An edge or corner protector comprises side surface portions which are adapted to be spaced from the external side surface portions of an article or appliance which define an external corner or edge region of the article or appliance to be protected, and an interior corner or apex region which is likewise adapted to be spaced from the external corner or edge region of the article or appliance. When a sound reducing control performing condition is fulfilled, a valve-opening control for reducing sound is performed. The auxiliary signal path may include an auxiliary mixer configured to provide an on-chip matching input impedance that may match an impedance of the antenna. The toilet fill valve being open when the floatarm assembly is disposed in a second position. The compensation factor is then stored in memory corresponding to the specific set of imaging conditions.