A speaker comprises a housing that defines an internal cavity and includes a front panel, a first side, a second side, and a third side. With some of the described techniques, invocation stubs are generated by a compiler and those stubs bridge a logical arrangement of data parallel computations to the actual physical arrangement of a target data parallel hardware for that data parallel computation. In addition, the process further comprises forming a conductive layer which at least partially fills the plurality of recesses and treating the conductive layer to improve the conductive properties of the conductive layer. The requirement on phase precision is found to be <0. An electrical generator, in engageable communication with the rotor assembly via the drive mechanism, converts mechanical energy produced by the rotation of the rotor assembly to electrical energy. The second gear tooth includes a second tooth surface.