Ian @starfishprime@physics.social

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

Microbarometer
a new opensource project . ~1Pa resolution and 0.4Pa noise threshold based on a digital, i2c enabled absolute pressure sensor interfaced with a R.Pi providing signal processing, data storage in .mseed format, plotting and uploading. see http://schoolphysicsprojects.org/projects/microbarometer/microbarometer.html