Thank you so much for your information.
The problem why the experiment doesn’t run has been solved. My university’s computers are running windows 7 and the version 1.83.4 is the only version which is compatible with my experiment using Windows 7.
However, my experiment requires a participant in each trial ( there are 32 trials) to listen a sentence, select an image, and finally record his voice. The duration for the sound is $sound.getDuration() . The duration for the image is 6 seconds while the recording is 8 seconds. But, the core problem is at some specific trials, some issues appear constantly. In one trial, after the sound finishes, there is a delay that the images don’t appear. This happens to the same trial every time I run the experiment. At other two trials this delay appears but it is very short and the images appear.
I tried to put seconds ( e.x. 5 seconds) for the duration of the sound instead of using $sound.getDuration(), but it shows the same problem.
I run the experiment in my a laptop ( Windows 10) with the latest version of PsychoPy, it is much better, but it is still there is a little delay in the trial in which the images don’t appear completely when version 1.83.4 and windows 7 are used
I hope the description of the problem is clear.
Your help is greatly appreciated.