Why this site exists
Audio delay is hard to understand because it hides inside the whole playback chain: browser scheduling, operating-system buffers, drivers, Bluetooth codecs, speakers, microphones, displays, and sometimes human reaction time. Audio Latency Test gives users a quick way to compare setups without installing a desktop utility.
The goal is not to replace professional audio measurement gear. The goal is to make common delay problems visible enough that a user can decide whether to switch to wired headphones, enable game mode, move a microphone, adjust a video offset, or investigate a recording chain.
What the tools cover
The homepage includes tap timing, microphone pulse detection, and A/V sync calibration. Supporting pages focus on headphone latency, Bluetooth latency, microphone latency, and sound-video sync. Each page keeps the usable tool near the top, then explains how to interpret results and edge cases.
Contact
Questions and bug reports can be sent to [email protected]. Helpful reports include your browser, operating system, output device, test mode, and a short description of the result you expected.