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Knock or preignition is an artifact of engine ignition timing and lower grade octane petroleum fuels common place in our society. These fuels are especially prevalent in countries that sophisticated refining techniques or practices have not come to age. Octanes in the mid to high eighties encompass 80-90 percent of the fuel used by the major portion of the United States. In other countries, the octane number plummets giving rise for better means to adapt or set the engine for “real-time” optimum performance. Adapting to this world is essential in the existing global economies that automotive manufacturers call their home. A close examination and then detection of the knock event that is flexible in both gain and frequency would improve the control of the engine to adjust to both a spontaneous event and predicable event. Studies have proven this subject more “a prediction” than an understood science. Now, with some sophisticated techniques, the event is quantified more analytically.