Otodynamics Otoport Flex - Page 126

CHAPTER FIFTEEN
Conguration
126
Conguration
If either mode is set to O󰀨 then this mode will not be available for selection
from the main menu.
Mode
Mode sets the pass criteria for screening.
The Any 2 Bands, Any 3 Bands, Any 4 Bands and Any 5 Bands settings
require a 6dB SNR and a minimum signal level of -5dBSPL in each of the
stated number of half octave frequency bands to meet the pass criteria.
If you have selected the frequency range 2-6K, which has four test points,
do not choose a pass criteria of Any 5 Bands as it will not be possible for
the test to meet the pass criteria.
DP 12 Freq mode can be set at Any 2 to Any 12 Bands.
Fixed test parameters
Min band signal -5dBSPL
Max test time Approx 90s
Min DP loops
2
(Min no. of completed frequency cycles)
The default setting is Any 3 Bands for DP High and DP Low and Any 9
Bands for DP 12 Freq. However, it is recommended that pass criteria are
carefully chosen to suit the particular OAE testing programme.
Smart
With Smart mode On, DP bands that have met the pass criteria or bands
that have reached a low noise level (-12dB) will be skipped in the frequency
presentation loop, improving test e󰀩ciency by allowing more time for the
remaining frequencies.