Audio Latency Test
Free Online Audio Latency Checker
Find out how much delay exists between your audio output and what you actually hear. Tap the button in time with the beat and we'll measure your latency in milliseconds.
Press Start to begin
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How to Use the Audio Latency Test
- 1
Put on your headphones or make sure your speakers are on.
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Hit "Start Test" — a steady click track will begin playing.
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Tap the "Tap" button in sync with each click you hear.
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After 8 taps, your average audio latency is shown in milliseconds.
- 5
Lower numbers are better. Under 30ms is great, 30–100ms is acceptable, over 100ms may cause noticeable delay.
What Is Audio Latency?
Audio latency is the delay between when your device sends an audio signal and when it actually comes out of your speakers or headphones. Even a tiny delay — as small as 20 milliseconds — can throw off musicians recording in real time, make video calls feel slightly off, or make gameplay less responsive. This test plays a simple rhythmic click and asks you to tap along with it. The difference between when the click was scheduled and when you tapped reveals how much delay your audio chain is adding.