A system that incorporates teachings of the present disclosure may include, for example, a communication device having a controller to receive a media program signal from a set-top box, monitor ambient sound, and suppress a portion of the ambient sound according to the media program signal. Each frame has a plurality of transmission slots, different numbers of which can be used to transmit data. The apparatus remarkably improves the cargo-handling capability of a harbor in comparison with that by the prior art. The piston includes a head having an inlet surface disposed within an inlet chamber of the cylinder actuator and an outlet surface disposed within the outlet chamber of the cylinder actuator. During a transient gear change where the engine temporarily encounters a low load and low speed operating condition, the system increases loading on the engine via the supplemental torque apparatus so that a cylinder can continue auto-ignition combustion. Optional items include a back support means, inner and outer thigh engagement means, and a resistance means.