Megafon

You don’t need to carry a wired microphone to make an announcement. Megafon works like a walkie-talkie: hold the button to talk, release to stop. In the workshop, in the field, in the schoolyard, or in the kids’ games.

Besides your natural voice there are seven effects: deep, thin (helium), robot, alien, echo, phone, and police. In police mode a siren plays underneath, ducks automatically when you speak, and your voice comes through a radio filter; every press starts with a short radio crackle.

The audio path is built for low latency: in-app delay is down to 10-20 milliseconds, and on LE Audio capable devices the lowest-latency Bluetooth route is selected automatically. Echo and noise suppression are on. The TALK button pulses with your actual level, so you can see your voice is going through despite Bluetooth delay.

The microphone is on only while the button is held. Nothing is recorded or sent anywhere; the app does not even have internet permission.