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+--- Thread: DSD via USB (/Thread-DSD-via-USB)
RE: DSD via USB - Divasson - 03-Jun-2015
There is a good discussion on what is native DSD in this article.
http://www.positive-feedback.com/Issue78/dsd.htm
While the Devialet includes a DAC chip that is classified as "native" by the article, it does its processing in high bit PCM - to run it native would imply defeating the way volume is implemented in the aDH technology.
RE: DSD via USB - Music or sound - 04-Jun-2015
(02-Jun-2015, 20:52)AllenB Wrote: Well I'm a little confused!!
I tried out DSD via Audirvana Plus 2 on USB to my Dev 200 with 8.0 firmware. Nice.
I have posted elsewhere that I felt sound quality had stepped down from 7.1.3, so I reverted back to that firmware at the weekend. A couple of days later (this evening) and I hit play on the DSD files in A+2, forgetting that I had downgraded the firmware, and it has played, no problem.
Only I can think is that A+2 has converted the DSD to PCM prior to feeding my 200. Am I barking up the wrong tree here? Or just barking?
Audirvana+ sends the DSD files out via DoP (DSD over PCM) which means DSD in a PCM file format so still not converted to PCM. The conversion occurs via the MAT algorithm in your D200.
RE: DSD via USB - Antoine - 04-Jun-2015
I think AllenB meant why did the DSD files play succesfully after he reverted back to FW 7.1.3 which has no DSD(DoP) support.
I don't think there's any other explanation for it then that A+2 is indeed enabled to auto downconvert to PCM if no DSD native/DoP capable DAC is 'detected'.