Audio Latency Test

Measure your device's audio output latency — the delay between when a sound is triggered and when you hear it. This matters for gaming, live streaming, video calls, and music production. The multichannel speaker test checks front, center, surround, and subwoofer outputs to confirm a complete setup.

System-Reported Latency

Your browser reports these audio latency values from the Web Audio API.

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Output Latency
Output device delay
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Base Latency
Min processing delay
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Total Estimated
Output + Base
Press Measure Now to query your browser's audio latency values.

These values are reported by your browser and may not reflect actual hardware latency.

Tap Latency Test

Click Play Sound, then tap I Heard It! as soon as you hear the audio. We subtract an average human reaction time (150ms) to estimate latency.

Press Play Sound to begin. Wait for the click — don't anticipate it.
Your tap time after sound played --
Estimated reaction time 150 ms
Estimated audio latency --
Rating --

What Is Audio Latency?

Audio latency is the time delay between a sound being triggered in software and when it actually reaches your ears. Measured in milliseconds (ms), it affects everything from gaming performance to live music production. The spectrum analyzer shows bar graph and waveform views so you can analyse both spectrum and time-domain signal.

Bluetooth codecs introduce significantly more latency than wired connections — standard SBC Bluetooth can add 100–200ms of delay, while aptX-LL typically measures around 40ms. Run the bass test to pinpoint the exact frequency where your subwoofer output drops off.

Latency Ratings
  • < 20ms — Excellent: Imperceptible. Ideal for music production.
  • 20–50ms — Good: Acceptable for most applications.
  • 50–100ms — Acceptable: Noticeable in live performance.
  • > 100ms — High: Causes sync issues in gaming and streaming.
How to Reduce Latency
  • Use a wired audio connection instead of Bluetooth
  • Lower the audio buffer size in system settings
  • Use an ASIO driver (Windows) or Core Audio (macOS)
  • Close other audio applications running in the background