PURPOSE: A method for objectively assessing a speech quality and an objective speech quality assessing system are provided to model an influence of a distortion for a subjective speech quality assessment, and to reflect the modeled distortion influence, thereby supplying an objective speech quality assessment technique in consideration of language effects. CONSTITUTION: A speech signal is processed to determine an objective speech quality in a frame(102). The speech signal is analyzed by a voice action detector(105). The voice action detector determines whether an associated voice action corresponds to a short burst or an impulse-type noise by inspecting an interval(110). If not, the voice action of the interval is checked to determine whether the voice action has a quick stop function or a silent sound function(120). Whether the voice action has a quick start function is examined(130). If so, a modified objective speech frame assessment is obtained(135).
METHOD OF REFLECTING TIME/LANGUAGE DISTORTION IN OBJECTIVE SPEECH QUALITY ASSESSMENT