22. A speech recognition method comprising the steps of: processing first speech input signal data to preclassify the speech input signal and produce first preclassification output data, wherein the first speech input signal data represents a speech input signal; processing second speech input signal data to preclassify the speech input signal and produce second preclassification output data; determining when to include the first speech input signal, the second speech input signal, and a combination of the first and second speech input signals in a preferred mix of the preclassification output data by determining at least an appropriate balance between speech recognition accuracy and a speech recognition processing speed; mixing the first and second preclassification output data in accordance with the preferred mix; and classifying the speech input signal based on the preferred mix of preclassification output data.
30. The speech recognition method of claim 22 wherein the step of classifying the speech input signal comprises the step of: classifying the speech input signal with a multilayer perceptron neural network.