ARC is not stable (very large library): what to expect from iPhone 17 Pro with 12 GB RAM, Test on Samsung S8

I may have a slightly different use case (in the car). Connectivity on the road is not as reliable as I’d wish. And I do not have an unlimited mobile data subscription anyway.
Two major things I focus on which I’ve already implemented.

  • 0 dropouts while being an the way (not only in the car)
  • Optimized (in-car) acoustic with dedicated measurments and FIR filters applied to the music files as kind of built-in DSP

So, I’m going the rather hard way selecting a subset of my local music files, applying several procedures to copies of them and storing them on some SD cards, separately for car, DAP with IEMs and DAP with mobile BT speakers.
I hate this kind of work, but I love the outcome whenever I’m away from home driving to the office, being on a train, on a plane or just completely disconnected on an island. For me that’s worth the effort :slightly_smiling_face:

It is, which is proof that Roon can do it. Plex is also like a fraction of the cost.

I completely agree with this possibility if it were a viable way to make the application stable with large libraries.

I’ve been using ARC with my iPhone 13 for the past four days, not intensively, but it’s always worked well when needed. Suddenly, this evening, it started shutting down on its own, while the phone was overheating. I’m reinstalling it now. Restarting the phone didn’t work, nor did the core (I thought the core wasn’t at 100% capacity somehow). The Roon team needs to figure out what exactly happens at a certain point that causes this to go wrong. In the meantime, I’ve added a number of disks of various types to both the NAS and Qobuz. My simple reasoning is: with a very large library, it can work on an older phone, or on a newer phone for days, then it should always work! Am I doing something wrong?

Continuing with some tests, this time even restarting and resyncing didn’t help. So I thought it was the 192/24 FLAC file’s fault, but even a 44/16 disc didn’t work, and again a few minutes after reinstalling it started overheating and the app closed. It’s really incomprehensible.

It doesn’t appear to be a reception issue, as the app closes on both Wi-Fi and data. The mystery continues.

Question: Is it possible to upload albums from one’s library to the cloud and then sync them for offline listening with ARC from there rather than from the nucleus?

Hi, which Cloud do you mean?

I’m looking at ARC settings on my iPhone and it gives me two connections options: cloud or roon server

Yes, ARC connects to the Roon cloud to work, but I think that’s all it’s supposed to do. I wonder if it’s the Roon cloud that’s causing the problems, making ARC work sometimes and not work on certain days, perhaps with large libraries or just in case.

This indicates the connection status to the Roon cloud (for identification) and to your home Roon server. So that you know where the problem is if there are connection failures

Thanks I use my phone for offline listening only. With my large library it has not been syncing to the nucleus any more and I’d like to add a few more albums to the phone. I’m wondering whether I can upload a few albums to iCloud and then download them to my phone

To eliminate the phone. Have you hard reset it into DFU mode and tried completely restoring the phone and (most importantly), set up as a new phone? Do a full backup so you can always restore it back should, you wish.

As a side note, I never restore from a back-up. Only iCloud settings are pushed down to the phone. Other than that, every iPhone I get is set up new. This way it doesn’t transfer any bugs or niggles.

I use a 14 Pro Max 256GB. The only time it gets hot is when I download music - which is to be expected. Using Tailscale, it’s rare I get issues connecting, unless I’m in a bad reception area. Having said that - never go by the reception bars, they are not standardised, so it’s hard to tell if you actually have a strong signal.

I know, you’ve said you haven’t had issues with the other two apps on the phone. So, I just wondered (if you’re bored), if this might be worth doing?

No, not with ARC. (Nothing prevents you from downloading them through iCloud and using VLC or some other music player, of course)

Interesting; will try that