USB driver support not functioning in Roon Arc 1.0.56 on Android (ref#WK384L) [Roon Investigating]

[Gaspard_Thaller]

What’s happening?

· I'm having trouble with Roon ARC

What best describes your issue with ARC

· Other

Describe the issue

USB driver support in Roon Arc doesn't work any more in the 1.0.56 version of the Android app. It used to work in 1.0.55.

Describe your network setup

N/A

[connor]

Hi @Gaspard_Thaller,

Thank you for the report. Can you please, for due diligence, confirm the model of phone and DAC you’re using with USB?

Please also share a screenshot of the Signal Path and playback settings.

[Gaspard_Thaller]

Hi @connor

Sorry for the late reply.
Here is the info requested.

Phone : Xiaomi 11 lite 5G NE
USB DAC: Zorloo Ztella (ESS Sabre 9270C chip)

As I said, Roon Arc 1.0.55 works fine.
USB DAC is detected by the app:

Formats supported by the DAC are detected and lossless DSD playback can proceed:

With Roon Arc 1.0.56, none of this happens.
DAC is not detected, therefore the app falls back to Android default 48kHz USB audio support, and playback is lossy :

Hopefully you have all the details you need to investigate the root cause.

Cheers,
-gaspard

[benjamin]

Hey @Gaspard_Thaller,

Thanks for the report - we have a ticket in with development for further investigation. We’ll follow up with more information soon.

We appreciate your patience in the meantime.