# Acquire a series of trials live + save video

Aim

To carry out video tracking in a live situation, for a number of times (trials), in a predefined list. Video is recorded.

Prerequisites

1.For general recommendations, see Acquire a series of trials - live.

2.In the Acquisition Settings window, select both Track all planned trials and Save video.

To acquire a series of trials live + video

See the procedure Acquire a series of trials - live .

The difference is that:

▪Video for the current trial is being recorded to a file on the hard disk. Video recording starts at the start of the trial, not at the start of tracking.

▪For each trial, video recording is stopped before the start of the inter-trial interval.

▪Saving the video at the end of each trial takes time. The Inter-trial interval countdown only starts after the video has been saved. For this reason, the total time between the end of the i-th trial and the start of the i+1-th trial may be longer than the inter-trial interval.