User manual

Appendix

Limits

This proﬁle is conﬁgured with the following limits, which trigger

the lights on the limit button and external Digital I/O Adapter.

This facilitates a quick response to sound levels that exceed

these limits.

Measurement Results

You may import the log ﬁles into a report generator soft-

ware based on MS Excel, providing automatically-completed

live event reports with noise level charts. The report genera-

tor software is a free download on the support website at

https://my.nti-audio.com for all registered XL2 customers.

Appendix 3: Description Sound Levels

A-Frequency Weighting Filter in accordance with

IEC 61672

Applicable for most common sound pressure level

measurements, compensating for human hearing

perception at lower sound pressure levels.

C-Frequency Weighting Filter in accordance with

IEC 61672

Applicable for very high sound pressure levels,

compensating for human hearing perception at

high sound pressure levels; typically used for mea-

surement of peak values, e.g. L

Cpeak

Capture

This selection offers the reference curve, which has

been previously stored with Capture in the spec-

trum analyzer of the SLMeter function.

Application example:

Comparing the performance of the left and right •

speakers in a live event sound setup.