18-Feb-2023, 08:00
Arup,
A question. Why are you having Roon convert everything to DSD64 when the Devialet converts DSD to PCM before doing its digital to analog conversion?
Roon have a page on their website where they talk about upscaling and the reasons for and against having Roon upscale. One of the reasons for not having Roon upscale is that your DAC does a very good job of upscaling which results in no benefit being gained from having Roon do the upscaling. I've tried having Roon upscale PCM to 192/24 for streaming to my 140 Pro vs having Roon stream the music at whatever the native resolution is and letting the 140 Pro upscale and I don't hear a difference so I stream PCM at its native resolution and let the 140 Pro handle all upscaling.
I realise that converting PCM to DSD isn't simply upscaling but I can't see any advantage to converting PCM to DSD in Roon and streaming DSD to a Devialet where it is immediately going to be converted back to PCM before the Devialet can do anything with it. I'm not certain whether that conversion back to PCM is at 88.2 or 96 kHz or whether it's at 176.4 or 192 kHz, either way CD quality PCM is going to be upscaled by Roon before streaming to the Devialet but, as I said, I can't hear a benefit from having Roon upscale and I can't see a benefit in having Roon convert PCM to DSD when the first thing the Devialet is going to do is to convert DSD back to PCM.
Having said that, I do stream the DSD64 files I have on my Nucleus Pro to the 140 Pro as DSD and let the 140 Pro do the DSD to PCM conversion.
I'm not saying that what you're doing is wrong or sounds worse, I'm just wondering why you choose to stream in this way.
David
A question. Why are you having Roon convert everything to DSD64 when the Devialet converts DSD to PCM before doing its digital to analog conversion?
Roon have a page on their website where they talk about upscaling and the reasons for and against having Roon upscale. One of the reasons for not having Roon upscale is that your DAC does a very good job of upscaling which results in no benefit being gained from having Roon do the upscaling. I've tried having Roon upscale PCM to 192/24 for streaming to my 140 Pro vs having Roon stream the music at whatever the native resolution is and letting the 140 Pro upscale and I don't hear a difference so I stream PCM at its native resolution and let the 140 Pro handle all upscaling.
I realise that converting PCM to DSD isn't simply upscaling but I can't see any advantage to converting PCM to DSD in Roon and streaming DSD to a Devialet where it is immediately going to be converted back to PCM before the Devialet can do anything with it. I'm not certain whether that conversion back to PCM is at 88.2 or 96 kHz or whether it's at 176.4 or 192 kHz, either way CD quality PCM is going to be upscaled by Roon before streaming to the Devialet but, as I said, I can't hear a benefit from having Roon upscale and I can't see a benefit in having Roon convert PCM to DSD when the first thing the Devialet is going to do is to convert DSD back to PCM.
Having said that, I do stream the DSD64 files I have on my Nucleus Pro to the 140 Pro as DSD and let the 140 Pro do the DSD to PCM conversion.
I'm not saying that what you're doing is wrong or sounds worse, I'm just wondering why you choose to stream in this way.
David
Roon Nucleus+, Devilalet Expert 140 Pro CI, Focal Sopra 2, PS Audio P12, Keces P8 LPS, Uptone Audio EtherREGEN with optical fibre link to my router, Shunyata Alpha NR and Sigma NR power cables, Shunyata Sigma ethernet cables, Shunyata Alpha V2 speaker cables, Grand Prix Audio Monaco rack, RealTRAPS acoustic treatment.
Brisbane, Qld, Australia
