The phase information digital audio processing mechanism has an input of discrete different frequency periodical signals. A critical bandwidth calculator (100) calculates each frequency as a function of a human audio filter, then a unit (102) establishes the frequency plane where the local phase changes. A phase significant discriminator (104) determines the adjacent frequency component returning inside the frequency plane discriminating the phase signal and outputs the significant digital word phases.
Acoustic speech signal phase information processing having frequency periodic signals critical bandwidth calculator/local phase frequency plane change/phase significant discriminator producing digital phase outputs.