I keep getting this when trying to use my autotune plugin.
Help log:
18:03:26: Audacity 2.1.3
18:03:26: Trying to load FFmpeg libraries…
18:03:26: Trying to load FFmpeg libraries from default path, ‘C:\Program Files (x86)\Ffmpeg For Audacity\avformat-55.dll’.
18:03:26: Looking up PATH environment variable…
18:03:26: PATH = 'C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\Skype\Phone'
18:03:26: Checking that ‘C:\Program Files (x86)\Ffmpeg For Audacity’ is in PATH…
18:03:26: Warning: FFmpeg directory ‘C:\Program Files (x86)\Ffmpeg For Audacity’ is not in PATH.
18:03:26: Temporarily prepending ‘;C:\Program Files (x86)\Ffmpeg For Audacity’ to PATH…
18:03:26: Checking for monolithic avformat from ‘C:\Program Files (x86)\Ffmpeg For Audacity\avformat-55.dll’.
18:03:26: Error: Failed to load shared library ‘C:\Program Files (x86)\Ffmpeg For Audacity\avformat-55.dll’ (error 126: the specified module could not be found.)
18:03:26: Loading avutil from ‘’.
18:03:26: Error: Failed to load shared library ‘.dll’ (error 126: the specified module could not be found.)
18:03:26: Loading avcodec from ‘’.
18:03:26: Error: Failed to load shared library ‘.dll’ (error 126: the specified module could not be found.)
18:03:26: Loading avformat from ‘C:\Program Files (x86)\Ffmpeg For Audacity\avformat-55.dll’.
18:03:26: Error: Failed to load shared library ‘C:\Program Files (x86)\Ffmpeg For Audacity\avformat-55.dll’ (error 126: the specified module could not be found.)
18:03:26: Returning PATH to previous setting…
18:03:26: Error: Failed to load FFmpeg libraries.
18:03:26: Trying to load FFmpeg libraries from system paths. File name is ‘avformat-55.dll’.
18:03:26: Looking up PATH environment variable…
18:03:26: PATH = ‘C:\Program Files (x86)\Ffmpeg For Audacity;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static’
18:03:26: Checking that ‘’ is in PATH…
18:03:26: FFmpeg directory is in PATH.
18:03:26: Checking for monolithic avformat from ‘avformat-55.dll’.
18:03:26: Error: Failed to load shared library ‘avformat-55.dll’ (error 126: the specified module could not be found.)
18:03:26: Loading avutil from ‘’.
18:03:26: Error: Failed to load shared library ‘.dll’ (error 126: the specified module could not be found.)
18:03:26: Loading avcodec from ‘’.
18:03:26: Error: Failed to load shared library ‘.dll’ (error 126: the specified module could not be found.)
18:03:26: Loading avformat from ‘avformat-55.dll’.
18:03:26: Error: Failed to load shared library ‘avformat-55.dll’ (error 126: the specified module could not be found.)
18:03:26: Error: Failed to load FFmpeg libraries.
18:03:26: Error: Failed to find compatible FFmpeg libraries.
I’m using Windows 8.1