Playback issues with Topping DX3 Pro+ on Mac Mini after Tahoe update (ref#H8YOR9)

Support
1

What best describes your playback issue?

· Music doesn't start when I press "Play"

What type of Zone is affected by this problem?

· *Directly-connected Zones* are affected.

Does the issue affect all file formats?

· The issue affects *multiple/all* file formats.

Does the issue happen with local library music, streaming service music, or both?

· *Both streaming and local* *library* music are affected.

Do you encounter any playback errors with the "System Output" Zone?

· The System Output has *no problem*, it's only my other Zone.

How is the affected Zone connected to your RoonServer machine?

· Cable (USB, HDMI, SPDIF, etc.)

Is your device connected directly to the Roon Server via cable or over the network, or is it chained through another device (such as a streamer, Roon Bridge, or Roon Remote)?

· It is connected through a different device (e.g Rasberry Pi)

Does the device play audio from another source when using the same connection?

· The device has no problems with another audio source

Have you checked that Roon is whitelisted in any firewalls?

· I've checked the firewall and the issue remains

Is the device using the latest firmware as per the manufacturer?

· Firmware is up-to-date but the issue remains

Do you have an approximate timestamp of when the issue last occurred?

· roughly 11/07 17:01, I was trying to start the Talking Heads song "Love for Sale"

What are the make and model of the affected audio device(s) and the connection type?

· Topping DX3 Pro+ connected via USB

Describe the issue

Hello! I have a Roon Remote instance running on a Mac Mini M4 running Tahoe 26.0.1. The audio device is a Topping DX3 Pro+ connected by USB.

I'm fairly sure this only started after upgrading to Tahoe, but now pretty often when I go to play a track for the first time in a while, I'll get a "Failed to initialize audio device" or "Roon lost control of the audio device" and playback will be impossible until I power-cycle the DAC.

The relevant log lines would appear to be:

11/07 11:47:30 [Local 11/07 11:47:30] Trace: [DX3 Pro+] [raatclient] GOT [6] {"status":"DeviceInitFailed","message":"RAAT__OUTPUT_PLUGIN_STATUS_DEVICE_INIT_FAILED"}
11/07 11:47:30 [Local 11/07 11:47:30] Trace: [Office] [zoneplayer/raat] device init failed. stopping stream

It's set on exclusive mode, with no weird settings that I'm aware of.

Thanks in advance - I don't *think* this looked similar to the other Tahoe-related issues caused by network permissions, which is why I'm submitting a new support request rather than posting in the existing thread.

Describe your network setup

Everything is wired via ethernet apart from a couple of Bluesound Pulse Flexs (not the issue here). Deco TP-Link router.

2

Hello @toypadlock ,

Thanks for reaching out. Does this issue only occur when switching sample rates? If so, we have an existing thread regarding this, please confirm and we will merge your report into the thread:

As a workaround/test, you can try to set MUSE (Roon’s DSP) to upsample everything to one sample rate. We have a fix in testing for Early Access, and the fix should be deployed to Production with the next Roon release.

3

hello! so i hadn’t pegged that as the issue, but it only happens when starting a new album, and never in the middle of one. so this checks out - thank you! v glad to hear there’s a fix in the works.

4

Hi @toypadlock,

We’re sorry to hear you’re affected by this issue. As mentioned above, the team has a fix in the pipeline, although we haven’t yet released it. Please see the tracking thread that @noris has shared above, where the team will be releasing updates on our progress and announcing when the fix moves into #earlyaccess.

It requires additional up/downsampling in many cases, but you can prevent the initialization error by forcing Roon to a single sample rate using MUSE Sample Rate Conversion.

To ensure all responses relevant to this issue stay in one place, we’ll be closing this report and responding further on the main tracking thread.

Thank you for your patience.