<div dir="ltr"><div>Hello everybody, </div><div><br></div><div>For my experiment, I present on the screen (full screen) short movies without sound. Because I film the participants during the experiment and work on the video files obtained (I am obviously interested on the moment when they see the movies), I add a sound on the same slide where short movies are and record this sound on the video files.</div>
<div><br></div><div>I wonder if there is a kind of time gap between the "presentations" of the sounds and those of the movies in E-Prime ?</div><div><br></div><div>In the same time, I record electrophysiological signals from the participants. I use E-Prime to send triggers on this recordings allowing me to target the apparition of the short movie and I also record the sound on an other channel (in this way, I can consider the sound like "sound trigger" which should correspond to the E-Prime trigger).</div>
<div><br></div><div>I see on this biological recording that there is a difference of nearly 50 ms between the E-Prime trigger and the "sound" one whereas the E-Prime trigger should correspond to the apparition of the slide where there are both the short movie and the sound.</div>
<div><br></div><div>Is it possible to have a better timing in this configuration ?</div><div><br></div><div>I hope I am clear enough...</div><div>Thank you so much if you can bring me an answer about that, </div><div><br>
</div><div>Best, </div><div>Soizic</div><div><br></div><div><br></div><div><br></div>
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