User manual

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Further Information
Speech Intelligibility STIPA
NTi Audio #: 600 000 338
The XL2 Analyzer measures the speech intelligibility ac-
cording to the latest revision of standard IEC 60268-16:2011
(edition 4) and older editions. It includes ambient noise cor-
rection and automated averaging of measurements. The XL2
displays the measurement results as STI or as CIS results, ac-
companied by the individual levels and modulation indices of
the seven octave bands.
The measurement results are acquired from the dedicated
STIPA test signal source:
NTi Audio TalkBox, acoustic signal generator•
required for audio systems with voice microphones, thus
measuring the complete signal chain
Minirator MR-PRO, test signal generator•
required for audio systems with line inputs
STIPA Test CD (included) •
Remote Measurement Option
NTi Audio #: 600 000 375
The Remote Measurement option allows the real-time acquisi-
tion of XL2 measurement data directly into a computer applica-
tion via USB. The option adds a real-time acquisition facility to
the Sound Insulation Reporter software.
Alternatively you can write your own unique measurement ap-
plications for sound level monitoring or automated measure-
ments, e.g. with MS Excel or LabView. A documented com-
mand set for data retrieval via USB is available. The following
XL2 measurement functions are supported:
Sound level meter and spectrum analyzer SLMeter/RTA•
Vibration Meter VibMeter•
FFT Analyzer + Tol•
RT60 reverberation time•
Audio analyzer RMS/THD+N•
High resolution RTA function 1/12 Oct + Tol•
The Remote Measurement Option includes the functionality
available in the Projector PRO option.