I realize this is for Mac OS 10.4 or higher, so where is 10.4 or lower???

So Audacity downloaded OK. Also downloaded FFMPEG. Did the manual search for the file FFMPEG…avformat-*.dylib. What I found was …libavformat.dylib. Same?? Hit Open, OK,OK.

Download a karaoke Youtube video in MP4 format with 4k Video Downloader and with Activate 4k Video Downloader.

Each time a drag either one of those files I get error message (attachment).

MacOS Catalina Version 10.15.7, Intel Corei5
Screen Shot 2023-02-07 at 12.15.51 PM.png

Well. the screen shot did not show up but the error was this:

“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”

But I already download the FFmpeg library…

P.S. I meant I download with Youtube Downloader and 4k Video Downloader.

Installation instructions for FFMPEG for Windows, MacOS, and Linux can be found here: Installing FFmpeg