Web integrated interactive voice response systems include a server adapted to check for accessibility of a network connection associated with a calling party, and a graphical user interface system adapted to provide a plurality of menus in a graphical format to the calling party over a network connection. A reflected sound pattern added to reproduction sound is calculated so that the reverberation characteristics of the reproduction sound field approximate to the reverberation characteristics of the original sound field from the difference between the reverberation characteristics and is added and reproduced in the reproduction sound field. The fuel processor reacts the hydrocarbon fuel with the water to produce hydrogen gas and raffinate gases. Unprocessed vectors are then processed against the input vectors in an artificial neural network to generate the exemplar vectors. The butterfly switch selectively connects the first output and the second output to an output stage of the DAC.