# Failed to Encode Bank : External Encoder Dynamic Library Not Found

**URL:** <https://qa.fmod.com/t/failed-to-encode-bank-external-encoder-dynamic-library-not-found/20503>\
**Category:** FMOD Studio\
**Created:** [August 6, 2023, 12:13am UTC](https://qa.fmod.com/t/failed-to-encode-bank-external-encoder-dynamic-library-not-found/20503 "2023-08-06T00:13:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Vunlo](https://avatars.discourse-cdn.com/v4/letter/v/35a633/32.png) [@Vunlo](https://qa.fmod.com/u/Vunlo)\
**Post date:** [August 6, 2023, 12:13am UTC](https://qa.fmod.com/t/failed-to-encode-bank-external-encoder-dynamic-library-not-found/20503/1 "2023-08-06T00:13:22Z")

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After upgrading to 2.02.16 I get this issue with only one of my banks.

Error processing C:/Users/_ **/wkspaces/Audio/VA/MS09/A\_MS09-01-53-UNKNOWN\_** _\*.wav (Could not find encoder library ‘libatrac9.dll’, please copy it from the Sony PS4 or PS5 SDK to the application directory.)

Ive added the Libatrac9.Lib to C:\Program Files\FMOD SoundSystem\FMOD Studio 2.02.16 but I still get this issue.  
Is this the incorrect lib file or is it in the wrong location?

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**Author:** ![Leah\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/leah_fmod/32/3685_2.png) [@Leah\_FMOD](https://qa.fmod.com/u/Leah_FMOD)\
**Post date:** [August 7, 2023, 12:50am UTC](https://qa.fmod.com/t/failed-to-encode-bank-external-encoder-dynamic-library-not-found/20503/2 "2023-08-07T00:50:09Z")

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Hi,

You need to copy the `.dll` to the FMOD Studio install directory, not the `.lib`. Please try that and see whether it resolve the issue.