Issues with transcoding in Symfonium while using Plex

Support
1

Issue description:

A few months ago, I started having issues with transcoding in Symfonium while using Plex as the server. I’m not sure exactly how long ago, but roughly 9, 12, or 13 months? Unfortunately, I stopped using the app, even though I really like it, because I need transcoding to save mobile network data.

The issue is that certain songs randomly freeze a few seconds after starting and then restart, always after about 5 or 10 seconds. I use Plex on my internal network without any proxy server, meaning a direct connection. I have a properly configured domain on the network with a valid Let’s Encrypt certificate in PKCS #12 format.

All the players in my home are recognized as local by Plex, including Symfonium. In Plex activity logs and Tautulli, they always show as local. I don’t have any issues with any other players—Plexamp, Plex, or web browser.

I’m attaching some logs and videos, including the song used to generate the log files. I eagerly hope you can help find a solution.

Thank you.

Logs:

Upload description: marcosvfc

Additional information:

 

 

Reproduction steps:

 

 

Media provider:

Plex

Screenshots:

     

2

This is strange the server returns error 400 but it’s nowhere to be seen in Plex logs.

This sounds like a bug in Plex with session reusing when extracting amplitudes.

You can disable extraction of them in the settings to see if this workaround this.

3

Thanks for answering. Can you please guide me, I can’t find this option in Symfonium. Or should be in Plex?

4

In Symfonium Database settings.

5

I was looking for “amplitudes”. Instead, finded “waveforms”. Disabling any option related to this seems to have resolved the issue, but only when I start a new song. When I use the “continue listening” option and skip to the next song, the issue appears again. I have sent new logs; please check them. The issue also occurs if I seek a song to any timestamp while loading (you can see the grayed progress bar), the next one will always freeze at around 10 seconds.

6

This is the same issue, since you have pre caching, when you change track before precaching have finished, plex bug and close the reused session …

Since your server reproduce at 100% can you invite support at Symfonium dot app to join your plex server on that library so i can repro and try to find a workaround.

7

I do not expose my plex server directly to the internet. I’m able to access it through a VPN (that experiences the same issue like from local network). I’m using wireguard. I invited you and enabled plex relay. If plex relay doesn’t have enough reliability to make this happen, let me know.

8

I’m able to connect and reproduce with your server, due to network delays it fails a lot later but I can reproduce.

Please keep the access while I try to find time to figure a workaround if possible.

9

Ok, plex relay is really slow, sorry. Take your time, no worries. Thank you very much and I’m glad that you is helping me with this.

10

I added some attempts to workaround this, it happens a lot less, but there’s still cases if you skip fast or things like that. There’s not much I can do for now.

11

Thanks, Tolriq. So, this is a server-side issue, specifically related to the Plex server. Do you think there’s something that could be done, some configuration I can change to improve transcoding?

Does this workaround come with the next release?

Thank you for your support.

12

I don’t think you can workaround it’s just plex having issues with sessions and reusing the transcoding while not closed, not sure there’s a lot to do here.

And yes the small change will be on next release.

1 Like