Audio Latency Test
Measure round-trip audio latency (input/output delay) using your speakers and microphone.
Advanced Audio Settings
Measure Round-Trip Audio Delay with the Audio Latency Test
The Audio Latency Test helps you measure the time it takes for an audio signal to leave your speakers, travel through the air, and return to your computer through the microphone. This complete round-trip audio latency is displayed in milliseconds (ms), making it easier to evaluate the responsiveness of your audio setup.
Whether you’re recording music, playing virtual instruments, gaming, or troubleshooting audio equipment, knowing your system latency can help you identify delays that affect performance. The test runs entirely in your browser and analyzes the loopback signal locally, so your microphone audio is never recorded or uploaded.
How the Audio Latency Test Works
Running the test only takes a few moments.
- Select a test signal such as Crisp Click, 1000 Hz Sine Beep, or White Noise Impulse.
- Click Start Latency Test.
- Allow microphone access when your browser requests permission.
- Position your microphone so it can clearly hear your speakers.
- Let the tool perform several loopback measurements.
- Review the measured round-trip latency along with the average, minimum, and maximum values.
- Use Copy Results to save your measurements or Reset to clear the current session.
The tool measures the time between playing the selected test signal and detecting its return through your microphone. This value includes output latency, input latency, and any operating system or audio driver buffering involved in the signal path.
If you’re unfamiliar with this concept, What Is Round-Trip Latency? and What Is Audio Latency? explain the fundamentals.
Understanding Your Results
After each measurement, the tool displays several useful statistics.
| Result | Description |
|---|---|
| Round-Trip Delay | Total measured input and output latency in milliseconds. |
| Average Latency | Average delay across all completed measurements. |
| Minimum Latency | Lowest recorded latency during the session. |
| Maximum Latency | Highest recorded latency during the session. |
| Visual Flash Indicator | Displays a synchronized visual flash alongside the test signal to assist with audio and visual timing checks. |
Lower latency generally produces a more responsive audio experience, while higher values may be noticeable during recording, gaming, or real-time monitoring.
Choosing the Right Test Signal
The Audio Latency Test includes multiple signal options to suit different environments.
- Crisp Click provides a sharp transient that is easy for microphones to detect.
- 1000 Hz Sine Beep offers a consistent tonal signal that works well in many setups.
- White Noise Impulse spreads energy across a wider frequency range and may perform better in noisy environments.
You can also adjust the Loopback Sensitivity Threshold in the Advanced Audio Settings. Increasing the sensitivity helps ignore background noise, while lowering it can improve detection when using quieter speakers.
If you’re experiencing delayed sound during recording or playback, Common Audio Latency Problems and How to Reduce Audio Latency provide practical troubleshooting tips.
Wired vs Bluetooth Audio Latency
Your playback device has a significant impact on measured latency.
Wired speakers and headphones often produce much lower round-trip latency than Bluetooth devices because they avoid wireless transmission delays. Bluetooth headphones can introduce noticeably higher latency depending on the codec, operating system, and hardware.
If you’re testing wireless devices, Bluetooth Audio Latency Explained, Wired vs Wireless Headphone Latency, and Bluetooth Latency Test can help you understand the results.
Privacy and Measurement Accuracy
The Audio Latency Test processes all audio locally within your browser. Your microphone signal is never recorded or transmitted to any server. When you stop the test, microphone access ends according to your browser’s media permissions.
For the most consistent measurements:
- Perform the test in a quiet room.
- Keep your microphone close to your speakers.
- Avoid sudden background noises during testing.
- Repeat the test several times and compare the average latency rather than relying on a single measurement.
Frequently Asked Questions
What does round-trip latency measure?
Round-trip latency measures the total delay from audio playback through your speakers to its return through the microphone, including both output and input latency.
Why is Bluetooth latency usually higher?
Bluetooth devices introduce additional wireless transmission and codec processing delays, resulting in higher latency than most wired audio connections.
Does the Audio Latency Test record my microphone?
No. Audio processing takes place entirely within your browser, and no microphone data is recorded or transmitted.
Why should I run multiple tests?
Small timing differences can occur between measurements. Running several tests provides more reliable average, minimum, and maximum latency values.
Can I use this tool for music production and gaming?
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