Playing audio sounds during a video after mouseclick
I'm trying to program en experiment where a video is shown. When the participant gets a certain feeling (tingles, experiment related to ASMR), they click the right mouse button. Then they must immediately indicate how intense the feeling is by clicking the left mouse button a few times (more = more intense). After 30 seconds, 1 minute, 1 minute 30 seconds, etc. I want to play a soft sound which indicates to them that they need to indicate the intensity of the feeling again (by clicking the left mouse button). I'm having some trouble with overlaying the sounds over the video. Can anyone help?