Forced Upsampling Type "deactivated"

Legacy versions MacOS
#1

Hi, I just downloaded a trial of the Mac version of Audirvana 3.5 and have it installed on a 2011 MacBook Air that I control through Screen Sharing from another Mac. The MBA is connected to a Topping D50s DAC and everything works great with Tidal, including MQA at 88/96 Khz.

i want to try upsampling. However, when I go into the Topping D50s menus, under Upsampling, it says Forced Upsampling Type : Deactivated. When I try to click on Deactivated, nothing happens. From reading around it seems that it should offer me a higher sampling rate or 2X. Do I have to turn something else on?

Sam

#2

Hello @tsammyc, do you mean when you want to enable upsampling in Audirvana you don’t have the menu that appears to select the mode you want to be in?

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#3

That’s correct. The menu never pulls down when I click around the “Deactivated” option including the little down arrow

#4

Have you tried to uninstall and install Audirvana again?

#5

Will try that next if there is no other possibility

#6

Perhaps you are trying to change the setting while a track is playing? Hit ‘stop’ first.

#7

@sridavid, that was exactly it. Thanks very much. Enjoying the 2x oversampling. Will certainly buy a license as the output is much clearer than the Tidal desktop app for Mac on my Topping D50s. I don’t hear as much difference on the Audioquest dragonfly

#8

Glad that worked! I have been using, and admiring, Audirvana on a Mac since maybe version 1.5? Currently I have the Denafrips Ares II, which I prefer to use NOS or with the DAC’s own oversampling with Audirvana’s deactivated. I find I have memory issues, even on a new MacBook Pro with plenty of RAM, using ‘Power of 2’ upsampling by Audirvana, while the DAC’s implementation is glitch-free and beautiful. That could be because the max rates on the Denafrips are 1411khz and 1536! But I also use Audirvana with the Border Patrol DAC, which reads 16 bits at best, and can only input files as high as 24/96. For that I use the ‘custom’ setting on Audirvana, downsampling DSD and higher rate PCM to 96 or 88.2, but leaving 44.1 and 48khz files as they are. The results are superb. 14-16 bits are plenty!

#9

I was in the market for a new DAC and was looking at the SMSL M400, which apparently is the latest thing in “natural sound” and will do the 2nd MQA unfold. However, with Audirvana I think I might hold on to the Topping for awhile longer now that I’m enjoying the clarity and low noise. My MacBook Air starts to stutter at above 192Khz but I don’t want to dedicate a faster machine for the purpose.

#10

Just starting out with much of this. My drop-down looks like this image, but why is “to DSD” an inactive option?

Thanks in advance.
-Greg

#11

Hi @greg88rx,

If your device does not support DSD then upsampling can’t be performed to DSD :wink: