«Audio is too good?»
DL (save as) https://raw.githubusercontent.com/tutacat/audio-badify/master/audio-badify.sh
run bash audio-badify.sh or zsh audio-badify.sh
audio-badify [-m n] <input> <output>
-h --help Print this help.
-m --mode Select badify mode, currently 1 (22.5Khz), or 2 (8Khz).
--exec Pass an ffmpeg executable
-y Make ffmpeg assume yes (Pass -y for overwrite, etc)
You can make audio files sound bad with these ffmpeg args
-ar 22050 -b:a 1k
or
-ar 8000 -b:a 100