Post #3352178
2026-06-19 07:26 UTC
@mlanger@mastodon.world @dec23k@mastodon.ie @tomsart@mastodon.social
There are microphones on the market that can record sounds below 20hz. Also with software such as audacity you might be able to change the pitch so other people can hear it. There also is spectrum analysis software out there to visualize anything you record.
Maybe get in contact with a local university as this equipment is most commonly used in research (as far as i know)
Replies (1)
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@dec23k@mastodon.ie 2026-06-19 11:21
@sebz@chaos.social @mlanger@mastodon.world @tomsart@mastodon.social In 2018, I installed an app called Infrasound Detector on what is now a very old (but still working) Android tablet. This tablet no longer gets OS updates (and it's not supported by Lineage / Replicant / postmarketOS) but the apps that are still on it all work offline. I just tested the app now, and it still works. https://play.google.com/store/apps/details?id=com.microcadsystems.serge.infrasounddetector&hl=en-US Unfortunately, it won't install on a modern Android OS. The developer last updated it in 2018. I'll check for free alternatives.