Interacoustics OtoRead - Page 65

D-0116684-B – 2020/03
OtoRead™ - Instructions for Use - US Page 59
TEOAE
Stimulus
Frequency range:
700 to 4000 Hz
Stimulus type:
Click Train
Level:
80 dB peSPL, peak to peak calibrated
Click rate:
64 Hz
Stimulus tolerance:
± 3 dB
Transducer:
Probe auto detection, auto calibrated
Recording
Analysis time (max):
4, 16, 32 or 64 seconds.
A/D Resolution:
16 bits
SNR criteria:
3 – 10 dB
Measurement
Range:
-30 dB SPL – 100 dB SPL (max power output)
Accuracy of
Measurement:
< ± 3 dB
Sampling frequency
31250 Hz
Display
SNR and Value Graph
Probe
specifications
OtoRead
TM
probe:
DPOAE and TEOAE capable
Replaceable probe tube
Other
Test Pressure
Ambient pressure
6.2 Reference equivalent threshold values for transducer
Table 1: Frequency and Intensity with G.R.A.S. RA0045 OES
Output
Frequency
(Hz)
Minimum
Frequency
(Hz)
Maximum
Frequency
(Hz)
Minimum
Magnitude (dB
SPL)
Maximum
Magnitude (dB
SPL)
732.4
727
737
83
93
1037.6
1033
1043
85
95
1464.8
1460
1470
88
98
2075.2
2070
2080
92
102
2929.7
2925
2935
92
102
4150.4
4145
4155
85
95
5859.4
5855
5865
76
86
Table 3: Probe Nominal Sound Channel Magnitudes in dB SPL
Frequency
[Hz]
IEC 60711, RA-
0045
732.4
88.0
1037.6
90.0
1464.8
93.5
2075.2
97.8
2929.7
97.8
4150.4
90.6
5859.4
81.9