Audible "click" noise during playback

[ChrisLynch06]

I have tried using White Noise for Windows Phone, and have heard a very noticle "click" sound during playback. Is this due to the audio engine of Windows Phone and when you try to loop playback? Also, is there a way you can add a menu or option to select the specific sound to playback, instead of swiping through them all one at a time?