Mic to Speaker: Megaphone

Mic to Speaker turns your phone into a live microphone. Speak into the phone and your voice plays straight away through its loudspeaker, wired headphones or a Bluetooth speaker. Use it as a simple megaphone for a class, a tour group, a meeting or a band rehearsal. ONE BIG MIC BUTTON • Tap the mic to go live, tap again to stop • Hold-to-talk, like a walkie-talkie. Slide up to lock the mic on, tap to stop • Pocket mode: a black, touch-proof screen. Volume keys can work as the mic button • Live meters for the level going in and coming out • Keeps running with the screen off, with a notification and a Stop button • Home-screen widget QUICK SETUP • A 10-second check: stay quiet, then read one sentence • Sets gain, noise gate and Clear voice from what it hears, and tells you if you are too close, too quiet or the room is too noisy • The speaker stays silent during the check SOUND OUT, MIC IN • Phone speaker, wired headphones or a Bluetooth speaker • Phone mic, wired headset mic or USB mic, when plugged in • Bluetooth tools: keep the speaker awake, measure its delay, remember settings per speaker • Bluetooth adds some delay (often 0.1–0.3 s), so keep the speaker a few metres away FEEDBACK GUARD AND SAFE GAIN • Feedback (the squeal when a mic hears its own speaker) is detected and the tone is notched out • Safe gain check raises the gain step by step until the room starts to ring, saves the highest safe gain for that speaker and marks it on the gain slider • Clear voice, noise gate, keep-level and a 3-band tone control • Lower my music: other apps' music gets quieter while you talk • Gain from -6 dB to +24 dB PREMIUM • Echo and reverb: echo, karaoke, hall and stadium • Live voice effects: megaphone, walkie-talkie, robot and alien • Sirens and chimes • Recordings longer than 60 seconds • Keep the ringing tones found by Safe gain check blocked for the session • Unlimited sessions (free sessions stop after 10 minutes) • Monthly, yearly or one-time lifetime purchase through Google Play. Cancel any time in Google Play The live mic, output and mic choice, gain, feedback guard, Safe gain check, Quick setup, hold-to-talk and meters are free, with no ads. TIPS • Point the phone's mic away from the speaker: the further apart, the louder you can go • With a Bluetooth speaker, a wired headset mic works as a clip-on mic • No level on the meters? Another app may be using the mic SAFETY Turn the volume down before you start and raise it slowly. Keep the mic away from the speaker, or use headphones, to avoid feedback. Safe gain check never runs on headphones and caps its level. Loud sound close to your ears can damage hearing, so never hold the speaker to your ear. Only use the app where people know you are speaking, never to listen in on others. It is not a hearing aid or medical device. PRIVACY The mic is used only while you have switched it on, and the notification is shown the whole time. Audio is processed on your device. It is only saved when you record in the Record card, and it is never uploaded. Firebase Analytics and Crashlytics help us fix crashes and see which features are used; they never receive audio, and you can switch them off in Settings. No account. No sign-up. No ads.

Stability: fixed a crash when an ad screen was reopened after the app had been closed. Fixed a crash when opening the Premium screen.