The duration in milliseconds of the systembeep.
systembeep.name.duration
Read/Write
integer
By default, the duration is 250 ms. This property is useful in changing the duration of the systembeep dynamically during runtime if needed.
The following trial presents a beep for 1 second.
<trial beeptrial>
/ onTrialBegin = {systembeep.duration = 1000}
/ stimulusTimes = [1=systembeep]
/ validResponse = (anyResponse)
</trial>