NTi Audio XL2 Sound Level Meter - Manual (Page 211)

211
Specifications
Polarity Checks polarity of speakers and line signals •
Positive/Negative detection of wideband and •
individual 1/1 octave bands through internal micro-
phone or XLR/RCA connector
Test signal: NTi Audio polarity test signal gener- •
ated by the MR-PRO, MR2 or the included NTi
Audio Test CD
Noise
Curves
Noise Rating NR in accordance with ISO 1996 •
Noise Criteria NC •
in accordance with ANSI S12.2-2008 and -1995
Room Noise Criteria RNC •
in accordance with ANSI S12.2-2008
Room Criteria RC •
in accordance with ANSI S12.2-1995
Preferred Noise Criteria •
in accordance with ASA 1971
Application range of measurement microphones: •
M2230: down to NC15 »
M2211: down to NC15 »
M4260: down to NC27 »
1/12 Octave
Analysis
(optional)
Actual level, L • eq, Lmin, Lmax
Selectable 1/1, 1/3, 1/6 and 1/12 octave spectral •
resolution
Measurement Units: Volt, dBu, dBV and dBSPL •
Capturing of multiple readings into the internal •
memory
Comparing measurement results against captures •
with relative or absolute curve display
Comprehensive tolerance handling •
Creating tolerance masks based on captures for •
passed/failed measurements
Cinema
Meter
(optional)
Measurements in 1/3 octave resolution according •
SMPTE ST 202:2010 and SMPTE RP 200:2012
An interactive assistant guides the user through •
dedicated measurement procedures.
STIPA
Speech
Intelligibility
(optional)
Single value STI and CIS test result in accordance •
with IEC 60268-16, ISO 7240-16,
ISO 7240-19, DIN VDE 0828-1, DIN VDE 0833-4
Ambient noise correction •
Automated averaging of measurements •
Modulation indices and individual band level re- •
sults with error indicator
Test signal: NTi Audio STIPA signal generated by •
the MR-PRO, NTi Audio TalkBox or the STIPA Test
CD