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Dirac ART is now running on beta FW for Denon Xx800H AVRs!

It is worth keeping in mind that the less powerful Storm units limited the number of "support" channels, to keep it within the processors capabilities... the flagship models have no such limitations.
The question is, is the quality of the correction also impacted with less channels used (for example because there aren't enough filters for the system to use)?

So the version of ART deployed on individual AVR's may potentially be limited to a certain number of "support" channels, although you may be able to choose which channels are supporting and which are not.
For most of us out there, having 13 channels would be more than ample - and looking at actual implementations of ART by current Storm users, often even the 2 mains and a sub can make immediately noticeable improvements!... personally I would hope for 6 channels of support - which at just under 1/3rd of the channels the basic Storm AVP supported, should be viable by the Denon X800 series and competitors. Why 6: I have 4 full range speakers capable of going down to under 30Hz, mains L/R and Surround L/R + 2 subs... my height speakers are severely constrained in the bass, my front centre goes down to 40Hz in theory... so could potentially be a 7th channel - still even at 7 channels, that is 1/2 what the more limited Storm unit supports - so should be viable!
I don't even have one channel that is full range, I have a sub-sat-system crossed over at 80 Hz because the speakers can't really do much below that (XTZ M6) but I have 3 subs. I'm still very interested in ART. I suspect ART could still bring noticeable improvements with only the subs to work with. If I could get ART, I'd probably buy a fourth sub and maybe even switch my S5 surrounds out with M6s if that helps (no idea if ART can do anything with the main speakers if it can only use them >80Hz) to give it more options. Frankly, I wouldn't want to use ART with my main speakers anyways since I wouldn't trust it to know the limits of my speakers and I don't have enough amp power for that application as well. I'd rather just make it use my subs, which already have capable limiters built into them, so I don't have to worry about overdriving anything...

I know for a lot of people, this is not what they want to get ART for, they have huge, capable speakers with lots of amplification behind them in addition to multiple subwoofers and sure, in those applications - especially if it's in a dedicated, already well treated room, ART will probably be able to get the most out of a system but I suspect a lot of people also have a use case similar to mine. If D&M and Dirac want to roll out ART for the Denon X800 line, it has to perform in non-dedicated rooms, with less than ideal speaker placement and count, often in an unsymmetrical layout. So my biggest question is, will ART be able to bring significant improvements in such conditions or is it only usable in "good" rooms..?
 
That is encouraging news. Glad for AV 20 owners. Hope that AV 10 if not far behind :rolleyes:.
 
And the entire x800H series - not to forget our comrades :D.
 
This looks promising...
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When you click on that coming soon logo for Denon it asked about which AVR you own and want email updates. Hoping the X3800 supports ART if they are showing it as an option.
 
How does it work with ART, in a sense that the technology doesn’t go beyond 150Hz. Does the MIMO optimisation occurs on top of DLBC?
 
The question is, is the quality of the correction also impacted with less channels used (for example because there aren't enough filters for the system to use)?


I don't even have one channel that is full range, I have a sub-sat-system crossed over at 80 Hz because the speakers can't really do much below that (XTZ M6) but I have 3 subs. I'm still very interested in ART. I suspect ART could still bring noticeable improvements with only the subs to work with. If I could get ART, I'd probably buy a fourth sub and maybe even switch my S5 surrounds out with M6s if that helps (no idea if ART can do anything with the main speakers if it can only use them >80Hz) to give it more options. Frankly, I wouldn't want to use ART with my main speakers anyways since I wouldn't trust it to know the limits of my speakers and I don't have enough amp power for that application as well. I'd rather just make it use my subs, which already have capable limiters built into them, so I don't have to worry about overdriving anything...

I know for a lot of people, this is not what they want to get ART for, they have huge, capable speakers with lots of amplification behind them in addition to multiple subwoofers and sure, in those applications - especially if it's in a dedicated, already well treated room, ART will probably be able to get the most out of a system but I suspect a lot of people also have a use case similar to mine. If D&M and Dirac want to roll out ART for the Denon X800 line, it has to perform in non-dedicated rooms, with less than ideal speaker placement and count, often in an unsymmetrical layout. So my biggest question is, will ART be able to bring significant improvements in such conditions or is it only usable in "good" rooms..?
Suggest you read the Storm user threads on Dirac (there is a big one on AVS).

There are consistent reports of excellent results in untreated (ie: not "good") rooms, and also substantial reports from music only users with either 2.0 or 2.1 systems, also reporting excellent results - even with only 2 or 3 channels.

There are also a number of users that have measured and published their room measurements - the results are definitely measurable.
 
I have at one point spent some time on ART but honestly can't say I answered all the questions I had back then. I also had Storm 16 in my room for a day year or so ago, but the trial was not that successful - most likely ART and Dirac were not set-up right by the dealer and I had no time or idea how to make it better.

In that respect, if someone with practical experience could be kind enough to answer these practical questions, it would be great. Pls don't send me to AVS as don't partake there any more. And these are some fundamental questions that might be difficult to answer by piecing together 300+ pages thread.

1. When one designates supporting speakers and sets the limit of their support (e.g. 50hz), how exactly is that being rolled off, or is it at all? I assume it is not a brick wall but some filter, but could be wrong. Goes to the point that I have no idea how strong the supporting signal might be and where it would end.

2. To point above - understand that there is a slider as to intensity of the support per group of supporting speakers, so one can decide how hard to push. Do we know what the maximum setting means in terms of dB?

3. I also understand that one has to designate subs as LFE and supporting subs. Does that mean that "supporting" subs will not play LFE but just the canceling role? This would seem like quite a bit of waste. If they are just out of phase like in DBA they would still play LFE and contribute to SPL, albeit SPL would be lower than if no DBA. If this is true, could this be circumvented in 2 sub situation by connecting 4 outputs to 2 subs (L+R inputs) and have them play both roles? If not true, could in 4 sub scenarios groups of 2 subs do both LFE and support each other (like in DBA)?

4. How would ART hand over 20hz to whatever (Dirac Live? DLBC? and which one). I think I recall from Storm write up that it will continue to follow the curve set before. Not sure how you set the curve, so is there a cut-off at 20hz on the screen (so you can't go below that)? While this is a question of general interest, I do have huge room bump at 15hz that if not checked is just going to ruin it all.

Many thanks in advance if there are members that can help with the above. Would be much appreciated.
 
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