# Sound-Tester

> Free online audio testing tools that run entirely in your browser. Test headphones, speakers, microphones, and audio hardware without installing anything. All audio processing happens locally for complete privacy.

## Pages

### Audio Tests

- [/headphone-test](/headphone-test): Test left/right stereo channels, driver balance, and frequency response on any headphones.
- [/speaker-test](/speaker-test): Check speaker functionality, stereo separation, and frequency output on any speaker system.
- [/mic-test](/mic-test): Test your microphone input level, recording quality, and detect hardware issues.
- [/frequency-test](/frequency-test): Play pure sine wave tones from 20 Hz to 20,000 Hz to test hearing range and speaker response.

### Advanced Tools

- [/bass-test](/bass-test): Generate low-frequency tones to test subwoofer performance and bass response.
- [/surround-sound-test](/surround-sound-test): Test multi-channel surround sound setups and speaker positioning.
- [/decibel-meter](/decibel-meter): Measure ambient sound levels and noise pollution using your device's microphone.
- [/audio-latency-test](/audio-latency-test): Measure audio delay and system latency using reaction-time and tap-on-beat methods.
- [/dtmf-tone](/dtmf-tone): Generate DTMF dial tones and touch-tone signals.

### Information

- [/](/): Homepage with all audio testing tools and quick-start guides.
- [/about](/about): About Sound-Tester, our mission, and how the tools work.
- [/contact](/contact): Contact form for feedback, bug reports, and feature requests.
- [/privacy-policy](/privacy-policy): Privacy policy. All audio processing happens locally in your browser.