PulseAudio Equalizer
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Install requirements on Ubuntu
sudo apt install pulseaudio-equalizer pavucontrol
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Install requirements on Fedora
sudo dnf install pulseaudio-equalizer pavucontrol
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Temporary load modules
pactl load-module module-equalizer-sink pactl load-module module-dbus-protocol
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Run GUI frontend
qpaeq
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If qpaeq has no effect, install pavucontrol and change "ALSA Playback on" to "FFT based equalizer on ..." while the media player is running.
Load equalizer and dbus module on every boot
- Edit the
/etc/pulse/default.pa
and append the following lines:### Load the integrated PulseAudio equalizer and D-Bus module load-module module-equalizer-sink load-module module-dbus-protocol
Good description for Ubuntu 14.04 on webupd8.org