Volumio as VM on Synology DS 918+ does not work properly

Help and Support
1

My previous setup: Raspi 2+ with USB DAC working properly
My new setup: Synology DS918+ with the same USB DAC and Volumio 2.873 for PC as a VM

Today, I wanted to integrate Volumio into my Synology NAS. Unfortunately, the sound is garbeled even though the same same setup with a Raspi works properly.

Any idea what could be wrong? Thank you.

2

Hi tdse, welcome to Volumio. :smiley:

I guess this is one for you to solve. Use in a VM is not part of the design of Volumio as a standard image. I’m sure it can work … in fact, I know it can, but your particular circumstances/Synology VM instance are unique to you.

“Any idea what could be wrong?” :rofl:

3

Is your DAC supported by Synology, as the host needs to pass through?
https://www.synology.com/en-global/compatibility?search_by=category&category=usb_dac_speakers&p=1

4

Yes, it is. It works with “Audio Station”. Audio Station is not running though.

5

then it will be difficult.
A lot of people reports that it works, same amount experience all kind of issues like interruptions, delays etc.

6

OK. Do you happen to know the exact setup of those who report that it works?

7

Should have been more precise.
The reporting doesn’t include Volumio, but a random Linux VM on Synology.

  • it should work if the NAS itself has the drivers for it, (virtual USB), or when used as pass through the VM should have the drivers.
  • Or there is lagging
  • The host is interfering with the USB port (as port can’t be shared)
  • The VM manager added a 2nd audio output
8

I get sound but in low quality (no lagging but background noise and some echo etc.). Is it possible to install the corresponding usb driver in the VM (QEMU)?

9

I think the drivers are already there, as you stated that it worked fine on a rPi. The Volumio image is the same. Seems (just a guess) that the host system interferes.
But playing with the drivers of Volumio, I can’t advise.