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@Mihonarium (published 2026-08-06) built Sonic Compass, a headphone app that…

Brief

Sonic Compass, created by @Mihonarium (2026-08-06), trains users to sense geographic north by playing a nondirectional cue every [2.300] seconds followed one second later by a directional sound from north. Unlike vibrating north-belts that only work while worn, the app's cue-then-answer method reportedly lets users internalize north and continue tracking it when the app is off; it's open-source and on iOS/Android (contact.ms/compass/).

Why it matters

@Mihonarium (published 2026-08-06) built Sonic Compass, a headphone app that initially played continuous directional sound configurable to [1..300] seconds to indicate geographic north.

Key details

  • The app's innovation plays a nondirectional cue every [2.300] seconds and then, one second later, a directional sound from north; the author claims this 'question then answer' pattern trains the brain to predict north and produces a lasting sense of direction that persists even when the app is off.
  • Sonic Compass is open-source, was first released for iOS and is now available on Android; project link: contact.ms/compass/. The author contrasts this with vibrating north-belts/ankle bracelets, which only provided a temporary sense while worn.
Cleaned source text

Can humans learn a new sense?

Some Australian tribes use cardinal directions in their speech: they talk about east and south instead of relative left or righ. They constantly track the directions.

There have been projects that gave people elsewhere the sense of cardinal directions: belts and ankle bracelets that vibrated from the direction of north. That worked well. As a side effect, that made it easier to know where places are relative to each other and improved the ability to navigate. But you had to constantly wear them; the moment you took them off, you lost the sense. You didn’t really acquire it, you just had it temporarily.

I decided to fix this.

Last year, I made an app that uses headphones to make the user hear a sound that comes from the direction of north. That alone did what wearable devices can do. You specify [1..300] seconds and become continuously aware of cardinal directions.

But then I did something better, that made the sense persist even when the app is off.

Instead of hearing a sound that appears to come from the direction of north, you hear a non-directional cue sound every [2.300] seconds; and then, one second later, a directional sound that comes from north.

So rather then constantly feeding the brain with answers — which create the feeling of north, but don’t persist — the app feeds it a question and then the answer immediately afterwards.

I originally made it for iOS, now it’s also available for Android.

contact.ms/compass/

(And it’s open-source, feel free to contribute!)

Link

Sonic Compass — Feel Where North Is

Sonic Compass plays sound from the direction of North. Your brain learns to predict it, building a lasting sense of direction — even with the app off.

contact.ms

Manifold (@ManifoldMarkets)

like what the hell. how even

— https://nitter.net/ManifoldMarkets/status/1935812804117971050#m