Oh so are you using the keypress response? Gotcha. Can you paste the definition of your audio stimulus here? We want to make sure that you are using barrier properly (which should be the default).
In addition to that, I think the documentation may be partially incorrect - the RT of each keypress is always relative to the onset of the entire keypress response. For example, if you have two RT readouts on a single trial, the second RT readout would be cumulative, representing the duration between the onset of the response and the second key press.
We'll make a decision on whether we'll revise the documentation or fix the code. Apologies for the inconsistency here.
In addition to that, I think the documentation may be partially incorrect - the RT of each keypress is always relative to the onset of the entire keypress response. For example, if you have two RT readouts on a single trial, the second RT readout would be cumulative, representing the duration between the onset of the response and the second key press.
We'll make a decision on whether we'll revise the documentation or fix the code. Apologies for the inconsistency here.