Stipa, Averaging of stipa results – NTi Audio XL2 Sound Level Meter User Manual
Page 123
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STIPA
Store STIPA Measurement Result
To store the test result, select the memory menu
•
with
the rotary wheel and press enter .
Select
•
Save Test to store the test results or select Screen-
shot to store the screenshot.
The speech intelligibility STIPA is measured and stored on
the SD Card including sound pressure level and modulation
indexes.
Averaging of STIPA Results
The standard IEC 60268-16 recommends averaging two or
three subsequent results taken at the same measurement lo-
cation.
The German Standard VDE 0833-4 requires performing mini-
mum three subsequent measurements for one measurement
position in case of STI < 0.63.
The XL2 Analyzer offers automated averaging of two up to
eight STIPA results based on these standard requirements.
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