Duration Sound

figure 2. duration perception

duration perceived how long or short sound , relates onset , offset signals created nerve responses sounds. duration of sound lasts time sound first noticed until sound identified having changed or ceased. not directly related physical duration of sound. example; in noisy environment, gapped sounds (sounds stop , start) can sound if continuous because offset messages missed owing disruptions noises in same general bandwidth. can of great benefit in understanding distorted messages such radio signals suffer interference, (owing effect) message heard if continuous. figure 2 gives example of duration identification. when new sound noticed (see figure 2, green arrows), sound onset message sent auditory cortex. when repeating pattern missed, sound offset messages sent.