# \[Steam audio\] Error loading Phonon.dll plugin **URL:** \ **Category:** FMOD Studio\ **Created:** [October 14, 2019, 2:23pm UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134 "2019-10-14T14:23:41Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Kosmo](https://avatars.discourse-cdn.com/v4/letter/k/f07891/32.png) [@Kosmo](https://qa.fmod.com/u/Kosmo)\ **Post date:** [October 14, 2019, 2:23pm UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134/1 "2019-10-14T14:23:41Z")
Hello, We are trying to use steam audio spatialiser for our project but seem to be unable to load the plug in on Fmod Studio 1.10.10. Already copied following files into the project plugins folder: `phonon.dll`, `phonon_fmod.dll`, `phonon_fmod.plugin.js` The plugin looks fine but produces no audio: 15:15:02 fmod\_pluginfactory.cpp(583), PluginFactory::loadPlugin(): No FMOD symbols found in dynamic library ‘D:/Game Dev/Project name/Assets/Fmod-RON/Plugins/phonon.dll’ 15:15:02 Error loading plugin D:/Game Dev/Project name/Assets/Fmod-RON/Plugins/phonon.dll: Error loading file. Using x64 version of a plugin. [Log.txt](https://qa.fmod.com/uploads/short-url/4VPWSsmAkCqy6qo6BQkXwUfOboa.txt) (4.7 KB) Full logs here attached. ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [October 21, 2019, 12:20am UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134/2 "2019-10-21T00:20:37Z")
This means that it is not a plugin that FMOD recognizes, make sure you are using the correct plugin files from [https://valvesoftware.github.io/steam-audio/downloads.html](https://valvesoftware.github.io/steam-audio/downloads.html). ---
**Author:** ![amaribrahim](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/amaribrahim/32/1109_2.png) [@amaribrahim](https://qa.fmod.com/u/amaribrahim)\ **Post date:** [April 22, 2020, 4:18am UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134/3 "2020-04-22T04:18:19Z")
I am also having this problem. Versions FMOD 2.0.08 and Steam Audio beta-18. ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [April 28, 2020, 12:24am UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134/4 "2020-04-28T00:24:13Z")
It looks like the Steam Audio plugin is only made for FMOD 1.10 at this point and will not work with 2.0 or 2.1. You will need to contact Valve if you would like them to update it. ---
**Author:** ![chomaco](https://avatars.discourse-cdn.com/v4/letter/c/c4cdca/32.png) [@chomaco](https://qa.fmod.com/u/chomaco)\ **Post date:** [February 8, 2021, 9:20pm UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134/5 "2021-02-08T21:20:23Z")
Tried using FMOD Studio 1.10 and 2.1 as well, still the same message. Steam Audio FMOD Studio Plugin 2.0-beta.19 FMOD CONSOLE: ``` 21:59:12 fmod_pluginfactory.cpp(583), PluginFactory::loadPlugin(): No FMOD symbols found in dynamic library 'C:/Users/PC/Documents/FMOD Studio/TestSceneOldFmod/Plugins/phonon.dll' 21:59:12 Error loading plugin C:/Users/PC/Documents/FMOD Studio/TestSceneOldFmod/Plugins/phonon.dll: Error loading file. ``` Other plugin phonon\_fmod seems to work just fine. I also noticed that when I set Occlusion Mode in Steam Audio Spatializer to disabled and delete Steam Audio Mixer Return on Master Bus I can hear audio event. ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [February 11, 2021, 2:27am UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134/6 "2021-02-11T02:27:00Z")
You only need to add “phonon\_fmod” to the list of plugins as mentioned in their docs: [https://valvesoftware.github.io/steam-audio/doc/phonon\_fmod.html#adding-steam-audio-to-fmod-studio-in-unity](https://valvesoftware.github.io/steam-audio/doc/phonon_fmod.html#adding-steam-audio-to-fmod-studio-in-unity) ---
**Author:** ![loxagos\_snake](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/loxagos_snake/32/4358_2.png) [@loxagos\_snake](https://qa.fmod.com/u/loxagos_snake)\ **Post date:** [December 10, 2022, 10:53pm UTC](https://qa.fmod.com/t/steam-audio-error-loading-phonon-dll-plugin/15134/7 "2022-12-10T22:53:37Z")
Just throwing it out there for anyone who gets it in the future, because it happened to me as well: It might be your project path being a) too long b) residing in a OneDrive folder that trips FMOD and it can’t load the symbols. Mine was in a rather long OneDrive path, and moving it to a shorter one inside on of the HDDs solved it.