Interacoustics Titan - Page 97

Titan Instructions for Use - EN Page 93
DPOAE
Stimulus
Frequency range:
500 to 10000 Hz
Nominal frequency:
f2
Frequency step:
25 Hz
Level:
30 to 80 dB SPL (75 dB SPL for 6kHz and 65 dB SPL for 8kHz to
10kHz)
Level Step:
1 dB
Transducer:
IOW Probe auto detection, auto calibrated
Recording
Analysis time:
Minimum 2 seconds to unlimited time
A/D Resolution:
24 bit, 5.38 Hz resolution
Artifact rejection system:
-30 to +30 dB SPL or off
Stimulus tolerance:
Adjustable between 1 and 10 dB
SNR criteria:
Adjustable between 3 and 25 dB
Probe check window:
256 points frequency response of the ear canal due to a click stimulus.
DP-response window:
4096 points frequency response
Residual noise:
A RMS average measurement in the DP-bin frequency area (26 bins
at frequencies < 2500 Hz & 60 bins ≥ 2500 Hz).
Display
General display gain:
Applicable during testing
Display:
Stimulus level and type, Bar and Graph view
Probe specifications
Titan IOW probe:
IMP, DPOAE, TEOAE and ABRIS capable
Replaceable probe tip
Other
Test Pressure
Ambient pressure.
Tympanic peak pressure.
TEOAE
Stimulus
Frequency range:
500 to 5500 Hz
Frequency step:
1 Hz (Custom bands)
Stimulus type:
Non-Linear and Linear (according to IEC 60645-3)
Level:
30 to 90 dB peSPL, peak to peak calibrated, AGC controlled
Level step:
1 dB
Click rate:
43 – 100 Hz
Stimulus tolerance:
Adjustable between 1 and 3 dB
Transducer:
IOW Probe auto detection, auto calibrated
Recording
Analysis time:
5 seconds to 30 minutes
A/D Resolution:
24 bit
Artifact rejection system:
0 to +60 dB SPL or off
SNR criteria:
Adjustable between 5 and 25 dB
TE criteria:
Band SNR, No. of Sweeps, Test time, Min Total OAE, Min
Reproducibility - adjustable for use as test criteria
Display
Stimulus time window:
128 points instant recording of first click in sequence of clicks
Probe check window:
256 points frequency response of the ear canal recorded click stimulus
Time recording window:
3 – 23 msec (max). A and B buffer time-samples @ sampling rate
11025 Hz
Freq. response window:
256 points frequency response, bin spacing 43 Hz
Other information:
In ear status (active during test), Noise level, Tympanic peak pressure
Basic and Advanced view, FFT view, Test Summary view
Probe specifications
Titan IOW probe:
IMP, DPOAE TEOAE and ABRIS capable
Replaceable probe tip
Other
Test Pressure
Ambient pressure or tympanic peak pressure found in IMP module