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Acoustic Impedance Studies with Living
Studies with Models
Possible Reflection of Resonance
32 other sections not shown
19 listeners 20 second unit 2K 3K Frequency 5K IK 2K acoustic impedance measures Attenuator audiogram audiometry Audivox 9C earphone behavior for listeners Bekesy audiometer Bekesy tracking behavior Cycles per Second dB SPL dB total spread decibel variation discrete frequency method discrete frequency thresholds ear impression eardrum experimenter experimenter-controlled discrete frequency experimenter-controlled method Frequency in Cycles given listener impedance bridge impedance values lower contour shows Lower interquartile male listeners mean thresholds middle ear resonances middle ear system normal hearing number of pen otosclerosis pair shows pen reversals primary prominences prominences of sensitivity range of decibel reactance relationship between threshold resonance characteristics reversals per 20 Second Fig sensitivity and Bekesy shown by dashed shown in Figure shows the number shows the threshold sound pressure level stapedius subject-controlled discrete frequency subject-controlled method suggested TDH-39 earphone temporal bones test ear test frequency threshold contours threshold levels threshold sensitivity transmission characteristics tympanic membrane upper contour