ABSTRACT
Objective To evaluate Mandarin disyllables recognition scores in noise for normal hearing people , and to establish a model for teaohing .The second goal is to get the spatial separated advantage while the noise chan‐ging its direction .Methods Percentage of correct word recognition was measured for each list by testing 50 Manda‐rin-speaking people aged from 18 to 30 with normal aural/oral communicational abilities And .6 of them joined the pilot study aimed to identify a presentation level that would be used in the formal test .The other 44 subjects partici‐pated in the formal speech test .Results When the noise was at 0 and 90 ,the speech recognition changed along with the change of signal-to-noise ratio levels .Despite of the speech recognition effect ,there was a strong relation be‐tween the signal-to-noise ratio of 0° and 90° .Conclusion The direction of speech and noise may strongly influence the speech recognition scores .When the noise and signal is separated ,the score will be better .