The father of the bride stepped up to the podium, tapped the microphone twice (as tradition demands), and began his carefully rehearsed speech about his daughter's childhood.

Three words in, the room erupted with a piercing 2.4 kHz shriek that made every guest simultaneously wince, cover their ears, and reach for their wine glasses. The DJ frantically grabbed the mixer faders, but in his panic, he pushed them UP instead of down.

The feedback escalated into what one guest later described as 'the sound a banshee makes when it stubs its toe.' The flower girl burst into tears. The groom's grandmother removed her hearing aids with the calm efficiency of someone who'd seen two world wars. The wedding photographer captured the exact moment the father-of-the-bride's expression went from 'proud dad' to 'man questioning all life choices.'

The DJ eventually found the right fader, but by then the father had lost his place in the speech, the ice sculpture was vibrating, and the bride was giving her new husband a look that said 'if you don't fix this, we're getting an annulment.'

The Moral: A 30-second ring-out analysis with SonaVyx's feedback detection would have identified that 2.4 kHz resonance before anyone picked up a microphone. The problem detector flags feedback-prone frequencies automatically — no wedding disasters required.