Voir aussi :

• Bruit blanc / Bruit rose
• Audacity

Exemple : 100 Hz - 5 secondes - sinusoïdes

ffmpeg -f lavfi -i "sine=frequency=100:duration=5" out.wav

Bruit rose

Generate 60 seconds of pink noise, with a 44.1 kHz sampling rate and an amplitude of 0.5

ffmpeg -f lavfi -i "anoisesrc=d=60:c=pink:r=44100:a=0.5"

Equaliser graphique temps réel

apt-get install pulseeffects lsp-plugins
# apt-get install easyeffects
apt install pulseeffects pulseaudio --install-recommends

Voir aussi : pulseaudio-equalizer (qpaeq) https://doc.ubuntu-fr.org/pulseaudio-equalizer

https://snapcraft.io/borger3

beep -f 457.9 -l 1000 -n -f 368.5 -l 3000

https://github.com/kevinboone/tonegen

https://manpages.ubuntu.com/manpages/impish/man1/signalgen.1.html

speaker-test

ffplay -f lavfi

https://ffmpeg.org/ffmpeg-filters.html#anoisesrc

https://sox.sourceforge.net/