Weber is a Julia package that can be used to generate simple psychology experiments that present visual and auditory stimuli at precise times.
While this is working on older versions of Julia (0.6), I have not had time to commit to updating this project as I am not actively developing any psychoacoustics experiments at the moment. I would not recommend using this package as is. It might be a useful place to start if you want to write your own package.
julia> Pkg.add("Weber")
For more details, see the documentation.