real-time waveform visualizer

https://wiki-fusion.win/index.php/Why_You_Need_a_Browser_Mic_Tester_for_Quick_Audio_Checks

I built a real-time waveform visualizer that turns audio input into a dancing line on screen, perfect for seeing music or voice patterns as they happen. It’s fascinating to watch the peaks and valleys shift with every note and syllable, giving a live, almost tactile feel to sound.