Holy Sonification Batman
We've been exploring techniques to 'visualise' infrasound signals. Sifting frequencies up to the audible range is an interesting alternative to graphical presentation. From Nathan's detection of the Tonga eruption (strictly Hunga Tonga–Hunga Ha'apai). This video is the primary pulse from Tonga, detected in Northern U.K. sped up 500x. (Thanks to https://sonify.readthedocs.io/en/latest/index.html for the base code. )
see: http://schoolphysicsprojects.org/projects/infrasound/infrasound.html