Originally Posted by Bittermidget
While I respect your opinion, Lars, I think you're making some black and white statements about Dirac and ARC that are really not so easy to determine.
Of course ARC does not automatically set speaker distances while Dirac does. I'm not sure that functionality is a real deal breaker and I think most would still measure distances manually to verify the distances Dirac has chosen.
Better bass management is another statement that is a bit all-encompassing. Bass management can be as simple as selecting crossover frequencies between one or more channels and subwoofers, the crossover slopes, and properly steering a signal throughout the speaker set. In this case, I don't think ARC is inferior to Dirac at all.
The statement about ARC killing all reflections...well this is very dependent upon the maximum correction values you are asking the room correction software to intervene. If you want higher frequency correction, you can choose that. If you want to only correct into the bass/upper bass frequencies, then you can avoid messing with the "good reflections" if that is what you really want to keep.
And you cannot just call the ARC mic "not good". Have you tested the frequency response with the ARC mic and the UMIK mic to compare? I have, and for the frequencies where the mic is being used for textbook correction, they are both very accurate. Now if you're talking about mic accuracy at frequencies approaching 20K, then I'm not sure either mic is the best suited for this.
In the end, I don't think you can just discount ARC based on the criteria you listed. Dirac is a great room correction solution and so is ARC. It depends what you are looking to do with it.
Much to agree with in that post. I agree that both ARC and Dirac are good systems (I use both).
There are two areas where I think Dirac is ahead of ARC (& I hope ARC will catch up). First, ARC uses a proprietary mic, and with its cal file supplied encoded, it's impossible to have the calibration checked or redone. Even ARC Tech Support told me they could offer no way of recalibrating a mic. In contrast, the UMIK-1, with its calibration file in plain text, can be re-calibrated economically by an independent lab. It's great that
's sample appears well calibrated, but it would be far better if any customer could have this checked by a specialty lab.
The second area where Dirac has the upper hand is flexibility in editing the target curve. ARC Genesis has provided a lot of flexibility at top and bottom ends and none
in the middle. For music systems, small changes can be important -- to my ears, anyway -- and I want more flexibility in ARC.
A strong point of ARC is the well engineered hardware it appears on. I don't know of a box integrated with Dirac that offers tone controls, full bass management (including adjustable crossover frequency and slopes) for two subs in mono or stereo, and automatic phase adjustment, as the STR Preamp does.