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Audio Latency Tester

Test and measure audio output latency for music production, gaming, and streaming. Check audio delay and buffer size in your browser with real-time results.

Audio Audio System Info
Sample Rate:
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Base Latency:
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Output Latency:
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Results Test Results
Tests Completed:
0
Average Latency:
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Latency Range:
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tests
Run multiple tests to get accurate average latency
ms
Time delay between each test measurement
Ready
Log Test Log

About Audio Latency Tester

Audio Latency Tester helps you measure the delay between when audio playback is triggered and when sound actually plays through your speakers or headphones. This is crucial for music production (DAW recording), gaming (audio-visual sync), live streaming, video editing, and any application where timing is critical. Lower latency means better real-time responsiveness.

  1. Click Start Test to initialize the audio system and grant browser permissions
  2. The tool will run multiple tests automatically with audible beeps
  3. View real-time results including average latency and range
  4. Check the test log for detailed results of each measurement
  5. Run tests multiple times for more accurate results

Understanding Audio Latency

  • Base Latency: Time between audio context and audio hardware buffer
  • Output Latency: Additional buffering delay in the audio output device
  • Total Latency: Sum of all delays from trigger to actual sound output
  • Good latency: < 10ms (imperceptible), Acceptable: 10-30ms, High: > 30ms
  • Lower buffer sizes reduce latency but may cause audio glitches
  • Use headphones for more accurate testing vs. speakers with room delay
  • Close background apps to reduce system load and improve latency
  • Professional audio interfaces typically have lower latency than built-in sound cards
  • Gaming and music production require the lowest possible latency
  • Video streaming can tolerate higher latency (50-100ms is acceptable)
See also
DIAGNOSTICS
WUTOOLS