Roon does not read ACC files

Doing the same, I see:

grafik

Version 3.3.6 is the system default one that doesn’t support AAC.

Note: ffmpeg version 3.3.6 isn’t available from the site you linked, not even when following the link to old releases.

Please try installing a user supplied version of ffmpeg again. You can use the instructions (watch the video) found in the post below from the thread that BrianW already linked to:

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