Can only upload MP3 audio, to upload others, I have to do the ffmpeg thing and I don’t know anyone who works at NASA who’ll help me with the instructions on how to do it
When I click libaries, it shows as having the avformat-55.dll ???
That sounds like you already have FFmpeg installed.
Let’s check that.
- If Audacity is running, exit Audacity.
- Launch Audacity.
- “Help menu >Diagnostics > Show Log”.
- Either save the log and attach it to your reply, or just copy the contents and paste into your reply.
21:03:52: Audacity 3.0.0
21:03:52: Trying to load FFmpeg libraries…
21:03:52: Trying to load FFmpeg libraries from system paths. File name is ‘avformat-55.dll’.
21:03:52: Looking up PATH environment variable…
21:03:52: PATH = ‘C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0;C:\windows\System32\OpenSSH;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\WINDOWS\System32\OpenSSH;C:\Program Files (x86)\QuickTime\QTSystem;C:\Users\nathc\AppData\Local\Microsoft\WindowsApps;’
21:03:52: Temporarily prepending ‘;’ to PATH…
21:03:52: Checking for monolithic avformat from ‘avformat-55.dll’.
21:03:52: Error: Failed to load shared library ‘avformat-55.dll’ (error 126: The specified module could not be found.)
21:03:52: Loading avutil from ‘’.
21:03:52: Error: Failed to load shared library ‘.dll’ (error 126: The specified module could not be found.)
21:03:52: Loading avcodec from ‘’.
21:03:52: Error: Failed to load shared library ‘.dll’ (error 126: The specified module could not be found.)
21:03:52: Loading avformat from ‘avformat-55.dll’.
21:03:52: Error: Failed to load shared library ‘avformat-55.dll’ (error 126: The specified module could not be found.)
21:03:52: Error: Failed to load FFmpeg libraries.
21:03:52: Returning PATH to previous setting: C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0;C:\windows\System32\OpenSSH;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\WINDOWS\System32\OpenSSH;C:\Program Files (x86)\QuickTime\QTSystem;C:\Users\nathc\AppData\Local\Microsoft\WindowsApps;
21:03:52: Error: Failed to find compatible FFmpeg libraries.
OK, thanks. You do not have a compatible version of FFmpeg installed.
Let’s install it.
(The full instructions are here: https://manual.audacityteam.org/man/installing_ffmpeg_for_windows.html but I’ll go through the salient points one post at a time.)
First is to download the correct file.
- Go to this page: https://lame.buanzo.org/#lamewindl
- Look for the text link: ffmpeg-win-2.2.2.exe
- Click with the Left mouse button on that text link to start the download.
- When the download is complete, ensure that the name of the downloaded file is: ffmpeg-win-2.2.2.exe
Write back when you have that file.
All sorted and done, I can now upload the intented audio. Thanks for your help.
Super.
Out of interest, could you tell us what the initial problem was?
I think like you said it must have been an incompatible version of FFmpeg installed. I could load mp3 audio so your guess is as good as mine.
If you’re a long time user of Audacity, you may well have had an older version of FFmpeg that is not compatible with current versions of Audacity.