Dirac uses machine learning but I don't think it has AI yet. If anything, more and more AI will come to these "optional SAAS" as it will keep AVR costs down.
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Active Room Treatment (ART) by Dirac
- Thread starter Flak
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Umik 1 has it limits but if you only use it for Dirac it is enough.
RenPa
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My 10 years old Umik-1 died a couple of weeks ago and I replaced it with a Umik-2. I am on DLBC not Art. I struggle a lot to get mic levels ands trim in DLBC correctly. For the moment I got weird and random results. Laptop + Win11. I just uninstalled and re installed Dirac v3.13.13 and miniDSP usb drivers, hopefully it will solve my issues. Not very happy for now.
Yet another datapoint in support of UMIK1...
You can calibrate with the UMIK-2 without any issues at all.
I own both the UMIK-1 and UMIK-2, and I’ve never felt any advantage or disadvantage between them when using Dirac.
ART has finally arrived in the bedroom as well. The sound there is even more pleasant than I expected…
The MDAT file contains data for the MLP with ART, RC, and BC, as well as measurements taken away from the MLP.
drive.google.com
The MDAT file contains data for the MLP with ART, RC, and BC, as well as measurements taken away from the MLP.
Bedroom.mdat
drive.google.com
RenPa
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Could you please give me an information that I desperatly need and that I can't find clearly.
My laptop is Lenovo Thinkpad 2021 with Win11. I installed miniDSP drivers for usb Umik-2 .
What are your settings in Win11 for bit depth and sample rate when you use Umik-2 and Dirac.
I use Dirac v3.13.13 for DLBC filters. Umik-2 gives me totally different delays for satellites from 1,56ms with the old Umik-1 and 3,68ms with Umik-2.( same delays for the 2 subs though)
I’ve never really paid attention to it, but the UMIK-2 is set to 32-bit / 48 kHz. That’s probably the default setting.
Today I was brave and started the ART-setup on my Denon X3800. Was quite hesitant because Dirac has given me headaches with lots of errors so far but now ... no failed measurements, no app crash. I'm very relieved and satisfied with the result so far.
What puzzles me though is how Dirac detects the support ranges as they are 50-150 Hz for all speakers by default...
So far I have set limited support for the surrounds (90-150 Hz). Is a lower support frequency feasible with these small Kef speakers according to the measurements? Should I lower the support frequency for FL/FR/C?
These are the measurements before correction:
FL/FR (Mesanovic CDM65):
C (Genelec 8351):
Surrounds (Kef LS50 Meta):
What puzzles me though is how Dirac detects the support ranges as they are 50-150 Hz for all speakers by default...
So far I have set limited support for the surrounds (90-150 Hz). Is a lower support frequency feasible with these small Kef speakers according to the measurements? Should I lower the support frequency for FL/FR/C?
These are the measurements before correction:
FL/FR (Mesanovic CDM65):
C (Genelec 8351):
Surrounds (Kef LS50 Meta):
RenPa
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yes it is. Thanks
Your support ranges look completely fine as they are.
Even if you lower the support range more than you expect, the output is distributed across the system, so it often works without causing any issues.
Enjoy exploring ART!
Does this discount apply to adding licenses to miniDSP devices like the miniDSP Flex?Hello!
The Dirac's Black Friday week starts this coming Monday, November 24th
KenMasters
Active Member
I wonder about this myself. Much of what I've read suggests you should set the speakers to the manufacturer stated F3 regardless of in-room gain, but the generated filters don't look as though they would be particularly taxing.
I've had my LS50 LCRs set to 80Hz out of caution, but I've set them back to the default 50Hz and will keep an eye on the drivers over the weekend, see how it goes. Comparing the two briefly with some bass heavy music, I'm not noticing a difference at the MLP, though of course there is a large difference in the filters generated.
Will take some measurements next week if no obvious issues come up over the weekend.
Can I assume that you used the UMIK2 90°calibration file specific to the serial number for your UMIK2?
RenPa
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I hope so after 10 years in this hobby if I didn't do it my wife is right I am a foo....
although a mistake or an oversight is always possible at my age!
Living on the edge for audio science ... thanks!
Did about 2 hours back and forth switching between my favourite DLBC profile for music and ART (both +4 dB Harman) and decided to delete all dlbc profiles.
Bass is very tight (dry) now, even with my movie-profile (+6 dB) it's more precise than before. With DLBC (+4 dB) I had to manually set a steep roll-off below 30 Hz, otherwise the bass would become "boomy" too soon (for my neighbours at least).
If both ART and Bass Control sound appealing, being able to switch between them would be like getting two great flavors in one.Living on the edge for audio science ... thanks!
Did about 2 hours back and forth switching between my favourite DLBC profile for music and ART (both +4 dB Harman) and decided to delete all dlbc profiles.
Bass is very tight (dry) now, even with my movie-profile (+6 dB) it's more precise than before. With DLBC (+4 dB) I had to manually set a steep roll-off below 30 Hz, otherwise the bass would become "boomy" too soon (for my neighbours at least).
But ART is just too good, so it naturally ends up overshadowing everything else.
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Got the 3800 and ART on black friday sales. Set it up today, and wow! Now I get what you all have been raving about.
Final step for me is to try the latest OCA Evo version.
Final step for me is to try the latest OCA Evo version.
agentcooper
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Earlier this week I switched out my Anthem MRX 720 (using additional amplification for 7.2.4) to a Denon X4800h and purchased Dirac ART immediately. Setting up new AV equipment is fun.
My first impression with the default ART settings was "Okay, this will probably be an improvement over the Anthem with MSO and ARC Genesis." Next I loaded in a fairly aggressive Harman curve, tweaked some support settings, and put on a scene I'd recently noted as good demo material: two women talking punctuated by a grenade going through a window and exploding.
I'm not kidding: even knowing it was imminent the explosion jump-scared me. It was loud, impactful, and extremely tight.
Having four subwoofer outs on the X4800h and an easy spot to place a third subwoofer I initially planned on adding another. Of course I still may but at this point I imagine it will be a marginal gain. (My current subs are a SVS SB-2000 (older, not the Pro), and a CSS SDX 12 with dual passive radiators powered by a Dayton SA1000).
Thanks to everyone contributing to this thread.
For some objectivity I'll attach a screenshot of sweeping my center channel with ART on and off.
My first impression with the default ART settings was "Okay, this will probably be an improvement over the Anthem with MSO and ARC Genesis." Next I loaded in a fairly aggressive Harman curve, tweaked some support settings, and put on a scene I'd recently noted as good demo material: two women talking punctuated by a grenade going through a window and exploding.
I'm not kidding: even knowing it was imminent the explosion jump-scared me. It was loud, impactful, and extremely tight.
Having four subwoofer outs on the X4800h and an easy spot to place a third subwoofer I initially planned on adding another. Of course I still may but at this point I imagine it will be a marginal gain. (My current subs are a SVS SB-2000 (older, not the Pro), and a CSS SDX 12 with dual passive radiators powered by a Dayton SA1000).
Thanks to everyone contributing to this thread.
For some objectivity I'll attach a screenshot of sweeping my center channel with ART on and off.
Attachments
Last edited:
KenMasters
Active Member
So I have the wife's feedback for you now. She didn't notice anything different over the week, then last night we sat listening to music and I asked here to select tracks she likes and toggled between the two. She said she didn't hear a big difference but though ART was maybe a bit more impactful, but both sounded good to her.
I asked her how it compared to the previous time we tried ART, she said that was clearly worse, it sounded hollow. I keep trying to think what could have caused it to sound that way, I can't make sense of it, but at least it's not longer an issue.
So for her, she wouldn't have spent the money, but thinks it sounds good, so it's a win in that category anyway. Of course I think it makes quite a difference, but I think us audio folk are a special breed.
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