Experimenting with OTO Bisquit
We ran a Moog Etherwave Theremin through the OTO Biscuit and noticed a nice heartbeat occurred when the Theremin hit a very low note with a fast attack. The OTO Biscuit crushed the tone to bits which was also aided in the effect.
If you are listening through cheap computer speakers, this will not sound like much of anything. You really need some serious woofers or high end headphones to hear the low frequencies that are in this video.
Thanks to Josh Flynn for shooting the video!