play tone, record response time, continue playing until key pressed again(case 11603)

I am looking for a way to play an audio stimulus, but not stop the stimulus until the user presses a key a second time to stop it. The first time the person presses the key, I would like to record the response time but to be a "false" key. The second time they press it, I would like to record the response time and stop the audio. Is there a way this could be done in DirectRT?

Take a look at the Other Features > Require Multiple Keypresses section of the DirectRT manual and accompanying sample files.

How do I maintain a stimulus while holding a key down?

Take a look at the Other Features > Key Release RTs section of the DirectRT manual.