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I finally connected a dCS Delius Upsampler to the output of my sound card via a twin pll Assemblage D2D jitter buster at the native output frequency, upsampling to 176.4k for CD and 88.2k material. Cable terminations are all 75Ohm BNC with Toslink output from the card into the Assemblage.The sound is much better than using SRC or SSRC outputted from Foobar, and rather 'vinyl' in character. My own recorded 88.2 k Proms Concerts made on an Alesis Masterlink now sounds much better than that played thru' the Alesis or Foobar without upsampling. The DAC is an RME ADI2.
I don't think I can go back to Foobar upsampling and be satisfied.
Follow Ups:
Well, unless someone implements the same usampling algorithm for foobar or even comes up with a better one. After all, this upsampling algorithm is just a piece of software.Cheers
"I finally connected a dCS Delius Upsampler to the output of my sound card"Fmak - which soundcard did you use here? Is the spdif output ASIO capable?
Asio.dll 0.47a in Foobar. Sorry it is the Purcell upsampler, not Delius dac. Terratec 2496 card with NO src also Asio.This shows that the software in the Purcell hardware is much better than SRC!
I'm not so sure the Purcell is any better than SRC. Maybe using the upsampler as a seperate box gives the system a way to reduce jitter from the computer (much like upsampling in a Benchmark DAC1 reduces jitter from the input signal).
If we are switching from using SRC to using a Purcell, are we not changing more than just what is doing the upsampling?To be a valid comparison, you would need to simply bypass the upsampling in the purcell, and use SRC, then (conversely) disable SRC and enable upsampling in the purcell.
If you take the purcell OUT of the circuit you're changing much more than just what is doing the upsampling right? You're also changing what is doing the D/A conversion no? Or is the purcell being used for D/A conversion in both cases?
These things are not always intuitively obvious to compare "fairly".
nt
I know some people are touting toslink out of PC to isolate form "PC noise," but any decent digital output/input is already transformer-coupled.I recently modded spdif coax out of my Lynx soundcard to true 75 Ohm BNC as well as digital input on my DAC to 75 Ohm BNC jack with some very nice gains in clarity and transparency.
Don't like Toslink either and I shall connect spdif bnc 75 later.Just convenient at present. But the sound thru the Purcell is better day and night than src or ssrc.
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