Sleeptracker · survival spike

Phase 0. Stores no audio — it measures whether the browser keeps capturing while your phone is locked, and what your bedroom's noise floor is.

BaselineNothing but the recorder. Lock the phone and see what the OS does. Run this first — it is the measurement. Keep-aliveAlso registers a media session with a silent audio loop, so the OS treats the page as active playback. Try this if baseline died. Screen onHolds a wake lock so the screen never sleeps. The fallback you said you don't want — here to confirm capture itself works.

Plug the device in. Recording survives a locked screen only if the OS allows it — that is the whole question.

Recorded on another device? open a saved JSON — reports render entirely client-side, so a night from the phone opens here unchanged.