Follow a short guided test: prepare your output device, play a tone, click when you hear it, and review the timing estimate.
Browser utility
Use headphones, speakers, or the device you want to test.
The page will play a short tone at low volume.
Click the moment you hear the tone.
Read the response delay and browser timing details.
Prepare your audio output, keep the volume comfortable, then start the test.
Start the guided test to record an estimated audio response delay.
Guide
Run a guided browser audio latency check with a short sound, a click response, and Web Audio timing details.
Browser audio latency matters for music tools, games, recording interfaces, metronomes, web synthesizers, and interactive media. When sound arrives late, clicks and visuals feel disconnected. This page uses a guided test so the user knows exactly when audio will play and when to respond.
The test plays a short tone through the Web Audio API and asks you to click as soon as you hear it. The measured value includes output delay and human reaction time, so it should be treated as a practical response estimate rather than a laboratory-grade hardware measurement.
The page also reports browser-exposed timing values such as base latency, output latency when available, and sample rate. Those values help explain whether the browser and device path look unusually slow before you run a more formal loopback test.
Use this page as a quick diagnostic when comparing browsers, headphones, Bluetooth devices, speakers, or external audio interfaces. Keep volume comfortable because the test plays a short tone.
Quick reference
Prepare headphones or speakers, play the tone, then click when you hear it.
Click response delay: 214 ms / Browser base latency: 2.90 ms / Sample rate: 48000 Hz
The click response includes your reaction time, so use repeated trials and compare relative results rather than treating one value as hardware latency.
Bluetooth, browser choice, operating system routing, and external audio interfaces can all change the result.
For physical round-trip latency, use a microphone or loopback setup. This browser test is a quick comparison tool.
Common mistakes
No. A click-based browser test includes human reaction time. Physical round-trip latency needs microphone or loopback measurement.
A guided flow reduces confusion because the page can warn you before sound plays and ask for the click at the right moment.
Not every browser exposes outputLatency. The tool shows Not reported when that value is unavailable.
Yes. The test plays a very short tone at low volume.