Is this supposed to happen? (Please help!)

[Strawberry 32]

I just downloaded the application for i-doser and decided to try out the free doses before buying any. The two I tried where Alcohol and Content. But they where just a buzzing hum noise that varied in pitch rpidly, both of them! The samples on the site, Peyote and Trip, actually have some kind of beat going on. Is this supposed to happen, or is my computer not doing it right?

[Ness]

You're hearing right. The ones on the site are from the CDs which have ambiance though I'm not sure why. Anyway, you're doing it right.