Audacity 2.2.1 on Windows 64 bit
Installed the FFMPEG for Audacity per the wiki instructions
Audacity Edit → Preferences shows that the LAME and FFMPEG Libraries were located
When I attempt to import my mp4 that has 4 audio tracks, I receive an error:
“(filename).mp4” is an Advanced Audio Coding file. Audacity cannot open this type of file. You need to convert it to a supported audio format, such as WAV or AIFF.
This is a video I recorded using Open Broadcast Software, multi tracks to mp4, pretty standard stuff and I’ve seen other people on YouTube import this type of file into Audacity with no problems.
here is my error log, thanks for any help in advance, -Kurt
21:30:08: Audacity 2.2.1
21:30:08: Trying to load FFmpeg libraries...
21:30:08: mLibAVFormatPath ('C:\Program Files (x86)\AudacityPlugins\FFMPEG\avformat-55.dll') is not empty. Loading from it.
21:30:08: Looking up PATH environment variable...
21:30:08: PATH = 'C:\Program Files\Microsoft MPI\Bin\;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;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\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Windows Live\Shared;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\AMD\ATI.ACE\Core-Static;C:\Program Files (x86)\Common Files\Intuit\QBPOSSDKRuntime;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\;C:\Program Files (x86)\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\130\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft DNX\Dnvm\;C:\Program Files\dotnet\;C:\Program Files (x86)\Skype\Phone\;C:\Program Files\Git\cmd;K:\Program Files\nodejs\;C:\Program Files (x86)\Microsoft SQL Server\140\Tools\Binn\;C:\Program Files\Microsoft SQL Server\140\Tools\Binn\;C:\Program Files\Microsoft SQL Server\140\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\Client SDK\ODBC\130\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\140\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\140\Tools\Binn\ManagementStudio\;C:\Users\Kurtas\.dnx\bin;C:\Users\Kurtas\AppData\Local\Microsoft\WindowsApps;C:\Users\Kurtas\AppData\Roaming\npm;'
21:30:08: Checking that 'C:\Program Files (x86)\AudacityPlugins\FFMPEG' is in PATH...
21:30:08: Warning: FFmpeg directory 'C:\Program Files (x86)\AudacityPlugins\FFMPEG' is not in PATH.
21:30:08: Temporarily prepending ';C:\Program Files (x86)\AudacityPlugins\FFMPEG' to PATH...
21:30:08: Checking for monolithic avformat from 'C:\Program Files (x86)\AudacityPlugins\FFMPEG\avformat-55.dll'.
21:30:08: Error: Couldn't find symbol 'avutil_version' in a dynamic library (error 127: the specified procedure could not be found.)
21:30:08: Error: Couldn't find symbol 'avcodec_version' in a dynamic library (error 127: the specified procedure could not be found.)
21:30:08: avformat not monolithic
21:30:08: Loading avutil from 'avutil-52.dll'.
21:30:08: Loading avcodec from 'avcodec-55.dll'.
21:30:08: Loading avformat from 'C:\Program Files (x86)\AudacityPlugins\FFMPEG\avformat-55.dll'.
21:30:08: Returning PATH to previous setting...
21:30:08: Actual avutil path C:\Program Files (x86)\AudacityPlugins\FFMPEG\avutil-52.dll
21:30:08: Actual avcodec path C:\Program Files (x86)\AudacityPlugins\FFMPEG\avcodec-55.dll
21:30:08: Actual avformat path C:\Program Files (x86)\AudacityPlugins\FFMPEG\avformat-55.dll
21:30:08: Importing symbols...
21:30:08: All symbols loaded successfully. Initializing the library.
21:30:08: Retrieving FFmpeg library version numbers:
21:30:08: AVCodec version 0x373466 - 55.52.102 (built against 0x373466 - 55.52.102)
21:30:08: AVFormat version 0x372164 - 55.33.100 (built against 0x372164 - 55.33.100)
21:30:08: AVUtil version 0x344264 - 52.66.100 (built against 0x344264 - 52.66.100)
[b]21:30:08: FFmpeg libraries loaded successfully.[/b]
21:30:12: File name is K:\OBS Recorded Vids\2018-01-10 20-43-43.mp4
21:30:12: Mime type is *
21:30:12: Opening with libav
21:30:12: Open(K:\OBS Recorded Vids\2018-01-10 20-43-43.mp4) succeeded
21:30:14: Opening with libsndfile
21:30:14: Opening with liboggvorbis
21:30:14: Opening with libflac
21:30:14: Opening with lof
21:30:14: Error: Importer::Import: Opening failed.
21:35:36: File name is K:\OBS Recorded Vids\2018-01-10 20-43-43.mp4
21:35:36: Mime type is *
21:35:36: Opening with libav
21:35:36: Open(K:\OBS Recorded Vids\2018-01-10 20-43-43.mp4) succeeded
21:35:37: Opening with libsndfile
21:35:37: Opening with liboggvorbis
21:35:37: Opening with libflac
21:35:37: Opening with lof
21:35:37: Error: Importer::Import: Opening failed.
User error. Much like I did not read the directions for the forum and waiting for approval, I did not read the Audacity prompt that is showing the 4 tracks on my mp4
I actually have to pick one of the four tracks to import. I was not clicking on any track, and simply clicking OK, expecting that Audacity would then import all 4 tracks into one project. I must do them one at a time and that is perfectly fine.
I can’t be sure about that specific format, but with at least some multi-channel formats, you can select multiple channels to import at the same time. Give that a go and see if it works with that format.
This works. During mp4 import, Audacity prompts for which track to import. You can use shift or alt to select multiple tracks from that list and they open in a single Audacity project. Thank you Steve!