Wondering why there’s no word yet. Maybe the exclusivity terms stipulated that the other companies wouldn’t see the implementation specs until October, which means they will have nothing to announce until they confirm that they can and will implement ART.
There have been strong rumors of ART for AV10, including unofficial statements by Marantz representatives, so I would not worry too much.I bought an AV-10 with the hopes that it would get it - will be real disappointed in the price point of this AVR if they can't do ART and cheaper priced ones like monoprice monolith can. Please pleasantly surprise me D&M!
What is the scope of DIRAC ART? Is it limited to a small area around the MLP or does it consider other seating locations in the room as well? Attempting to cancel out room modes before they even form sounds great, but if it only eliminates the ones affecting the MLP, the rest of the room might still be a mess.
As demonstrated on the Storm platform, when implementing ART, you can choose how many speakers to allocate as "helpers"...I don’t think it’s only about exclusivity.
Implementing ART into Marantz, Denon and other AVRs isn’t trivial and the computing power of those AVRs might not be capable for ART on all 11.4 channels that some Denons and Marantzes have
In addition to limiting the number of support speakers, as I recall, there's also an internal limit on the total number of filters, or perhaps max filters per speaker (can't remember which, and frankly can't find the forum post I seem to recall) - so that's another tunable if I am correct.As demonstrated on the Storm platform, when implementing ART, you can choose how many speakers to allocate as "helpers"...
So in addition to the normal Dirac Target curves which apply to all speakers, there is the allocation of speakers to the "helper" role - and the smaller Storm AVP, is apparently limited to 10 helpers, due to processing constraints.
Once this is clear, then we can make some educated guesses...
1) Dirac have told us that if a processor can handle DLBC then it can handle ART... so that gives us an immediate indication on which AVR/AVP's will be sufficiently capable
2) Manufacturers can limit the number of "helper" speakers, so as to limit the processing load
3) We already have multiple user reviews of systems with fewer speakers (down to 2.1) showing that substantial benefits acrue from ART even when using fewer speakers
4) I would be very happy to see a setup limited to something like 7 helpers, perhaps at a more economical price point...?
Key thing is - an AVR/AVP demonstrably does not need to be capable of using 11.4 channels with all of them as "Helpers" - and at least one model from StormAudio, demonstrates that by being limited to 10 helper channels, even when using 16 channels.
Are the better processors like the elite mk3 unlimited?and the smaller Storm AVP, is apparently limited to 10 helpers, due to processing constraints.
Yep - although I believe they are 16 channel, so the limit is 16...Are the better processors like the elite mk3 unlimited?
I also wonder what speakers would be ideal as 'helpers'.
Subs in the corners are probably the most useful helpers but capable ceiling atmos speakers could also help a lot with vertical room modes.
You are underesimating their capabilities by a fair bit. This is what StormAudio tells about the ISP Elite MK3:Yep - although I believe they are 16 channel, so the limit is 16...
This is correct for the time being. IIRC the ART software version given to beta testers had a higher (adjustable) limit and StormAudio seemed to sympathise with a higher limit as well. Directivity issues seem to have stopped a public rollout currently. But it should not be out of the question that sooner or later ART may work up to a frquency limit higher than 150Hz. In that case subs might start to run out of steam in the then higher ART frequency range. (But still their corrective abilities may be useful because the ART corrections not necessariliy require a very high output volume.)In terms of what speakers are ideal - ART is limited to 150Hz, so speakers with a response from say 15Hz to 150Hz would be the "perfect" helper...
In reality speakers covering the response range from 30Hz to 150Hz would be ideal - which is most full range speakers, and many subs...
Absolutely. And although having full range speakers may be kind of a safe bet, I am not convinced that you cannot have excellent results with a number of bookshelf speakers in the mix.Most of the benefits are in the 40Hz to 100Hz frequencies.... and loads of speakers can cover that range!