Input data is divided into multiple segments that are processed by processing elements of a computer. The catheter includes a localizer sensor configured to generate positional information for the ultrasound catheter, and an imaging ultrasound sensor having a restricted field of view. A resilient pad in the mounting then exerts a restoring force to return the foil to a neutral orientation as the lateral pressure equilibrates. Further, the first outlet portion, the second inlet portion, and the connecting tube portion are arranged such that their tube axes are in a straight line. The interactive signal source, such as loudspeaker or lamps, is selectively driven by one of the interactive data to generate a movement-dependent audiovisual effect.