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Audio Latency Tester

Measure loopback audio latency by playing a reference beep and listening for its return through your microphone or capture device.

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Setup tips

  • Connect your audio output to your microphone or line-in for the most accurate measurement.
  • Disable noise suppression / echo cancellation in your OS or streaming software.
  • Increase speaker volume temporarily if using open-air detection.

What this tool does

Audio Latency Tester helps you measure loopback audio latency by playing a reference beep and listening for its return through your microphone or capture device.

What you get

Audio Latency Tester produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.