formats

Metric Halo – ULN2 self measurements

In order to measure the latency & A/D DA conversion quality of an interface, you can loop out of the interface & return the signal to an input.

The following are latency measurements at the (4) different sample rates:

Screen Shot 2014-07-11 at 5.49.01 PM44.1k – 1.678 ms
Screen Shot 2014-07-11 at 5.48.33 PM48k – 1.542 ms
Screen Shot 2014-07-11 at 5.48.17 PM88k – .839 ms
Screen Shot 2014-07-11 at 5.48.07 PM96k – .771 ms

Obviously if you want the lowest latency possible, you should run at a sample rate of 96k.

Next let’s look at the frequency & phase response at each sample rate.