Help with importing MP4

Audacity Help Forum Windows
1

I downloaded the FFmpeg Library but it still says “You need to convert it to a supported audio format, such as WAV or AIFF”
… I saw an old post where someone has another FFmpeg library on their computer and it was messing with Audacity or something like that but Im not sure how to find something like this. The person helping also asked for a log so here is one. This is the log when I have audacity closed and then I try to import audio from Sony Vegas straight into Audacity.
Its kinda long_____

06:19:25: Audacity 2.2.2
06:19:25: Trying to load FFmpeg libraries...
06:19:25: Trying to load FFmpeg libraries from default path, 'G:\Programs\FFmpeg for Audacity\avformat-55.dll'.
06:19:25: Looking up PATH environment variable...
06:19:25: PATH = 'D:\Programs\Vegas Pro\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\QuickTime\QTSystem\;C:\Users\Nick\AppData\Local\Microsoft\WindowsApps;;G:\Programs\Vegas Pro\bdmux'
06:19:25: Checking that 'G:\Programs\FFmpeg for Audacity' is in PATH...
06:19:25: Warning: FFmpeg directory 'G:\Programs\FFmpeg for Audacity' is not in PATH.
06:19:25: Temporarily prepending ';G:\Programs\FFmpeg for Audacity' to PATH...
06:19:25: Checking for monolithic avformat from 'G:\Programs\FFmpeg for Audacity\avformat-55.dll'.
06:19:25: Error: Couldn't find symbol 'avutil_version' in a dynamic library (error 127: the specified procedure could not be found.)
06:19:25: Error: Couldn't find symbol 'avcodec_version' in a dynamic library (error 127: the specified procedure could not be found.)
06:19:25: avformat not monolithic
06:19:25: Loading avutil from 'avutil-52.dll'.
06:19:25: Loading avcodec from 'avcodec-55.dll'.
06:19:25: Loading avformat from 'G:\Programs\FFmpeg for Audacity\avformat-55.dll'.
06:19:25: Returning PATH to previous setting...
06:19:25: Actual avutil path G:\Programs\FFmpeg for Audacity\avutil-52.dll
06:19:25: Actual avcodec path G:\Programs\FFmpeg for Audacity\avcodec-55.dll
06:19:25: Actual avformat path G:\Programs\FFmpeg for Audacity\avformat-55.dll
06:19:25: Importing symbols...
06:19:25: All symbols loaded successfully. Initializing the library.
06:19:25: Retrieving FFmpeg library version numbers:
06:19:25:    AVCodec version 0x373466 - 55.52.102 (built against 0x373466 - 55.52.102)
06:19:25:    AVFormat version 0x372164 - 55.33.100 (built against 0x372164 - 55.33.100)
06:19:25:    AVUtil version 0x344264 - 52.66.100 (built against 0x344264 - 52.66.100)
06:19:25: FFmpeg libraries loaded successfully.
06:19:25: File name is E:\Recorded Stuff\2018-09-23 04-58-14.mp4
06:19:25: Mime type is *
06:19:25: Opening with libav
06:19:25: Open(E:\Recorded Stuff\2018-09-23 04-58-14.mp4) succeeded
06:19:28: Error: can't flush file descriptor 3 (error 5: access is denied.)
06:19:28: Opening with libsndfile
06:19:28: Opening with liboggvorbis
06:19:28: Opening with libflac
06:19:28: Opening with lof
06:19:28: Error: Importer::Import: Opening failed.
2

MP4 is a container format. The actual codecs used to encode the “audio / video / other” data could be almost anything (https://en.wikipedia.org/wiki/MPEG-4_Part_14).
FFmpeg appears to be loading correctly, but is unable to extract valid audio data from that file. That could be due to the encoding being a type that is not supported, or the file could be damaged. Perhaps you could export it from Sony Vegas in a supported format such as WAV (Microsoft PCM WAV).

3

Vegas should have a way of exporting to WAV. (Most video editors can export/render an audio file.)

… I saw an old post where someone has another FFmpeg library on their computer and it was messing with Audacity

I don’t think that should happen if you “install” FFmpeg for Audacity.

This is the log when I have audacity closed and then I try to import audio from Sony Vegas straight into Audacity.

Have you tried closing Vegas and then opening the MP4 file in Audacity?

4

This is what I ended up doing and then I just brought it back into vegas to cut up. Thank you for your help