# Unknown Audio **URL:** \ **Category:** General Discussions\ **Created:** [February 18, 2020, 4:14am UTC](https://forums.plex.tv/t/unknown-audio/544182 "2020-02-18T04:14:36Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![JasonNalley](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/jasonnalley/32/24210_2.png) [@JasonNalley](https://forums.plex.tv/u/JasonNalley)\ **Post date:** [February 18, 2020, 4:14am UTC](https://forums.plex.tv/t/unknown-audio/544182/1 "2020-02-18T04:14:37Z")
In fiddling with my media, I’ve apparently acquired/accumulated a lot of movies that have “Unknown” for the Audio Language now. I dunno whether I removed the tag, or it wasn’t there to begin with, or maybe running things through various softwares has lost it. However, I’d like to go through my library and correct the language tags for the audio so that when you filter by Audio Language, they come up correctly. Step one however, is identifying which movies they are so I can start changing the tags with tool nix, unfortunately, plex doesn’t have a “None” or an “Unknown” filter to help me out with this, does anyone know a quick way to identify all movies with an unknown or und flag? ---
**Author:** ![JuiceWSA](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/juicewsa/32/12253_2.png) [@JuiceWSA](https://forums.plex.tv/u/JuiceWSA)\ **Post date:** [February 18, 2020, 4:34am UTC](https://forums.plex.tv/t/unknown-audio/544182/2 "2020-02-18T04:34:09Z")
Googling was interesting, but it did come up with this: > **[jamesmacwhite/plex-audio-tracks](https://github.com/jamesmacwhite/plex-audio-tracks)** > > A shell script that will scan a Plex Media Server database for unknown audio tracks and assign a language code - jamesmacwhite/plex-audio-tracks Now, on the surface that sounds like exactly what you’re looking for. I did NOT read the fine print…lol Also - the forum is alive with these threads - mostly closed - but many offering snippets of ffmpeg/other commands to batch handle 'em once you’ve found 'em. I got tired of that search fairly quickly, but you may want to soldier on for a while. My Google ask was: plex how to find unknown audio perhaps you can invent a better one. ---
**Author:** ![JasonNalley](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/jasonnalley/32/24210_2.png) [@JasonNalley](https://forums.plex.tv/u/JasonNalley)\ **Post date:** [February 18, 2020, 4:42am UTC](https://forums.plex.tv/t/unknown-audio/544182/3 "2020-02-18T04:42:28Z")
yeh, I have the batch files for fixing the audio with the toolnix suite, I just couldn’t find a way to FIND the unknowns, lol… thanks, I will give it a look. ---
**Author:** ![JuiceWSA](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/juicewsa/32/12253_2.png) [@JuiceWSA](https://forums.plex.tv/u/JuiceWSA)\ **Post date:** [February 18, 2020, 4:45am UTC](https://forums.plex.tv/t/unknown-audio/544182/4 "2020-02-18T04:45:44Z")
A’ight… I wish you good fortune on the cure. I am fortunate in that the special damaged part of my brain that controls my OCD has ensured ‘most’ of what lives in my Plexiverse has been tagged already. If something were to suddenly happen to annihilate the happy villagers living in my head - by making everything unknown - I’m not sure I’d survive… 😃 ---
**Author:** ![JasonNalley](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/jasonnalley/32/24210_2.png) [@JasonNalley](https://forums.plex.tv/u/JasonNalley)\ **Post date:** [February 18, 2020, 4:49am UTC](https://forums.plex.tv/t/unknown-audio/544182/5 "2020-02-18T04:49:44Z")
Well, that link you provided says it’s for Unix/Unix-Like plex instances, so that was a bust… BUT, I did load up all of my files into media info, and while I was reading that page you gave me it finally loaded, and I exported it to csv file, loaded it into excel, and now it seems I have 245 movies (not bad when we’re talking out of ~3,000) that are unknown, now it’s just time for me to identify each language, toss the like-languages together in a folder, and run the batch script to add the language tags… shouldn’t be too terrible, even with sleep, food, and classes, I should have it finished by dinner tomorrow 😃 ---
**Author:** ![JuiceWSA](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/juicewsa/32/12253_2.png) [@JuiceWSA](https://forums.plex.tv/u/JuiceWSA)\ **Post date:** [February 18, 2020, 4:52am UTC](https://forums.plex.tv/t/unknown-audio/544182/6 "2020-02-18T04:52:40Z")
Well hush my mouth… a plan came together? UFB. I even have Xmedia Recode ‘trained’ to tag the video stream English (unless it’s Japanese or something) JUST IN CASE there are 608s aboard. Destroy the Unknowns BTW: I’d never forgive myself for wasting this opportunity to point out a glaring ■■■■■ in the general design: ![An Unknown You Can't Fix](https://global.discourse-cdn.com/plex/original/3X/c/c/cc4eeef2dcad70da3302ae7a95bfe3f96af842fd.jpeg) The Unknown You Can’t Fix! You know - Galactic Wars have been started over less. ---
**Author:** ![OttoKerner](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/ottokerner/32/10079_2.png) [@OttoKerner](https://forums.plex.tv/u/OttoKerner)\ **Post date:** [February 18, 2020, 10:32am UTC](https://forums.plex.tv/t/unknown-audio/544182/7 "2020-02-18T10:32:18Z")
Please peruse these threads. I’m sure there is something in there to give you at least an idea: > [@How to remove tag spam and set language in several MKV files at once](https://forums.plex.tv/t/how-to-remove-tag-spam-and-set-language-in-several-mkv-files-at-once/235537): > > Imagine you have ripped a tv show and the software of your choice has embedded nonsensical things into the ‘title’ tags missed to mark ‘forced’ subtitles as such added titles like ‘Surround 5.1’ to audio tracks (which is redundant, if you’re using Plex) missed to tag the language of audio and/or subtitle tracks Dragging every single episode file into MKVtoolnix and setting all those things right is certainly possible, but repetitive and annoying. If you deal with MKV files, you sooner or la… > [@Set Audio Language tag MP4/MKV](https://forums.plex.tv/t/set-audio-language-tag-mp4-mkv/114491): > > Hi this is a little tutorial about how set lenguage tags on mp4 and mkv files. If you don’t like to see AUDIO tag as “UNKNOWN” on your videos and go from this [image] to this [image] or this [image] to this [image] you just have to: Get [MKVToolNix](https://www.bunkus.org/videotools/mkvtoolnix/downloads.html "MKVToolNix") and [GPAC](https://gpac.wp.mines-telecom.fr/downloads/ "GPAC") both open source free an multiplataform. On Ubuntu: $ sudo echo “deb [http://www.bunkus.org/ubuntu/$](http://www.bunkus.org/ubuntu/%24)(lsb\_release -sc)/ ./” | sudo tee /etc/apt/sources.list.d/mkvtoolnix.list $ wget -q -O - [https://www.bunkus.org/gpg-pub-moritzbunk…](https://www.bunkus.org/gpg-pub-moritzbunkus.txt) > [@Solution for Audio: Unknown](https://forums.plex.tv/t/solution-for-audio-unknown/402270): > > So it really annoyed me to have lots of tvshows with ‘Unknown’ audio stream in my library, and I found out, Plex has serious problem with the .avi container. Since some of the really old tvshows only available in SD with XviD codec, I had to figure out a solution. The basic idea was to convert them into a compatible container. My choice was the .mkv. Found a script made by @ntrevena - thx a lot for them - and modified it a bit, since I didn’t want to reencode those files, only wanted to remux t… ---
**Author:** ![JuiceWSA](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/juicewsa/32/12253_2.png) [@JuiceWSA](https://forums.plex.tv/u/JuiceWSA)\ **Post date:** [February 18, 2020, 11:00am UTC](https://forums.plex.tv/t/unknown-audio/544182/8 "2020-02-18T11:00:55Z")
> [@OttoKerner](#): > > Please peruse these threads. I’m sure there is something in there to give you at least an idea: I’m pretty sure he did - those were the same ones I found. > [@JasonNalley](#): > > shouldn’t be too terrible, even with sleep, food, and classes, I should have it finished by dinner tomorrow 😃 Seems this issue is now a non-issue… The ‘Unfixable Unknown’, however - is still very real with no fix available - for anyone. 😉 ---
**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\ **Post date:** [May 18, 2020, 11:01am UTC](https://forums.plex.tv/t/unknown-audio/544182/9 "2020-05-18T11:01:10Z")
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