PulseEffects

Limiter, compressor, reverberation, equalizer and auto volume effects for Pulseaudio applications. Presets here https://github.com/JackHack96/PulseEffects-Presets with Boosted, Perfect EQ and Bass Enhancing + Perfect EQ.

Installation under Ubuntu:

sudo add-apt-repository ppa:mikhailnov/pulseeffects -y
sudo apt update
sudo apt install pulseeffects pulseaudio --install-recommends

Restart your session/system to avoid "Speicherzugriffsfehler" :-)