Equalizer refuses to enable (Linux Mint 20)

[ghost]

OS: Linux Mint 20
Package version: v3.0.2

Running pulseaudio-equalizer-gtk then attempting to enable the equalizer fails, as shown below. I am using external speakers plugged into a laptop. I have done no further configuration with PulseAudio.

Output of pulseaudio-equalizer-gtk:

Getting settings...
Match!
Getting settings...
Match!
Match!
Applying settings...
Enabling persistence...
Current operation: saving configuration (enable-config)
-------------------------------------
Equalizer definition detected in file '/home/spm/.config/pulse/default.pa', deleting...
Using configuration file '/etc/pulse/default.pa' as source...
Equalizer setting saved (enable-config).
-------------------------------------
Disabling...
PulseAudio Equalizer/LADSPA Processor 4.0 (29.01.2017)
-------------------------------------
**Current operation: disabling equalizer**
-------------------------------------
Unloading & reloading stream-restore module...
Unloading module-ladspa-sink...
Moving active PulseAudio clients to ALSA sink (alsa_output.pci-0000_00_1b.0.analog-stereo)...
Transferring current mute (0) & volume (70%) to ALSA sink (alsa_output.pci-0000_00_1b.0.analog-stereo)...
-------------------------------------
**Equalizer status: [disabled]**
Equalizer configuration status: [enabled]
Equalizer plugin: [mbeq_1197/mbeq]
Equalizer control: [5.3,2.6,2.6,-8.5,-10.5,-11.2,-16.0,-14.7,-6.6,-5.7,-3.0,3.0,6.7,7.3,7.3]
NOTE: Using user-customized settings from '/home/spm/.config/pulse/equalizerrc'...
-------------------------------------
Applying settings...
Enabling persistence...
Current operation: saving configuration (enable-config)
-------------------------------------
Equalizer definition detected in file '/home/spm/.config/pulse/default.pa', deleting...
Using configuration file '/etc/pulse/default.pa' as source...
Equalizer setting saved (enable-config).
-------------------------------------
Enabling...
PulseAudio Equalizer/LADSPA Processor 4.0 (29.01.2017)
-------------------------------------
**Current operation: disabling equalizer**
-------------------------------------
Unloading & reloading stream-restore module...
Unloading module-ladspa-sink...
Moving active PulseAudio clients to ALSA sink (alsa_output.pci-0000_00_1b.0.analog-stereo)...
Transferring current mute (0) & volume (70%) to ALSA sink (alsa_output.pci-0000_00_1b.0.analog-stereo)...
-------------------------------------
**Current operation: enabling equalizer**
-------------------------------------
Unloading & reloading stream-restore module...
Loading module-ladspa-sink...
Transferring current mute (0) & volume (70%) to LADSPA sink (ladspa_output.mbeq_1197.mbeq)...
Setting ALSA sink (alsa_output.pci-0000_00_1b.0.analog-stereo) preamp (1.0x)...
Setting LADSPA sink (ladspa_output.mbeq_1197.mbeq) as default sink...
Moving active PulseAudio clients to LADSPA sink (ladspa_output.mbeq_1197.mbeq)...
-------------------------------------
**Equalizer status: [disabled]**
Equalizer configuration status: [enabled]
Equalizer plugin: [mbeq_1197/mbeq]
Equalizer control: [5.3,2.6,2.6,-8.5,-10.5,-11.2,-16.0,-14.7,-6.6,-5.7,-3.0,3.0,6.7,7.3,7.3]
NOTE: Using user-customized settings from '/home/spm/.config/pulse/equalizerrc'...
-------------------------------------

[stjerntind]

I needed to install swh-plugins before enabling.

[Mattevt]

I needed to install swh-plugins before enabling.

Thank you!