The sound element defines a set of sound stimuli.

Syntax

<sound soundname>
/ erase = true(red, green, blue) or false
/ items = itemname or ("item", "item", "item",... )
/ pan = integer
/ playthrough = boolean
/ select = integer or selectionmode or selectionmode(pool) or dependency(stimulusname) or dependency(countername) or countername
/ volume = integer
</sound>

Properties

sound.soundname.currentitem
sound.soundname.currentitemnumber
sound.soundname.selectedcount
sound.soundname.unselectedcount

Remarks

The sound element determines how individual items are selected on each trial (e.g. serially through item list, random selection without replacement, linked to the selection of items from another stimulus element) and how those items should be presented (e.g., left/right pan and volume).

Examples

The following defines a set of sounds to be presented to the left speaker:

<sound rock>
/ items = ("beatles.wav", "stones.wav", "thewho.wav")
/ pan = -10,000
</sound>