NTi Audio XL2 Sound Level Meter - Manual (Page 226)

226
Appendix
These levels are shown in the numeric result page:
LAeq5”+k1 Time-averaged sound pressure level LAeq
with correction value k1 and a moving time
window of 5 seconds.
LAeq+k1 Time-averaged sound pressure level LAeq
with correction value k1.
LCpeak+k2 C-weighted peak level LCpeak with correc-
tion value k2.
The following sound levels are displayed in the real-time ana-
lyzer page:
LZFhold3 For tracing of feedback frequencies. The
peak hold time is set to 3 seconds.
LZFlive Actual real-time spectra.
How to Measure
Select the page • KSET with the rotary wheel .
Measure the correction values k1 and k2 as described in the •
chapter Sound Level Meter: Correction Value K SET .
Press the start button • .
The icon • LOG flashes during the ongoing measurement. In
the case where the profile #DIN15905-5 & Audio has been
selected the icon AUD flashes, indicating the additional au-
dio wav-file logging.
During the measurement you can monitor the actual sound
•
level LAeq5”+k1 in order to remain below the permitted lim-
its; alternatively you may monitor the spectrum analyzer for
tracing possible feedback frequencies.
Press stop
• to finish the measurement.
In accordance with DIN15905-5, all sound lev-
els are measured, displayed and logged to the
SD Card automatically. The settings are locked,
which ensures that the correct parameters are
measured.
The profile #DIN15905-5 & Audio includes the
recording of Compressed+AGC wav-files.