FFMPEG file installed, but audacity won't open .mp4 file (v.3.0.1 Release)

Help for Audacity on Windows.
Forum rules
ImageThis forum is for Audacity on Windows.
Please state which version of Windows you are using,
and the exact three-section version number of Audacity from "Help menu > About Audacity".


Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
Post Reply
Waveline
Posts: 1
Joined: Wed Jun 09, 2021 4:28 pm
Operating System: Windows 10

FFMPEG file installed, but audacity won't open .mp4 file (v.3.0.1 Release)

Post by Waveline » Wed Jun 09, 2021 4:56 pm

Hello! So I have just saved and remuxed a video from OBS studio, in the past I have already done this and audacity has imported the remuxed file (mp4). Just installed audacity on a new system and installed FFMPEG v.2.2.2, but audacity can't seem to open the mp4 file. I have reinstalled the FFMPEG several times, restarted audacity and even automatically/manually detected the "avformat-55.dll", it still does not work.

Error message: ".mp4" is an Advanced Audio Coding File. Without the optional FFmpeg library, Audacity cannot open this type of file. Otherwise you need to convert it to a supported audio format, such as WAV or AIFF.

jademan
Forum Crew
Posts: 1415
Joined: Fri Jul 17, 2009 10:11 pm
Operating System: Windows 10

Re: FFMPEG file installed, but audacity won't open .mp4 file (v.3.0.1 Release)

Post by jademan » Thu Jun 10, 2021 12:20 pm

1) I would start by downloading the most recent version of Audacity from here: https://www.audacityteam.org/download/

2) When you installed FFMPEG, did you download the .zip or the .exe file?

3) Try to open your .mp4 file again, then post the contents of your Audacity log. Help > Diagnostics > Show Log.

See also this related issue: viewtopic.php?f=46&t=118326

Post Reply