Generates tones for the head phone screening task described in:

Woods, K. J., Siegel, M. H., Traer, J., and McDermott, J. H. (2017). Headphone screen- ing to facilitate web-based auditory experiments. Attention, Perception, & Psychophysics, 79(7):2064– 2072.

Script written by Michael Wagner, April 2020

One difference to original stimuli is that Woods et al. used first half of a Hann window to fade in and out, while this script uses a half-cosine function

These soundfiles need to be double-checked still...