: Using it with the same parameters and the same measurements it sounds even better: More transparency and more detail! Wow!

The new Inter-Channel-Phase-Alignment (ICPA) functionality is a boon for those not having the perfectly symmetric room. It solves a key problem in the modal frequency region. This leads to a more coherent bass sound.

If you have already got Acourate: The update is a must. If you haven’t got it yet: Go for it!

Regards, Ralf


I’m downloading my upgrade to v2.0 now. The wait is agonizing. LOL.


I agree that Acourate is one of the most valuable “components” in my audio system. Right up there with Roon and room treatments. My room sounds great without corrections, but results with Acourate filters are astonishing.

Edit: download finally complete. It seems to work. Here’s a quick before vs. after vs. target for amplitude correction with the new UI. I really like the new buttons for macros 0 - 6. :slight_smile:

I need to spend some time practicing with Macro 6, but creating an ICPA correction will be so much faster and less error-prone than what I’ve been doing manually with v1.10.4.

I’m kind-of bummed that there’s no quick way to create the ZIP file for Roon’s convolution engine like there was with v1.10.4. Either that feature has moved or been removed. Not sure. No big deal to zip up the stereo WAV files manually, but I can’t think of a good reason for Uli to have removed it. Perhaps it will come back on a later release of v2.0.

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Hi @David_Snyder there should be a drop down in Room Macro 4 that has the Roon filter output to .zip


Haha. Cool. Thanks, Mitch! I figured it must be hiding somewhere. :slight_smile:

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Do you have phase before and after?

Hmmm I’ll have to try this. It’s been a long while since I used Acourate.

Have been using Audiolense XO with success.

I wonder if this V2 is now as user friendly as Audiolense? Early impressions @Mitch_Barnett ?

And do we have multichannel capabilities? JCR

Edit: @Mitch_Barnett, I was thinking this was in relation to your HLC product. Off topic, but does HLC support MCH yet?

I do. I’m re-working my filters this afternoon with V2 after adding a pair of SVS 3000 Micro subs to my system. I’ll post my progress and results somewhere…probably on Audiophile Style since that’s what I did last time.

I had intended to do this yesterday, but the system sounds so good after integrating the SVS subs by ear, I could not tear myself away from the music long enough to drag out the mic. I’ve had REL subs in my system, but there’s something special about these new “audiophile” SVS subs.

All good just interested to see what the software does with phase at crossover and/or PEQ correction points.

I’m more interested to see examples of multiway active setups.

People can see a demo walk-through of Acourate V2 with Macro 6 in my video:

@Jeffrey_Robbins working on it!

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Hi Stephen,

you can have a look at my project of a multimay active setup here:

Regards, Ralf


Very cool website @Ralf_Hoellmann

One thing I still don’t understand is the purpose of the pre-filter macro

Won’t placing the target curve at the correct gain level achieve the same thing , without running this Macro 0?

I haven’t seen an example yet where Macro 0 does something that is not possible with skipping it :frowning:

cc @Mitch_Barnett @David_Snyder

The benefit of the pre-filter is that the corrections are applied without smoothing, enabling them to be more precise. Applying corrections without smoothing only makes sense at lower frequencies, like below ~200 Hz, where the wavelengths are longer.

@Mitch_Barnett will correct me if I’m wrong. :slight_smile:

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That’s one part of the story. Sometime the room mode peaks are way above the average other frequencies, say 10-25dB. Without pre-filter you then need to reduce the level for all other frequencies too much. You should aim below 10dB reduction. This is why knocking the modes out 1st makes sense.

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