systemBeep.duration
systemBeep.frequency
systemBeep.currentItem
systemBeep.currentItemNumber
systemBeep.erase
systemBeep.playThrough
systemBeep.skip
systemBeep.stimulusOnset
systemBeep.timestamp
systemBeep.name
systemBeep.typeName
None.
The systembeep element is built-in, there is no need to explicitly declare it in the script. It is a type of stimulus, so it can be used wherever a stimulus element is valid. The systembeep is useful for providing audio feedback (e.g., to indicate an incorrect response). The advantage of using systembeep rather than the sound element is that it does not require a sound card.
By default, the duration of the beep is 250 ms and the frequency is 750 hz.
The following trial presents a beep.
<trial beeptrial>
/ stimulusTimes = [1=systembeep]
/ validResponse = (anyResponse)
</trial>