I am using the latest Volumio 3 version on a RPi4B (4GB, if it matters). I have 2 USB DACs I use with the device, namely the Chord Mojo (1st version) & the Topping EX5, both of which can play back 768/32. When trying to play files processed using PGGB (at 705 or 768/32) these DACs display only 352.8 or 384 (i.e. half the resolution of the files). When I use an alternative program on the device, the DACs play at the native resolution and I can see the playback chain is bit-perfect.
I thought Volumio was able to play up to 768/32? Or is it possible using the default settings (I haven’t modified anything!), I have done something wrong?
I am going to ask this a third time now in hope of a straight answer as I am not going to keep paying for software which I will not be able to use to play these files.
I will rephrase it slightly - so to clarify, what is the maximum sample rate Volumio will play to a DAC which can handle 768/32?
In my experience it is 384. Could this question please be answered @volumio? Thanks.
Thanks for your reply here @DED. This kind of does and kind of doesn’t help in this situation. The PGGB files are rendered at either 32/705 0r 32/768 in either WAV or Wavpack. Volumio is literally the only software I have that does not play these files up to this resolution. The fact that similar software run on the same hardware (i.e. Moode) can play these also makes me suspect the issue is with Volumio. I am happy to raise this in the PGGB threads in other forums and can contact the dev of PGGB to mention your suggstion about the PGGB settings.
I did try to find some non-PGGB native files (or files I could upsample with Volumio) at this resolution to do an apples to apples comparison in terms of files that are by design encoded like this, but no luck! I’ll keep trying. I would imagine that if the upsampling/resampling algorithm is designed to work up to 768/32 then it would just be expected behaviour that I’d find it able to do this. No?
