usbRecognized - Speaker Test – Test Speakers Online Free | usbRecognized

Hey Product Hunt! 👋 We just shipped a new addition to usbRecognized — a free online Speaker Test that runs entirely in your browser. No downloads, no plugins, no signup. What it does: 🔊 Left/Right channel test — play a 440Hz tone to each speaker independently to verify stereo separation and detect dead channels 📡 Frequency sweep (20Hz–20kHz) — an 8-second continuous sweep across the full range of human hearing to catch driver or crossover issues 🎵 Bass test (60Hz) — checks your subwoofer and low-frequency drivers 🎶 Treble test (10kHz) — verifies your tweeters are working 🩺 AI-powered diagnostic summary — after each test, get targeted troubleshooting steps based on your results 📤 Report export — export as PDF, copy text, or generate a shareable URL (great for warranty claims or tech support) Why we built it: Ever plugged in new speakers, swapped cables, or joined a video call only to realize one channel was dead? We kept seeing people struggle to quickly verify their audio output was working — without digging through OS sound settings or installing bloated audio software. So we built a tool that takes 30 seconds and gives you a clear answer. Privacy-first by design: The tool only plays audio using the Web Audio API — it never records, uploads, or accesses your microphone. No permission dialogs, no data collection. Works on Windows, macOS, Linux, and ChromeOS in any modern browser. It also works with any audio output device your system recognizes — Bluetooth speakers, AirPods, gaming headsets, studio monitors, you name it. We'd love your feedback — especially on the diagnostic engine. What speaker problems do you run into most? What tests would you add next? 🙏