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106 Speech Intelligibility
STI-PA results screens
Models SE and DL
STI-PA modulation envelope screen
This screen reports a summary of the STI-PA modulation screen.
1. To view each band’s results, press Arrow key.
NOTE: The results can be used to assess each frequency’s band modulation
level to determine why it passed or failed (in order to correct any issues).
Figure 6-23: STI-PA Modulation envelope screen
Storing background noise/capture curve
In order to measure and store background noise prior to STI-PA testing, you will want
to measure (or “capture”) the level via the Captured Curve Setup and then apply it
during the STI-PA test. (Note: this is only performed if you do not want to play the
test tone during “normal” business hours.)
1. From the Start screen, select either 1/1 octave or 1/3 octave for the
measurement type.
Figure 6-24: Selecting 1/1 or 1/3 for measurement type
Scale
MTF scale rating results
across bands
Selected band
Scale Results of
selected band
Selecting Measurement type
Press first softkey until 1/1 or 1/3
is selected