
What is Sound-Tester?
Free, browser-based audio testing tools to instantly check audio latency (Bluetooth lag), headphones, speakers, and microphones. No downloads or sign-ups. Just open the site and run tests like stereo balance, frequency sweeps, speaker clarity, microphone recording and playback, and a decibel meter. All audio processing happens locally in your browser, so nothing is uploaded to a server. Works on phones, tablets, and desktops. Simple guides and quick tips help you get accurate results and protect your hearing while you test.
Key features
- Run professional-grade audio tests directly in your web browser.
- No downloads or sign-ups required for instant testing.
- Stereo test checks left and right channel balance accurately.
- Frequency sweep reveals hearing range and possible distortion.
- Microphone recorder plays back audio while keeping your data local.
- Decibel meter and Bluetooth latency tests measure real-time sound metrics.
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