How to Measure Audio Latency

Before measuring audio latency you should have a good understanding of how it is related to audio/video synchronization and AV sync error. More information can be found on the Acceptable Audio Latency and AV Sync Error page.

Reporting audio latency: For displays with built-in speakers, such as TVs, favour reporting both AV sync error and video latency to users instead of reporting audio latency. For sink devices without displays, such as sound bars or AV receivers, report audio latency to enable the user to select devices with matching audio and video latency. See the Measurement Examples page for more details.


Measuring HDMI Audio Latency

AV Toolkit

Recommended Method
✅ Open source and extendable

Murideo Seven Generator

Murideo 8K Seven Generator. Image taken from the Murideo product page:

⚠️ Audio latency measurements are inaccurate by up to 19 ms.

Measuring S/PDIF Audio Latency

AV Toolkit

Recommended Method

Last updated on July 28th, 2023.