# generate a sound file
ffmpeg -f lavfi -i "anoisesrc=color=brown" -filter:a "tremolo=f=0.1:d=0.9" -c:a pcm_s24le -ar 96k -ac 2 -t 60 seashore_good.wav

# play the sound file
ffplay seashore_good.wav

# damage the sound file
ffmpeg -i seashore_good.wav -c copy -bsf:a "noise=amount=-1" seashore_bad.wav

# play the damaged sound file
ffplay seashore_bad.wav

# show volume
ffplay -f lavfi "amovie=seashore_good.wav, asplit [a][out1]; [a] showvolume=c=VOLUME:w=1000:h=100:ds=log [out0]"
ffplay -f lavfi "amovie=seashore_good.wav, asplit [a][out1]; [a] showvolume=c=VOLUME:w=1000:h=100:ds=lin [out0]"
ffplay -f lavfi "amovie=seashore_bad.wav, asplit [a][out1]; [a] showvolume=c=VOLUME:w=1000:h=100:ds=lin [out0]"

# show waves
ffplay -f lavfi "amovie=seashore_good.wav, asplit [a][out1]; [a] showwaves=mode=point [out0]"
ffplay -f lavfi "amovie=seashore_good.wav, asplit [a][out1]; [a] showwaves=mode=p2p [out0]"
ffplay -f lavfi "amovie=seashore_good.wav, asplit [a][out1]; [a] showwaves=mode=cline [out0]"
ffplay -f lavfi "amovie=seashore_bad.wav, asplit [a][out1]; [a] showwaves=mode=cline [out0]"

# show spectrum
ffplay -f lavfi "amovie=seashore_good.wav, asplit [a][out1]; [a] showspectrum=mode=separate:color=intensity:slide=1:scale=cbrt [out0]"
ffplay -f lavfi "amovie=seashore_bad.wav, asplit [a][out1]; [a] showspectrum=mode=separate:color=intensity:slide=1:scale=cbrt [out0]"

# extract metadata
ffprobe -show_format -show_streams -print_format json seashore_good.wav
mediainfo seashore_good.wav
mediainfo --Details=1 seashore_good.wav

# delve deep into the file structure with "fq"
# see: https://github.com/wader/fq
fq . seashore_good.wav
fq d seashore_good.wav