4.62 speech recognition threshold level. For a given ear and a specified speech signal and method of presentation, the lowest hearing level at which the speech signal is recognized 50% of the time. Abbreviation, SRT; unit, decibel (dB)....
4.61 speech level. Sound pressure level, or vibratory force level, of a speech signal as measured in an appropriate coupler, ear simulator, or in a sound field, with a specified frequency and time-weighting. Annotation 1 Speech...
4.60 sensorineural / sensory/neural hearing loss. Impairment of hearing that occurs when there is damage to the cochlea, cochlear nerve, central auditory pathways, or a combination of these...
4.59 Schwabach test. Used to distinguish between conductive and sensorineural hearing losses. A vibrating tuning fork is applied to the mastoid process until the subject can no longer hear it. This time duration is compared with the duration that the tuning...
4.58 Rinne test. Used to distinguish between conductive and sensorineural hearing losses. A vibrating tuning fork is applied to the mastoid process until the subject can no longer hear it. Then it is held close to the subject’s ear. In a normal ear or...
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