Options for XL2 Analyzer

The Type Approval Option, when installed on your XL2, upgrades the instrument to the XL2-TA, the sound level meter for certified measurements. The XL2-TA, together with the M2230 or M2340 microphone and Shroud jacket, forms a type-approved sound level meter offering class 1 performance in accordance with IEC 61672:2014, IEC 61260:2014, ANSI S1.4:2014 and ANSI S1.11:2014 standard. The Type Approval Option includes the Shroud MXA01.

Type approved sound level meter configuration:

• XL2-TA Sound Level Meter (XL2 with Type Approval Option installed)
  • Measurement Microphone M2230 or M2340
  • Shroud MXA01
  • Firmware V4.71 (AT, CH, DE)
  • Firmware V4.21 (FR)
• NTi Audio Class 1 Sound Calibrator
• Optional
  • Extended Acoustic Pack
  • ASD Cable 5 m, 10 m or 20 m
  • Mains Power Adapter
  • Wind Screen 50 mm or 90 mm
  • Weather Protection WP30
  • XL2 Input Keypad
  • Microphone Holder MH01

XL2 Type Approval Certificates:

• Austria  
• France (LNE) 
• Germany (PTB)  
• Poland
• Hungary
• Switzerland  
• China  

The Extended Acoustic Pack, when installed on your XL2, supports the daily tasks of acoustic consultants. It offers additional features for sound level logging and acoustic measurements, such as recording linear wav-files, percentile statistics, sound exposure level, 100 ms logging, event monitoring, reverberation time in 1/3 octave resolution, Zoom-FFT with 0.4 Hz resolution and many more.
 

• SLMeter/RTA function
  • Recording of wav-files (24 bit, 48 kHz), a new wav-file is started after each hour (max. wav-file size 512 MB)
  • Percentiles for wide band and spectrum with flexible setting from 0.1% to 99.9%
  • Sound Exposure Level LAE
  • 100 ms logging
  • RTA logging of Lmin and Lmax
  • Event-triggered audio and data recording
  • Time weighting: Impulse (LxI, LxIeq with x= A, C, Z)
  • True peak level in 1/1 and 1/3 octave resolution
  • Clock-impulse maximum level (TaktMax) and values as specified in DIN 45645-1
  • Impulsiveness detection in accordance with BS4142:2014 and NordTest ACOU 112
• FFT function
  • High-resolution Zoom-FFT with selectable frequency ranges and resolution up to 0.4 Hz in the range of 5 Hz to 20 kHz
  • Recording of linear wav-files (24 bit, 48 kHz)
• Reverberation Time function
  • Reverberation time in 1/3 octave resolution

NTi Audio #: 600 000 339

The XL2 Analyzer, with the STIPA Option installed, measures the speech intelligibility according to the latest revision of standard IEC 60268-16:2020 (edition 5) and older editions. It offers ambient noise correction and automated averaging for repeated measurements. The XL2 displays the speech transmission index (STI) and the common intelligibility scale (CIS), accompanied 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
• USB Flash Drive 
  (included with XL2)

NTi Audio #: 600 000 338

STI Reporting Tool

An XL2 Analyzer, with the Cinema Meter Option installed, forms the dedicated solution for efficient calibration and repetitive verification of cinema loudspeaker systems in accordance with SMPTE ST 202:2010 and SMPTE RP 200:2012. An interactive assistant guides the user through the calibration and verification process. The M2211 Measurement Microphone with class 1 frequency response is recommended for accurate measurements in cinemas, as the specified tolerance bands are very tight.

Features

• Generate measurement templates including the X-curve fitting best to the chosen cinema size.
• Calibration assistant for reference data recording of each channel as well as headroom tests.
• Averaging measurement results of different microphone positions.
• Verification assistant for periodic cinema measurements and comparison against the reference data.
• The Cinema Meter Option includes the functionality available in the Spectral Limits Option.

NTi Audio #:

• Spectral Limits Option: 600 000 376
• Cinema Assistant Option: 600 000 378

User Manual

The Spectral Limits Option extends the XL2 function range in both, the sound and vibration mode. It adds noise curves, trace capturing, relative curve display and comprehensive tolerance handling for the FFT Analysis and high resolution spectral analysis up to 1/12th octave. The vibration mode is enabled upon installing the vibration option.

Features:

• FFT and 1/12 octave Analyzer
  • Capturing of multiple readings into the internal memory
  • Comparing measurement results against captures with relative or absolute curve display
  • Comprehensive tolerance handling with tolerance masks based on captures for passed/failed measurements
  • Export and import of tolerance and capture files
  • Recording of linear wav-files (24 bit, 48 kHz); (requires optional Extended Acoustic Pack)
• 1/12 octave Spectral Analyzer
  • High resolution RTA function 1/12 Oct + Tol
  • Selectable 1/1, 1/3, 1/6 and 1/12 octave resolution
  • Frequency band listening at rear speaker and headphone
  • Sound Mode: 11.5 Hz to 21.8 kHz
  • Vibration mode: 0.73 Hz to 1.36 kHz
• FFT Analyzer
  • High-resolution Zoom-FFT with selectable frequency ranges and resolution up to 0.4 Hz in the range of
  • Sound mode: 5 Hz to 20 kHz
  • Vibration mode: 1 Hz to 20 kHz
• Sound Level Meter
  • True peak level in 1/1 and 1/3 octave resolution
• Noise Curves
  • In accordance with ANSI S12.2-2008, -1995 and ISO 1996

NTi Audio #: 600 000 376

The Vibration Option turns the XL2 Analyzer into a professional vibration meter with broadband measurements and spectral analysis in 1/3 or octave resolution. The XL2 Vibration Meter determines vibration acceleration, velocity and displacement with standard-compliant weighting filters in the frequency range from 0.8 Hz to 2.5 kHz. Detailed recording of measurement data and audio files allow for comprehensive evaluation and reporting. In addition, the XL2 Vibration Meter comes standard with an FFT analysis and an oscilloscope function. Selectable FFT frequency ranges from 1 Hz to 1.69 kHz allow a detailed examination of the measured vibrations.

The Spectral Limits Option adds functions to the Vibration Meter including a zoom FFT up to 20 kHz and a 1/12 octave band analysis from 0.73 Hz to 1.36 kHz. Also, it adds the ability to record reference spectra and set tolerances for pass / fail quality control measurements. The Remote Measurement Option allows the real-time acquisition of measurement data directly into a computer application via the USB interface. A documented command set is available.

The Vibration Option requires the XL2 firmware V4.04 or higher. 

NTi Audio #: 600 000 436

The Remote Measurement option allows the real-time acquisition of XL2 measurement data directly into a computer application via USB.

For Building Acousticians, the option adds a real-time acquisition facility to the Sound Insulation Reporter software. To further enable the import of measurement data into the XL2 Sound Insulation Reporter software, the connected XL2s also require an activated Sound Insulation Option.

Alternatively you can write your own application, e.g. with MS Excel or LabView. This allows you to program your unique measurement applications for sound level monitoring or automated measurements. A documented command 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/CPB
• FFT analyzer
• Reverberation Time
• Audio analyzer RMS/THDN
• High resolution spectral analyzer 1/12 Oct + Tol

The Remote Measurement Option includes the functionality available in the Projector PRO Option.

NTi Audio #: 600 000 375

User Manual

Data Explorer is a PC-based software application with a powerful data processor for easy and fast analysis of sound level measurement data recorded by the XL2 or XL3. Visualize, analyze and control millions of data points with this tool that is dedicated to acoustic consultants and noise measurement professionals. It provides a convenient way to view and manage your data and quickly create customized reports.

The import of logged noise level data into the Data Explorer software is enabled by an activated license for the individual instrument. 

NTi Audio #:

• XL3 Data Explorer Permanent: 600 000 717
• XL3 Data Explorer 365: 600 000 730
  (annual subscription service)
   
• XL2 Data Explorer Permanent: 600 000 430
• XL2 Data Explorer 365: 600 000 431
  (annual subscription service)
   

Read more ...

Sound Insulation Reporter is a PC-based software application that provides all the standard reports for Airborne, Impact and Facade sound insulation measurements. Designed for acoustic consultants, this comprehensive tool uses data gathered by the XL2 or XL3 Acoustic Analyzer, and quickly returns graphical analysis for all measurement positions.

The import of measurement data into the Sound Insulation Reporter software is enabled by an activated license for the individual instrument.

NTi Audio #:

• XL3 Sound Insulation Reporter Permanent: 600 000 718
• XL3 Sound Insulation Reporter 365: 600 000 731
  (annual subscription service)
   
• XL2 Sound Insulation Reporter Permanent: 600 000 432
• XL2 Sound Insulation Reporter 365: 600 000 433
  (annual subscription service)
   

Read more ...

The Room Acoustics Reporter is a PC software for automatically generating reverberation time measurement reports and analyzing the noise spectrum. The software supports acousticians and experts in the visualization and detailed evaluation of measurement data recorded with the XL2 or XL3 Sound Level Meter.

The import of measurement data into the Room Acoustics Reporter software is enabled by an activated license for the individual instrument.

NTi Audio #:

• XL3 Room Acoustics Reporter Permanent: 600 000 719
• XL3 Room Acoustics Reporter 365: 600 000 732
  (annual subscription service)
   
• XL2 Room Acoustics Reporter Permanent: 600 000 440
• XL2 Room Acoustics Reporter 365: 600 000 441
  (annual subscription service)
   

Read more ...

The Sound Power Option enables the import of measurement data into the Sound Power Reporter software.

Sound Power Reporter is a PC-based software application that provides comprehensive reports for sound power measurements. Designed for industrial professionals, this comprehensive tool uses data gathered by the Sound Level Meter, and quickly returns graphical analysis of all measurement positions.

Features of the Sound Power Reporter software:

• Visualization of all measurement
• Customized Reporting
• ISO 3741, ISO 3744, ISO 3746
• ANSI-ASA S12.51, S12.54, S12.56

NTi Audio #:

• XL2 Sound Power Option: 600 000 434
  (permanently installed option in XL2)
  or
• Sound Power Reporter 365: 600 000 435
  (annual subscription service)
   

Read more ...

Get your full report ready within minutes of completing the measurement. Just open the Sound Reporting Tool with Microsoft Excel and load the data file from the XL2 Sound Level Meter. The tool extracts all available data such as measurement date, start time, etc. and generates sound level charts. The entire measurement period is graphed with the relevant sound levels and legal limits where appropriate, allowing you to visualize the sound levels at a glance.

Sample Live Sound Report

Sample Graph from the Report

Download free Reporting Tools