# Audio Latency Test

> Browser tools for estimating audio delay, headphone latency, Bluetooth lag, microphone round-trip delay, and A/V sync offset.

## Core Content
- [Audio Latency Test](https://audiolatencytest.wiki/): Main browser tool with Tap Test, Mic Round-Trip, and A/V Sync modes.
- [Headphone Latency Test](https://audiolatencytest.wiki/headphone-latency-test/): Headphone, earbud, headset, and laptop audio delay testing.
- [Bluetooth Latency Test](https://audiolatencytest.wiki/bluetooth-latency-test/): Wireless audio lag and sync-offset testing.
- [Bluetooth Headphone Audio Delay Fix](https://audiolatencytest.wiki/bluetooth-audio-delay-fix/): Troubleshooting guide for Bluetooth headphone delay on Windows, phones, TVs, games, and calls.
- [Mic Latency Test](https://audiolatencytest.wiki/mic-latency-test/): Browser microphone round-trip delay check.
- [Speaker Latency Test](https://audiolatencytest.wiki/speaker-latency-test/): Laptop, TV, soundbar, monitor, USB, and Bluetooth speaker delay testing.
- [Audio Sync Test](https://audiolatencytest.wiki/audio-sync-test/): Flash and beep alignment for sound-video delay.
- [How to Test Audio Delay on PC](https://audiolatencytest.wiki/how-to-test-audio-delay/): Repeatable PC flash-and-beep method, millisecond interpretation, device-path isolation, and retesting steps.
- [Audio Drift Fix](https://audiolatencytest.wiki/audio-drift-fix/): Distinguish a fixed audio delay from a growing audio-video gap, test drift at three time points, and repair recordings, captures, players, and streams.

- [OBS Audio Delay Fix](https://audiolatencytest.wiki/obs-audio-delay-fix/): Capture card Sync Offset, buffering and drift troubleshooting.

- [What Is Audio Latency?](https://audiolatencytest.wiki/what-is-audio-latency/): Guide to milliseconds, acceptable thresholds, causes, testing, and fixes.

- [Windows 11 Audio Latency Fix](https://audiolatencytest.wiki/windows-11-audio-latency-fix/): Driver, format, enhancement, Bluetooth, USB, gaming, and recording troubleshooting.

- [High DPC Latency Fix](https://audiolatencytest.wiki/high-dpc-latency/): Diagnose DPC and ISR spikes, identify problem drivers, and fix audio crackling or dropouts.
- [Windows 11 Audio Crackling Fix](https://audiolatencytest.wiki/windows-11-audio-crackling-fix/): Diagnose popping, static, speaker crackle, Bluetooth interruptions, ASIO buffer underruns, and driver-related dropouts.
- [YouTube Audio Delay Fix](https://audiolatencytest.wiki/youtube-audio-delay/): Isolate and fix sound that is out of sync in browsers, mobile apps, Bluetooth, TVs, HDMI, and soundbars.
- [VLC Audio Delay Fix](https://audiolatencytest.wiki/vlc-audio-delay-fix/): Adjust VLC playback timing, reset audio offsets, and separate a bad media file from Bluetooth, HDMI, or soundbar delay.
- [Ableton Latency Fix](https://audiolatencytest.wiki/ableton-latency-fix/): Reduce Ableton Live monitoring delay with driver, buffer, monitoring, plugin and MIDI checks.

## Common Resources
- [About Us](https://audiolatencytest.wiki/about/): Site purpose and contact.
- [Privacy Policy](https://audiolatencytest.wiki/privacy-policy/): Browser audio and microphone data handling.
- [Terms of Service](https://audiolatencytest.wiki/terms-of-service/): Use terms and limitations.

## Latest Updates
- [Audio Latency Test](https://audiolatencytest.wiki/): Updated in July 2026.