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In Reply to: RE: Yes, somewhat unique posted by Kal Rubinson on April 03, 2020 at 10:26:42
Hi Kal,
Interesting. I hadn't realized that's the room-correction system they're using. What I can't help but wonder, though, is how similar it is to the RoomPerfect system, which is apparently time-based and bent on correcting room-effects only and leaving the response of the speakers alone.
Doug Schneider
SoundStage!
Follow Ups:
My experience with RoomPerfect was dire but perhaps I was unlucky. I had a loan Lyngdorf TDAI-3400 amplifier that I was hoping would offer good things, specially as it included RoomPerfect. It was pretty good as an amp without RP engaged, but after running the microphone procedure a few times, I found the resultant effect was that the life was sucked out of the music. A weedy sound seriously lacking in bass.My next amp may be a NAD M33 when it's released and this has Dirac. I'm somewhat sceptical of all these "room correction" systems, but I'll certainly give Dirac a chance to convince me. Apart from RoomPerfect, I've used a Micromega amp with MARS (this did make a small improvement with its properly calibrated mic) and Martin Logan 13A speakers with their included Anthem system (not convincing).
I wonder whether these room correction systems will lead to poorly designed speakers. A lazy manufacturer (or one without a big R&D budget) may think that as long as every frequency can be reproduced by one of the drivers he includes, why bother to even attempt to design the cabinet, crossover circuit, etc to achieve a linear result? Leave all this to DSP and this will not only resolve shortcomings of the speakers, but also the room. Job done with no real effort by the designer. I'm not suggesting that respected present-day speaker makers will do this, but it may offer opportunities for building "good sounding" speakers that are basically crap and totally dependent on DSP to sound anything other than dreadful. Discuss!
Edits: 04/09/20
Conversely, it may be that speaker designers, when freed from the constraints of passive speaker boxes and crossovers, might come up with a totally new approach that sounds even better.
Tom
I did not know that the RoomPerfect system is more "time-based" than other systems as, I think, it is an outgrowth of the old Tact system. It uses somewhat random spatial sampling that, all by itself, biases it towards dealing with the space and less so the speaker. One samples randomly until the system gains sufficient "room knowledge" although it often helps to measure a few boundary positions.
Hi,
I'm not sure it's currently based on the Tact work. Last November, when I sat down for coffee with Peter Lyngdorf, he told me that in the early 2000s, he scrapped all the room-correction work they had done up till then, hired 30 developers, and rebuilt the software with what he referred to as a "time based" correction approach, which they weren't using before. Now, whether this "time based" approach is the same or even similar, I have no idea -- lots of people call different aspects of audio "time based." But this is to say, I don't think it's an outgrowth of the Tact system anymore.
Doug Schneider
SoundStage!
I have heard that but not seen any evidence yet.
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