Latency for AV.io 4K and AV.io HD

What are the latency specs for AV.io 4K and AV.io HD. The former mentions ultra low latency in its product description page but the latter doesn’t?

We are dealing with a tight latency budget for 1080p30fps HDMI capture, so would be great to get actual #s for both so we can purchase the right product for our use.

Thanks in advance.

Vineet

The hardware latency of the AV.io series is approximately 2 frames. Typically that’s somewhere in the ballpark of 66ms. The software you’re using and even the display you’re connected to will also increase the potential latency.

Thanks!

Is that statement true for both AV.io 4k as well as HD?

Vineet

Yes it’s the same, though there will be minor variations in recorded latency unless you have a very sophisticated setup for testing such things.

One last question - Will the latency at the adapter increase if we capture at a downsampled rate (e.g., source is transmitting at 1080p60fps and we capture at 1080p30fps via AV.io 4K or AV.io HD ) to allow for real-time processing by our application.

Thanks!

Once the data has left the AV.io any extra latency incurred is a direct result of your unique system setup and capture software. Capturing at a different frame rate than the source won’t affect the latency of the AV.io. Basically there is a 2 frame hardware buffer and after that the AV.io sends data as fast as it can. There should however be a reduction in latency from using a 60fps source as opposed to a 30fps source.