Yep, that's the sound! Was there a particular sound underneath it, though, or was it just what was going on in the song already? (If I understand right, panning just outputs sound to the left or right speaker. And increasing the volume makes it louder. So there would have to be a sound under there to be affected by the panning/volume increase. Unless just the rapid switching of panning itself makes a sound of its own?)
Thanks for taking the time to answer! :)