This pedal is a Pattern Tremolo by lightfoot labs, Goatkeeper. It's pretty cool.
Anyhow I hope you like the groovy jam. Sorry bout the poor mic and soundcard
till I get a new one your gonna hear some white noise. Listen to it with headphones
for me I can hear a better balance of the backing tracks and drums
To tell what the effect is you'll hear this tremolo (ping-pong) slow to rapid type sound you should be able to tell.
http://www.youtube.com/watch?v=G67p82f2N1c
FYI, It's not your speakers. It's Jodi Fosters last attempt at locating the alien life forms via the use of large dish arrays.
Not your fault. Could have happened to anybody.