1. A method for measuring speech intelligibility, the method comprising the steps of: inputting a speech waveform; extracting at least one acoustic feature from the waveform; segmenting at least one phoneme from the at least one first acoustic feature; extracting at least one acoustic correlate measure from the at least one phoneme; determining at least one intelligibility measure; and mapping the at least one acoustic correlate measure to the at least one intelligibility measure.