A medical device includes an energy storage device, a plurality of electrodes, a memory, a switching circuit, and a processing module. In one aspect this device appears as a ring that has been slit along its center line over a portion of its circumference, the slit then being separated to produce a Y-shape. 5 electronvolts and a dielectric constant within a range of from about 1. In one embodiment, the initial filter bandwidth is set such that both the TDI and ACI are optimizedminimized. for DVDs and surround sound effects for CDs and audio files.