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Intermittent playback problem for DSD files

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curtisls87:
I'm going to try a different DSD DAC on the Pi, and see what happens. Probably won't get to it until tonight or tomorrow morning.

DJLegba:
This could be a network issue. Have you tried rebooting your router?

curtisls87:
Sorry I haven't gotten back on this thread due to the holiday and family events. I believe this may be a problem with the iFi Nano DAC, although I don't have a conclusive answer just yet.

Per the request, I did try rebooting the router, and at first I thought that was it, but the problem returned shortly afterward.

What I have been able to do is to connect the iFi Nano DAC to an iMac I run Debian on and try it there. Lo and behold, it exhibits the same problem on the Debian machine that it does on the Pi. I will probably test it on a Mac, next. Then, I will also try it with direct DSD through ASIO on a windows machine.

More will be revealed.

curtisls87:
The Mac test has been run. Connected to a 2017 iMac, the iFi Nano DAC never failed once. It seems to be a combination of that DAC and the Linux machines (the Pi running ARM64 and the old iMac running Debian AMD64). I realize the Pi is not a powerful machine, but the iMac is not bad, and as previously mentioned, I can run PCM 24/192 files without issue. More testing to go.

curtisls87:
Okay, lots more testing done. I believe I've narrowed this down to the issue:
MC22 for Linux (both ARM64 and AMD64) have problems opening various DSD files over the network when connected to a library on a different computer - almost as if it can't grab the file.

What has me onto this is that I took 9 DSD albums (3 ISO, 3 with individual DSF files, and 3 with individual DFF files) and put them on a hard drive that I connected to the Pi by USB. I've tested constantly over several hours and never had a failure.

I don't believe the network itself is the problem because when I used the iMac/Debian machine, and could finally get a file to play, I could monitor the network traffic in and out of the machine and there was no issue with the file download for each song to play. It would show it was receiving the file at about 10MegaBytes (not bits) per second, which is plenty fast. Additionally, if it were a network problem, when I played it on the Mac, if networking was the problem then I should have seen it there. Also, since 24/192 files play fine, that also seems to show that network speed/latency is not the issue.

So, since the iFi DAC works with MC for Mac, using a remote library over the network, and since the DAC works on the Pi with a local library that leaves only the combination of the Pi working with a remote library as the culprit - and since it will work from time to time with no network issues, it seems to point to MC22 on Linux.

I'm open to any other thoughts, but at this point, it seems like it's a bug with MC22 for Linux.

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