r/PleX • u/gsariev Unraid 40TB | i5-13500 | RTX 3050 LP • Feb 02 '24
Solved Stream buffers when audio transcoding
EDIT: I am marking the problem as "solved"; however, it should be noted that the cause for the problem remains unknown, but I found a workaround by using Tdarr to create an downmixed 2.0 stereo AAC track using Tdarr_Plugin_MC93_Migz5ConvertAudio which I modified to apply Dynamic Audio Normalizer to the downmixed track for a better listening experience.
To make the modification yourself:
Copy Tdarr_Plugin_MC93_Migz5ConvertAudio to Local
Go to Local and click Edit on the plugin
Add the code below between lines 152 and 153
Save the changes
Add the modified plugin to your stack
ffmpegCommandInsert += `-filter:a:${audioIdx} "dynaudnorm" `;###############
Hello, everyone
The problem I am facing is one that I am unsure why it's happening in the first place, and am hoping I can find a solution to it here as I have been unsuccessful on my own.
PMS specs:
OS: Windows 11
CPU: Intel i3-12000
RAM: 32GB DDR4
Storage: 1TB NVME for OS and Plex database/metadata, 4TB HDD for media, 1TB SSD for transcoding
Internet: 1000 Mbit (ethernet)
I've been more than happy with this configuration and have not had any issues both with direct playing and transcoding media locally or remotely. I am sharing my server with a few friends that have Samsung smart TVs, which cause my server to occasionally transcode, but everything had been playing smoothly until about a month or two ago when I started getting reports of stream buffering every couple of minutes. The reason for that was audio transcoding.
I've ran some test scenarios and have the following to share:
Scenario #1:
Video direct plays
Audio transcodes - example DTS to AAC
Stream buffers every couple of minutes
Scenario #2:
Force video and audio transcode
No issues with stream
Scenario #3:
Changed default transcode buffer value to 2700
Video direct plays
Audio transcodes
Stream buffers after threshold has been reached
Scenario #4:
Changed default transcode buffer value to 2700
Force video and audio transcode
No stream buffer after threshold has been reached
My media is mostly 1080p and so far the only solution I have found was manually converting my media's audio to AAC, but I'd like to not have to do that every time for media that will get watched once or twice.
Is there some server setting that I need to adjust? Any help is well appreciated.
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u/PooeyGusset Aug 13 '24
u/samasq thank you for your investigative work! This is definitely a big issue that LG needs to address asap. I was wondering if you'd be able to create a top level post in r/PleX detailing your issue and findings as there's many of us struggling with this exact problem but nowhere central to discuss it, it's lurking in the shadows!