OS : Mac, Mojave (10.14.6)
PsychoPy version : 2020.1.2
Hello all, I have an experiment on builder that reads in some sound files to present as stimuli. This has been working well for the past few weeks, but today I ran it and the pitch of the stimuli was increased by a little over an octave. I am guessing it is doing some kind of time compression or getting the wrong sampling frequency, but I’m not sure why.
I checked the original files, and they are still playing normally. Then, I fiddled with the sound engines (as hinted here). I found that setting the preferences to sound device instead of PTB reverses the problem; however, psychopy generates a warning strongly recommending PTB.
Should I continue ahead with the local sound device, even if I eventually upload to Pavlovia? Millisecond timing is not super crucial for this experiment.