4.65 permanent threshold shift; PTS. Permanent increase in the threshold of audibility. Unit, decibel, (dB). Annotation Permanent threshold shift implies permanent injury to the structures of the inner ear or central auditory system, or...
4.64 temporary threshold shift; temporary hearing loss; TTS. Temporary increase in the threshold of audibility caused by exposure to high-intensity acoustic stimuli or ototoxic drugs. Unit, decibel, (dB). Annotation 1 Temporary threshold shift is by definition...
4.64 temporary threshold shift; temporary hearing loss; TTS. Temporary increase in the threshold of audibility caused by exposure to high-intensity acoustic stimuli or ototoxic drugs. Unit, decibel, (dB). Annotation 1 Temporary threshold shift is by definition...
4.64 temporary threshold shift; temporary hearing loss; TTS. Temporary increase in the threshold of audibility caused by exposure to high-intensity acoustic stimuli or ototoxic drugs. Unit, decibel, (dB). Annotation 1 Temporary threshold shift is by definition...
4.63 threshold shift. Change, usually an increase, in the threshold of audibility at a specified frequency. Unit, decibel (dB). Annotation 1 In masking, threshold shift is the difference in decibels between the masked threshold and the threshold of audibility....
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