Otodynamics Otoport Flex - Page 120

CHAPTER FIFTEEN
Conguration
120
Conguration
seconds of test time remaining. If the central key is pressed, an E will be
displayed and the test will run until autostop criteria are met, it is manually
stopped or the absolute limit for testing is reached.
Noise mode
Noise mode sets the method by which the noise oor in DP tests is
calculated.
The Standard mode implements a noise oor which is appropriate for
clinical measurements in which high accuracy (in terms of the dBSPL
of the OAE) is required at each frequency. A good Signal to Noise Ratio
(SNR) in this mode indicates that a high accuracy of measurement has
been reached.
The Rapid mode is appropriate for secure detection of the presence of
OAEs at a set number of frequencies for screening purposes. A good
Signal to Noise Ratio (SNR) in this mode indicates high condence level
that an OAE is present.
The Standard mode can also be used for screening but only in quiet test
conditions. Tests will take longer than the Rapid mode and the condence
level of the result will exceed that needed for screening.
Otodynamics does not recommend the Rapid mode for clinical
measurements as the dBSPL accuracy may not be su󰀩cient to quantify
changes over time.
Further details of the Noise Modes are included in chapter 23, Mode of
operation.