Server Version#: 1.19.5.3112
Player Version#: 4.34.4
Hi
I’ve setup Plex on my older Synology DS213j, running the newest version of DSM. To use it play music on my Sonos setup.
It runs, I can play music. At least some of it.
All MP3s works fine, while only some FLAC files are able to play. Log snippet (Plex Media Server.log) of an example when it fails further down.
I guessing my NAS is not up to the task (see the log below), but I’m curious of two things:
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On Sonos, some FLAC files works fine, while other doesn’t. They can be from the same album. And some smaller files doesn’t work, while some bigger files do.
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When playing the same music files either through the plex web player or android plex app, the same files that fails on Sonos, plays without any issues.
Looking at the details of the different files, the bitrate doesn’t shed any light on the issue. I can see no pattern in what plays and what doesn’t. I must admit I only looked on few files.
The bitrate ranges from 450 - 1500. At first it actually looked like some of the files with a bitrate around 1400 - 1500 works, but those sub 1000 doesn’t. Looking at further files, didn’t support that theory.
I think a simple solution could be to convert the FLAC files to some “simpler”, maybe a more expensive solution could be to by a more powerful NAS. But that doesn’t help me to understand why in the current setup, it works/doens’t work like it does 
Any input or thoughts are most welcome.
Have a nice day.
Log example of playing that fails:
Aug 02, 2020 09:18:34.703 [0x4ccca450] DEBUG - Request: [127.0.0.1:37247 (WAN)] GET /music/:/transcode/universal/decision?hasMDE=1&partIndex=0&mediaIndex=0&directPlay=1 (6 live) TLS Signed-in Token (ViperJohnson)
Aug 02, 2020 09:18:34.707 [0x4ccca450] DEBUG - TranscodeUniversalRequest: using augmented profile Generic
Aug 02, 2020 09:18:34.707 [0x4ccca450] DEBUG - Downloading document http://127.0.0.1:32400/library/metadata/501?includeBandwidths=1&offset=-1&X-Plex-Incomplete-Segments=1&X-Plex-Session-Identifier=00-0E-58-CC-7A-18%3AD
Aug 02, 2020 09:18:34.708 [0x4ccca450] DEBUG - Auth: authenticated user 1 as ViperJohnson
Aug 02, 2020 09:18:34.730 [0x4ccca450] WARN - Streaming Resource: Bandwidth exceeded: 1250 kbps > 1000 kbps
Aug 02, 2020 09:18:34.731 [0x4ccca450] DEBUG - MDE: Selected protocol http; container: flac
Aug 02, 2020 09:18:34.732 [0x4ccca450] DEBUG - MDE: analyzing media item 482
Aug 02, 2020 09:18:34.733 [0x4ccca450] DEBUG - MDE: Bag End: Direct Playing due to no transcode profile
Aug 02, 2020 09:18:34.733 [0x4ccca450] DEBUG - MDE: Bag End: DirectPlay
Aug 02, 2020 09:18:34.734 [0x4ccca450] DEBUG - MDE: Bag End: selected media 0 / 482
Aug 02, 2020 09:18:34.734 [0x4ccca450] DEBUG - Streaming Resource: Calculated bandwidth of 1313kbps exceeds bandwidth limit. Changing decision parameters provided by client to fit bandwidth limit of 1000kbps
Aug 02, 2020 09:18:34.735 [0x4ccca450] DEBUG - Streaming Resource: Determining preferred transcode encoders through transcode only decision.
Aug 02, 2020 09:18:34.737 [0x4ccca450] DEBUG - Streaming Resource: Reducing playback quality for 952kbps stream bitrate: disable audio DS as 2147483647kbps is > the 952kbps available
Aug 02, 2020 09:18:34.739 [0x4ccca450] DEBUG - MDE: Selected protocol hls; container: mpegts
Aug 02, 2020 09:18:34.739 [0x4ccca450] DEBUG - MDE: analyzing media item 482
Aug 02, 2020 09:18:34.740 [0x4ccca450] DEBUG - MDE: Bag End: Direct Play is disabled
Aug 02, 2020 09:18:34.740 [0x4ccca450] DEBUG - MDE: Bag End: media must be transcoded in order to use the hls protocol
Aug 02, 2020 09:18:34.741 [0x4ccca450] DEBUG - MDE: Bag End: Audio Direct Streaming is disabled, so video’s audio stream will be transcoded
Aug 02, 2020 09:18:34.742 [0x4ccca450] DEBUG - MDE: Cannot direct stream audio stream due to profile or setting limitations
Aug 02, 2020 09:18:34.743 [0x4ccca450] DEBUG - MDE: Bag End: selected media 0 / 482
Aug 02, 2020 09:18:34.745 [0x4ccca450] DEBUG - Streaming Resource: Reached Decision id=501 codes=(MDE=3001,Not enough bandwidth for direct play of this item. Required bandwidth is 1250kbps and only 1000kbps is available. General=1001,Direct play not available; Conversion OK. Direct Play=3001,Not enough bandwidth for direct play of this item. Required bandwidth is 1313kbps and only 1000kbps is available. Transcode=1001,Direct play not available; Conversion OK.) media=(id=482 part=(id=509 decision=transcode protocol=hls streams=(Audio=(id=482 decision=transcode bitrate=258 encoder=aac channels=2 rate=44100))))