No sound with AAC encoded audio

Server Version#: 1.26.2.5797 (FreeNAS 11)
Client Version#: 1.20.2.3110.6f190192 (Plex HTPC)
Platform Version#: 10.0.17763

OS: Win10x64
GPU: Nvidia GTX 1060
AVR: Denon X3300W
TV: LG OLED65C6P

HDMI connections throughout. No other audio output devices.

Issue: When playing videos with AAC audio, there is no sound output detectable. Other audio formats (AC3, Dolby, DTS, etc) play just fine as passthrough audio. Other players such as Kodi, JRiverMC or MPC-HC output AAC audio just fine.

So, is there a setting either in the PMS or P-HTPC that I am missing in order to get decoded AAC audio to my AVR?

This is going to require logs to diagnose further. Additionally is it only AAC or all non-passthrough codecs (try MP3 for example)?

Perhaps a hint as to how to acquire those logs?

Also, I am not sure if I have any videos that use MP3 as a codec.

The first hit in a google search for Plex HTPC Logs is https://support.plex.tv/articles/plex-htpc-logs/

Alright. I have a Plex HTPC log.
Opened the app, played a video with AAC audio. Stopped the player. Exited Plex HTPC.
What info am I looking for that could help with this issue?
Also, tried playing a video with MP2 audio. Same result, no audio.

Just attach the logs to your reply here so @gbooker02 can have a look at it.

Plex HTPC.log (478.2 KB)

I see in your logs some instances where audio-only files are being played. Were you navigating to TV shows with theme music set to play? (Settings → Experience → Theme Music). If so, did you hear it?

Actually, now that you mentioned it, theme music used to play when I navigated to TV shows, but now it is not.

What happens if the TranscodeToAC3 is set to false in the plex.ini file? If it is set to true, and there is a list of passthrough codecs, will Plex transcode the non-passthrough audio to AC3?

I find this line in my plex.ini file, and I want to set TranscodeToAC3 to true:
{"name":"wasapi/{dc9873dc-d9e9-4aac-934b-48a2f424b396}","description":"DENON-AVR (NVIDIA High Definition Audio)","present":true,"lastPresent":"2022-07-01T20:45:08.952Z","kind":2,"transcodeToAC3":false,"passthroughCodecs":["ac3","eac3","truehd","dts","dts-hd"],"channelLayout":"7.1"}

Also, there is this line:
{"name":"auto","description":"Autoselect device","present":true,"lastPresent":"2022-07-01T20:45:08.952Z","kind":0,"transcodeToAC3":false,"passthroughCodecs":}

Uninstalled and re-installed Plex HTPC. Everything works fine now. Still have no idea what the problem was.

:frowning_face:

Glad you solved it. Given that an uninstall/install corrected it, it sounds like you may have had a corrupt file or something.

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