If you are on Mac or Linux, go into a shell and cd to the installation directory and
find . -depth \( -name \*.wav -o -name \*.ogg -o -name \*.flac -o -name \*.au -o -name \*.aiff -o -name \*.aif -o -name \*.aifc -o -name \*.mp3 -o -name \*.m4a -o -name \*.mp4 \) -print | tee /tmp/r2020a_audio.txt
About 116 show up on my system. The major directories are
examples/audio/data
examples/deeplearning_shared/data
examples/dsp/data
examples/matlab/data
examples/phased/data
toolbox/audio/samples
toolbox/dsp/dsp
toolbox/dsp/dspdemos
with a few others showing up as well.
