Hello,
I had the version 2.3.3 and followed the exact instructions for downloading and installing the FFmpeg library but I could not find the avformat-55.dll file anywhere. It told me that library was not found even though I saved it to the suggested place. I also searched for the exact file in my folders but the installed folder apparently didn’t even contain anything by the name of “avformat-55.dll”.
I tried again, using the zip format. Same results, library not found.
I installed the newest version of Audacity then, the 2.4.1. I deleted al the previously installed FFmpeg stuff, even checked by searching for it in the Windows tab. Then I downloaded the .exe again and tried the whole process anew. Sadly, I still have the same results and when I look into the actual folder, I cannot find the “avformat-55.dll” thing either, o I guess I cannot blame Audacity for not finding it. Though, now I am not sure what to do next. I looked through the questions there and none of them quite helped me.
When I open the log in the diagnostics section, it says:
23:16:52: Audacity 2.4.1
23:16:52: Trying to load FFmpeg libraries…
23:16:52: Trying to load FFmpeg libraries from system paths. File name is ‘avformat-55.dll’.
23:16:52: Looking up PATH environment variable…
23:16:52: PATH = ‘C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\WINDOWS\System32\OpenSSH;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\WiFi\bin;C:\Program Files\Common Files\Intel\WirelessCommon;C:\Users\Kači-Marky\AppData\Local\Microsoft\WindowsApps;’
23:16:52: Checking that ‘’ is in PATH…
23:16:52: FFmpeg directory is in PATH.
23:16:52: Checking for monolithic avformat from ‘avformat-55.dll’.
23:16:52: Chyba: Nelze načíst sdílenou knihovnu ‘avformat-55.dll’ (chyba 126: Uvedený modul nebyl nalezen.)
23:16:52: Loading avutil from ‘’.
23:16:52: Chyba: Nelze načíst sdílenou knihovnu ‘.dll’ (chyba 126: Uvedený modul nebyl nalezen.)
23:16:52: Loading avcodec from ‘’.
23:16:52: Chyba: Nelze načíst sdílenou knihovnu ‘.dll’ (chyba 126: Uvedený modul nebyl nalezen.)
23:16:52: Loading avformat from ‘avformat-55.dll’.
23:16:52: Chyba: Nelze načíst sdílenou knihovnu ‘avformat-55.dll’ (chyba 126: Uvedený modul nebyl nalezen.)
23:16:52: Chyba: Failed to load FFmpeg libraries.
23:16:52: Chyba: Failed to find compatible FFmpeg libraries.
(It’s in Czech so I am sorry for that but hopefully the number of the error is enough)
I tried to include as much information as I could about this problem so if there is anything else you need to know, I’ll be happy to provide it.
Thank you for reading this and for any imput you might have on this - it’s beginning to feel really tiresome to try converting all the wav and m4a formats elsewhere…
Thanks again and have a nice day
M