On this page
Documentation
Audio testing documentation
Speaker, headphone and microphone checks built on the browser's own audio engine.
- 11 documented tools
- 0 downloads required
Overview
Verify that both channels play, that a headset is wired the right way round, that a microphone is being picked up, and that low frequencies actually reproduce. Playback tests generate tones in the browser; microphone tests need your explicit permission before they can read the input.
All 11 audio tools
Every tool below has its own documentation page and a link straight to the live tool.
Speaker Test
Left, right, stereo, bass, treble and sweep tones for laptop or desktop speakers.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Stereo Test
Channel isolation, balance, separation and phase checks for any stereo setup.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Left Right Audio Test
The quickest way to prove which side is which, with a blind identification game.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Headphone Test
Ears, balance, separation, bass and treble checks built for headphones and earbuds.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Microphone Test
Live level meter, waveform, spectrum and a local recording check.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Requires Permission — Asks your browser for access before it can run.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Audio Frequency Test
A 20 Hz to 20 kHz tone generator with sweeps, steppers and A/B comparison.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Audio Bass Test
20 Hz to 250 Hz tones for sub-bass reach, rattle hunting and distortion checks.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Speaker Balance Test
A nine-position balance stepper from full left to full right, with separation checks.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Bluetooth Audio Test
Check a paired Bluetooth output by ear: stereo, dropouts, bass, treble and a reaction-time delay check.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Mic Latency Test
Observed acoustic loopback latency over ten rounds, with jitter and P95.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Client-Side — Runs entirely on your device. No test data is uploaded.
- Requires Permission — Asks your browser for access before it can run.
- Plays Sound — Produces audio, so speakers or headphones are needed.
Speech to Text
Real-time browser speech recognition for voice-to-text transcription.
- Available — Live on this site right now.
- Browser Tool — Runs in the browser you are reading this in.
- No Install — Nothing to download, no extension, no account.
- Requires Permission — Asks your browser for access before it can run.
Which of these ask for a permission
Most tools here need nothing at all. These ones cannot work until your browser grants access, and each asks only when you start the test:
- Microphone Test — Live level meter, waveform, spectrum and a local recording check.
- Mic Latency Test — Observed acoustic loopback latency over ten rounds, with jitter and P95.
- Speech to Text — Real-time browser speech recognition for voice-to-text transcription.
Note
A permission prompt is a browser feature, not a sign-up. Denying it only stops that one test; nothing else on the site changes.
Where to go next
Pick a tool above to read its documentation, or open the live Audio tools page to start testing straight away. The troubleshooting hub covers the problems that come up across more than one tool.
Audio testing, without installing anything
Speaker, headphone and microphone checks built on the browser's own audio engine.