Acoustic Freshness Tester — Live Live — uses your microphone Acoustic Freshness Tester Hold your phone or laptop mic near the fruit and tap it with a knuckle or spoon. This listens continuously, detects the tap by its amplitude spike, and runs a real FFT on the sound to find the resonant frequency — no simulated data here. Testing Watermelon Apple Start listening Mic off Trigger sensitivity 5 — medium Manual capture (if auto-trigger misses) Average next 3 taps Live microphone input trigger threshold Live frequency spectrum magnitude last detected peak Press "Start listening" and allow microp...
