DeHowl stops microphone feedback before it howls and keeps voices clear on any PA. Built for worship teams, AV volunteers, schools and live-sound crews, it listens to your room and cancels feedback in real time, so you can push the mic hotter without the ring. STOP FEEDBACK, AUTOMATICALLY A predictive engine learns how sound travels from your speakers back into the mic and cancels feedback before it can build gaining you real level without the hollow, notched out tone. An automatic bank of up to 24 adaptive notches stands by as an instant safety net, and the on-screen display now shows each active frequency with a calibrated dB depth scale. CLEAR, CONSISTENT VOICES A full vocal-clarity chain clarity, de-esser, auto leveler, presence and a brick-wall limiter keeps speech intelligible and protects your PA and everyone's hearing. ONE TAP FOR ANY ROOM Not a sound engineer? Tap a Quick Setup for your situation Speech/Sermon, Live Singing, Handheld Mic, Headset/Lapel and everything is set sensibly in one tap. Save your own presets for next time. A friendly Welcome guide and an in-app Help button explain everything in plain language. WORKS WITH YOUR WHOLE RIG Use any class-compliant USB audio interface, or the built-in mic to try it out. DeHowl keeps running even when the screen turns off. On Mac it's a native app (and AU/VST3 plugins); on iPhone and iPad it works with your interface in portrait or landscape. Everything runs on your device — your audio never leaves it. IN YOUR LANGUAGE English, Français, Español, Português and Deutsch. No subscription. Buy once, own it. HOW TO TEST 1. Launch DeHowl and allow microphone access when prompted. 2. Click "Audio Devices" (top control row) and choose an input and output. The built-in mic and speakers are fine for testing. 3. From the "Venue" menu, choose "Conference Room" this sets the controls for a typical room in one tap. 4. Click "AFC Predict" to turn it on (it highlights green). Speak into the mic for ~15–30 seconds. The status line next to it will change from "AFC: learning the room..." to "AFC: cancelling X dB" — that confirms the feedback cancellation is running in real time. 5. Optional: turn on "Vocal Clarity" and "Limiter", and watch the "ACTIVE NOTCHES" panel at the bottom populate if any feedback tones occur. NOTES - Best experienced with an external USB audio interface and a real PA, but the Mac's built-in mic/speakers are enough to see the app working. - Microphone access is required to function. If access is declined, the app still opens normally but cannot process audio (this is expected). - If the status shows "AI: needs 48000 Hz!", set the device sample rate to 48 kHz in the Audio Devices panel. Contact: info@shamaaps.com