Distorted sounds offline experiment

[aeli]

This might be related to what I just posted here on an older issue

Audio stimuli changed in pitch?

This is a still a live cross-platform issue with standalone desktop versions, but I think I’ve identified the source of the problem. The PTB backend defaults to 48K sample rate, as you can see here at the _getDefaultSampleRate() method. When the builder compiles the sound elements of an experiment, it first creates a sound object with an “A” tone, and only later changes the sound to point to file specified in builder. Changing the file with the setSound() method doesn’t change the sampl…