Otoport OAE+ABR
User Manual for Otoport DP+TE model
195
Mode of operation
Signal and noise calculation
Measures of signal and noise levels are based on the correlation
and dierences between waveforms A and B.
Stimulus repetition rate
One stimulus every 13ms, approximately 80 stims per second.
Response window
2.5-12.5 ms or 4-10 ms after start of stimulus.
Cosine ltered with rise and fall time of 2ms
Response frequency bands
Half octave, centres at 1, 1.4, 2, 2.8 and 4kHz
Response frequency range
841-4757Hz
Microphone input lter
1189-4757Hz
The attenuation at these frequencies is 3dB.
Attenuation increases by 80dB/decade below and 40dB/decade
above these frequencies.
Memory capacity
Patients 1000
Tests per patient 256
Total tests 1000
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