This is a script I made in 2017 but have recently uploaded to github.
Script & Config to utilize a Multiband EQ and switch between audio devices from the linux CLI.
- ALSA (Advanced Linux Sound Architecture)
- LADSPA (Linux Audio Developers Simple Plugin Architecture)
- mbeq (ladspa plugin)
Currently the script switches between a USB DAC & a USB Headset.
The USB DAC (speakers) has no EQ & the USB Headset has a Multiband EQ (based on frequency response graph).