Audacity Forum

... a 64-bit Windows 10 installation that has been running Audacity 2.2.2 for a couple of months with no problems. Do I need to send the Diags Report? FFmpeg and LAME installations went OK. There was 1 error: Error 506 error MSB3721: The command "msgfmt -o "C:\Audacity-2.2.2\win\Release\Languages\af\Audacity.mo" ...

I downloaded The Good, The Bad, and The Ugly with ClipGrab and it opened fine in Audacity (with the default FFmpeg installation).

... post I had experimented with various compression specifiers. So far, it appears that on my test file: any value <= 21 fails any value >= 22 works FFmpeg uses a default value of "23" (according to my reading of the documentation). Apparently there's more involved than just the compression ...

GreyCoder wrote:Not sure what this means but it seems like a good clue

Documentation for FFmpeg is here: https://ffmpeg.org/ffmpeg.html

I should have made this more clear in my last post. Looking at the different FFmpeg command line parameters it appears that the key difference is in the compression specifier. The two different command lines were: ffmpeg -i ydxj0020.mp4 -vf scale=-1:1080 -crf ...

... Audacity to generate a know tone (500hz). Took a video of it with my YI 4K (non plus). That didn't work with Audacity either. So I tried using FFmpeg with various settings to see if I could compress it down to a small enough file size so I could upload it here. To my surprise I came up with ...

... 1) The MP4 files I normally work with are generated by my camera, which is the Samsung NX3000. 2) VLC correctly opens and plays the MP4 files 3) FFmpeg from the command-line can open the MP4 files, extract the audio WAV files, and place new WAV files into the MP4 file 4) The YouTube download ...

Both FFmpeg and VLC have no issues processing it. Does that mean you can convert it to WAV with FFmpeg (from the command line)? Problem solved? VLC should also be able to extract/convert the audio to WAV, but I've never used ...

I'm just doing first level possibilities. The Audacity update version only outran the FFMpeg version once or twice. In all cases, getting a matching set from the download page solves the issue. I know if you get stuck with one of these crosses it can seem like it happens ...

... mean is actually is. From your experience, I'd assume it's some variant that's throwing Audacity off." It sure seems to be a MP4 file. Both FFmpeg and VLC have no issues processing it. Also I included the output from FFmpeg, which should give details of the MP4 file information. I've also ...