Because of software patents, Audacity cannot include the FFmpeg software or distribute it from its own websites. If you only want to cause trouble, you will be banned from this forum. The optional FFmpeg library allows Audacity to import and export a much larger range of audio formats including M4A (AAC), AC3, AMR (narrow band) and WMA and also to import audio from most video files. If you genuinely want help, then we will do our best to help. Please note that I have received multiple complaints from Audacity community members about your apparent 'trolling', and you have received two warnings explaining that trolling is not acceptable on this forum. Why are you continuing to argue and complain rather than acting on his invitation?

jademan has indicated where you can get more help. If you are genuinely interested in building Audacity from the source code, your previous responses indicate that you need more help than is provided by the BUILDING.md document. It will take time for additional documentation to catch up. The documentation included in the source code is accurate and up to date, but is aimed primarily at developers. For uncompressed files, also try File > Import > Raw Data. Current development includes changes to the build system. Hi Audacity has recently (Im not sure when exactly) stopped being able to import / load some wav files I get a window on screen 'Audacity did not recognise the type of file MONO-001.WAV. The Audacity app is being actively developed. Is there any particular reason there has to be a chatroom on how to compile it instead of a functioning guide?

Audacity ffmpeg 4