Measuring Lip Sync Error

Lip sync error, also known as AV-sync error (Audio/Video Synchronization Error), is defined as the time difference between when a synchronized audio and video signal are presented as sound and light, relative to the video signal.

These are two ways to measure the lip sync error of a device or AV system:

  1. Measure lip sync error using the Harkwood Sync-One2
  2. Calculate lip sync error based on audio and video latency measurements

For information on lip sync error refer to Acceptable Audio Latency and Lip Sync Error.

Last updated on October 8th, 2021.