AUDIO & ACOUSTIC MEASUREMENT SOLUTIONS

A u d io & A c o ustic
Made in Switzerland

TEST AND MEASUREMENT SOLUTIONS

www.nti-audio.com

THE SOUND LEVEL METERFOR PROFESSIONALS AND
SPECIALISTSClass 1 Sound Level Meter
Spectrum Analyzer
STIPA Analyzer
Reverberation Time Analyzer
Room & Building Acoustics
Analyzer

XL3 remote access via mobile device

2The XL3 sets new standards
The XL3 is a professional Sound Level Meter andAcoustic Analyzer for noise measurements, roomand building acoustics. It is optimized to the needs ofexperts. Right out of the box it offers a variety of easyto-use functions.

Swiss Precision Engineering
This Sound Level Meter builds on the latest processor and display
technologies to provide a comfortable user experience. Highperformance hardware packed in a robust housing offers precise
96 kHz data sampling in 32-bit resolution. With a frequency range
from 0.3 Hz – 40 kHz, the XL3 is prepared for infra and ultra soundmeasurements. With single-range measurement and the automatedsensor detection reading the electronic data sheet from the connected
measurement microphone, the XL3 Acoustic Analyzer is indeed theequivalent of a Swiss Army knife.

Always connected
The
included
NTi
Connect
service(connect.nti-audio.com)
allows you to remotely operate your XL3 from any mobile device anddownload data to your computer. Measurement data, reports and audio
files can also be automatically saved to a cloud drive.
All these features and more make the XL3 the ideal device for room andbuilding acoustics measurements, live sound monitoring, or as a key partin a Noise Monitoring Terminal.
XL3 Acoustic Analyzer

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XL2 – the Analyzer for every Application

The XL2 is a powerful Sound Level Meter, a precision Audio Analyzer and a comprehensive Vibration
Meter in one instrument. The XL2-TA version is a Type Approved sound level meter.

Intuitive Operation – available within seconds!
The intuitive user interfaces are suitable for professionals and newcomers alike. The instrument canbe configured with simple or comprehensive measurement parameters, or with predefined profiles,
without first having to read the user manual.

Ready for any Challenge
The considerable choice of functions have been optimized for a wide range of measurement
applications, such as audio-acoustic system design and installation, public address and voice alarmsystems, environmental noise monitoring, room and building acoustics, live events, occupationalsafety, and automated quality control.

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A Precision Instrument
Multi-functional setup
Evacuation Systems
Electroacoustic Installations
Live Sound
Vibration Meter
Quality Control

ACCESSORIES
Calibration
Certificate

Sound Calibrator# 600 000 388

Calibration Certificate# 600 000 018

ASD Cable 5/10/20 m# 600 000 336/64/65

NetBox# 600 000 450

89.4 dBA
85.3 dBLeq

Input Keypad# 600 000 384

System Case
# 600 000 701

Ever-ready Pouch# 600 000 335

XL2 Projector(free Software)

XL2 Sound Level Meter, Audio & Acoustic Analyzer

5MeasurEye

MeasurEye is a cloud-based monitoring solution for construction sites, manufacturing facilities
and communities, where you can gather, secure, combine, and alert on all your environmental
data in real-time.
With MeasurEye, you have the flexibility to establish and effortlessly manage remote monitoring
projects. Conveniently link your devices to MeasurEye and initiate the collection of measurement
data. Configure triggers to detect events and the system will automatically send email alerts
when an event occurs (trigger limits exceeded).

All data in one place• Noise Levels• Vibration• Noise Direction• Air Quality• Weather• State of Health

• GPS

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24/7 Unattended Environmental Monitoring

MeasurEye Platform

Combined Event Evaluation
Evaluation conditions can be set for specific hours of the day
and certain days of the week. Beyond these simple conditions,an event can also raise an alarm when an advanced evaluation
condition is met, combining values from various sensors.

Noise Classification with AI
MeasurEye can optionally classify event alerts. A confidence
score is assigned to various classes of noise, such as speech,
machinery, traffic, and others.
Example Event Evaluation

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Unattended Monitoring with NoiseScout
Residential South
Residential WestX

LAF 72.0 dBX

LAF 64.2 dB

LCeq5˝		 66.8 dB

Mobile Data

LAN

Wind

Rain

NoiseScout offers effortless yet comprehensive noise monitoring: all sound levels are recordedby the Sound Level Meter and available online for remote monitoring and download. Audio files
are produced when limits are exceeded, and the recordings are identified and classified using AI.
In addition, an external weather station and a GPS Sensor can be connected.

Noise Monitoring through a Web Browser
Noise is recorded by the sound level meter and presented live on the NoiseScout
website. Alarm emails inform the user when a limit is exceeded at the site. In suchcases, audio recordings of the loudest events, as well as the ability to listen inlive to the monitoring station, allow for immediate identification of the cause of
the noise.

NoiseScout Portal

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Environmental Noise Measurements

M2230-WP
Measurement
Microphone

The Sound Level Meter has all the features needed to measure and monitor noise. The
device measures all the relevant levels simultaneously and, if needed, will record anaudio file during the entire measurement or on triggered events.

Weatherproof equipment
The outdoor measurement microphones offer a robust and easy-to-use solution for the
precise measurement of noise levels in outdoor applications.
The weatherproof case protects the Sound Level Meter against adverse weather conditions while monitoring industrial and neighborhood noise. The protective case offers
plenty of room for batteries and other accessories.

Professional Reports with Data Explorer
For post-processing, the measurement data, including all events, can be loaded fromthe measurement device, from MeasureEye, or from the NoiseScout web portal, into
the Data Explorer PC software, and comprehensively analyzed. Data Explorer automatically marks tonal and impulsive sounds and calculates the Rating Level Lr.

Weatherproof Protection Case

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Building Acoustics
The Building Acoustics Kit, for determining
airborne sound, impact sound and facadesound insulation, includes the XL3 Sound
Level Meter, the DS3 Docecahedron omnidirectional sound source, the PA3Power Amplifier and the Sound Insulation
Reporter PC software. The portfolio iscompleted with the TM3 Tapping Machineand /or the IB01 Impact Ball as a lightweight and easy-to-use sound source.
All results are recorded according to thecurrent standards.

Sound Source in accordance with ISO 16283
The omnidirectional DS3 Dodecahedron Speaker provides
121 dB of sound power with an equalized frequency
response, and weighs only 7.5 kg. For impact soundanalysis, the type-approved TM3 Tapping Machine and theIB01 Impact Ball are available.

TM3 Tapping Machine

Simultaneous Measurement in the Sending and Receiving RoomThe XL3 Sound Level Meter measures the acoustic spectrum in the sending and receiving room. If you
have two or more devices, you can trigger the measurement remotely and record in parallel.

Professional Measurement Report
The Sound Insulation Reporter PC software provides detailed data analysis and produces
standardized sound insulation measurement reports.
IB01 Impact Ball

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Room Acoustics

With the Room Acoustics Kit you can analyze the acoustic conditions in enclosed
spaces, such as residences, classrooms, auditoriums, offices, theaters, concert halls,
and railway stations.

Precision and power
The DS3 Dodecahedron Speaker Kit generates the omnidirectional sound field required
for the analysis of room acoustics. The power is supplied by the portable PA3 Power
Amplifier, which includes a built-in noise generator with an equalized output signal specifically designed for DS3 Speakers. Alternatively, the ẟ -Clapper provides a convenientsource for carrying out correct reverberation time measurements quickly and easily.

DS3 Dodecahedron Loudspeaker
and PA3 Power Amplifier

Optimizing the Room Acoustics
The XL3 Sound Level Meter measures the sound pressure levels as well as the background noise and the reverberation time. The data reports are created by the Room
Acoustics Reporter PC software, which also has the ability to simulate the effect of avirtual addition of sound-absorbing materials in the room. The final measurement reportcompares the reverberation time before and after the improvements have been made.

ẟ-Clapper with hearing protection

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Live Event Monitoring

Use the XL3 or XL2 Sound Level Meter to set up sound systems and monitor
sound levels in the venue and in the neighborhood during live events.

Compliance with legal limits
The measuring device helps you to comply with legal regulations. Numerous
predefined configurations according to various country standards,
such as DIN 15905-5, are available free of charge. Operation is therefore limited
to the "Start" and "Stop" buttons at the start and end of the event. The XL3
records the entire event in accordance with standards and also provides thenecessary data for comprehensive documentation.

Transparency through networking
The XL3 can be networked via LAN, WLAN or mobile data and operated via
a web browser. This allows the device to be operated from a secure location
during the event. In addition, website links can be generated by the XL3 that allow
read-only access. This allows stakeholders such as authorities, security officers orneighbors to be provided with live readings during the event.

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XL3 measurement mirrowed as
read-only access on tablet

Vibration Meter

The Vibration Option turns the XL2 into a Vibration Meter, for the inspection of machine parts. In
combination with our smart ICP adapter, which stores the calibration data of the vibration sensor,
the XL2 differentiates between an accelerometer and a microphone and automatically switches tothe corresponding measuring mode.

Acceleration, Velocity and Displacement
The device measures acceleration for frequencies down to 0.7 Hz and determines the speed anddisplacement. A variety of application-specific filters and time weightings are available. The data logger
records all measured data in plain text format.

Spectral Analysis
Simultaneously, the XL2 calculates the vibration spectrum as an FFT and in octave or 1/3rd octave
resolution in the range of 0.8 Hz to 2.5 kHz, while a cursor automatically indicates the dominantfrequency. You can also save a reference spectrum on the meter for comparison with the current
spectrum.

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Voice Alarm System Commissioning

Speech Intelligibility STIPA
Voice alarm systems in airports, railway stations, shopping malls or concert venues
need to deliver understandable announcements in case of emergencies.
The XL3 or XL2 Acoustic Analyzer measure the speech intelligibility of paging systems
and voice alarm systems in accordance with the IEC 60268-16 and DIN VDE 0833-4
standards. The devices determines STI and CIS speech intelligibility values and areparticularly efficient at verification in demanding rooms where many measuring points
are required.
You can record or manually add ambient noise before or after the measurement, andsee what effect that has on the speech intelligibility value. The average and the statistical deviation of several measurements is automatically calculated. The STIPA Reporting
tool helps you create professional reports.

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Acoustic Sound Source for STIPA

TalkBox – STIPA Reference Sound Source

TalkBox

In order to test the entire signal chain from an announcer‘s lips to the audience‘s ears, theannouncement microphone and the acoustics of the control room must also be considered in themeasurement.
The NTi Audio TalkBox is an acoustic reference sound source designed for this end-to-end
measurement of the speech intelligibility of announcement systems. The TalkBox generates a standardized IEC 60268-16 STIPA test signal that emulates an announcer with a sound level of 60 dBA
at a distance of one meter. In this way, an actual announcer is emulated during a STIPA measurement. In addition, the TalkBox offers other test signals such as sine, pink and white noise. The
TalkBox generates test signals with very little harmonic distortion over the frequency range of 100 Hz
to 10 kHz for repeatable and accurate speech intelligibility measurements.
Each TalkBox is individually calibrated in our anechoic chamber. The built-in DSP with FIR filter
technology equalizes the signal in both magnitude and phase for a perfectly flat frequency response.

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Minirator MR-PRO

The MR-PRO is a powerful signal generator for professionals. The device generates
audio test signals of the highest quality, including sine, pink and white noise, polarityand delay test signals, chirps, and sweeps.

Play Custom WAV Files
A collection of WAV files is stored in the internal flash memory. You can also upload
your personal test signals to the device and play them from there.

Versatile Troubleshooter
The continuous display of the connected impedance, load symmetry, phantom voltage
and the integrated cable test help with fast troubleshooting.
The MR2 Minirator is a simpler version of MR-PRO with reduced functionality.

Minirator MR-PRO

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Flexible Sound Generator – Impedance Meter
WAV File Playback

Impedance Measurement

Flexible WAV File Playback

Impedance Measurements

If you have specific measurement requirements, andneed a particular test signal in the generator, the USB
interface allows you to feed a multitude of different signal
types into the MR-PRO.

The MR-PRO can determine the complex impedance ofa connected load, such as a row of 100 V loudspeakers,
with magnitude and phase at freely-selectable frequencies.
Optionally, the MR-PRO can also display the apparent
power with the associated phase angle instead of theconnected impedance.
The measurement result allows easy and effective
verification of the wiring of a connected 100 V speakerline or detects incorrectly-connected or defective
speakers. Useful for troubleshooting: when playing
sinusoidal signals, the impedance and the symmetry aredisplayed.

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FX100 Audio Analyzer

FX100 Audio Analyzer

Professional Analog and Digital Audio Analyzer
The FX100 is a professional audio analyzer that is designed to be tailored to fit your application.
The device offers a variety of analysis functions, and provides customer-specific evaluation of theresults. Powerful DSPs allow measurement cycles of under 1 second. The two-channel base unit
can be expanded with two additional full channels, impedance modules, switchable inputs andoutputs, or a digital audio interface.

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Fast. Precise. Reliable.
Time is Money

Swiss Precision

Test engineers are often under time pressure to commission a new production test. The FX100 Analyzer provides
easy system integration for rapid testing of electroacoustic
products. Thanks to the consistent performance-optimized
design, the instrument delivers with impressive speed.

Sturdy electronics, powerful DSPs and sophisticatedalgorithms ensure that measurements, including a Pass/
Fail rating, are executed as quickly as possible in real time.

Customized Solutions
Thanks to its modular concept, the FX100 Audio Analyzer
fulfills almost every requirement. By selecting theappropriate plug-in modules, you can create exactly theconfiguration your application needs.

User-friendly
Experience how easy the operation of a measuring device
can be. Thanks to its sophisticated design, the FX-Control
PC software provides intuitive handling of measurement
and test sequences.

First-class Support
All FX100 customers benefit from local and expert advice.
Our subsidiaries and partners provide you with a first-class,globally-available service network. Free firmware and software updates complete the service package.
FX100 with Channel Extension and Input Switcher

EXTENSION MODULES
101100101Ω

Channel Extension
2 CH -> 4 CH
# 600 060 010

Output Switcher
FX-OS# 600 060 016

Input Switcher
FX-IS# 600 060 013

Speaker Impedance
FX-SIH (25mA–10A)# 600 060 021Ω

Speaker ImpedancePower FX-SIP# 600 060 022

Filter for Class D
Amplifier FX-DF# 600 060 026

Digital Audio
FX-AES# 600 060 024

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Proven Technology for Acoustic Quality Control
Wishes Come True

Numerous Applications

Do your test bench requirements often change? Perhaps
you would like the test duration be shortened despitedifficult environmental conditions? The FX100 Audio
Analyzer is the ideal solution for your application thanks to
its adaptability, measurement speed and reliability.

Configure the test signal with individual levels and frequencies. Monitor the level, harmonic distortion, and phase
response, or use the high-resolution FFT spectrum todetail the behavior of the DUT. Use different sweep
measurement methods to analyze the behavior of the DUT
by frequency and amplitude.

Superior Functionality
Do you want to check mobile phones, MP3 players orsimilar products that do not have an audio input? Take
advantage of the FX100‘s unique ability to detect andanalyze test signals played by an external playback device.
In the setup, you simply transfer the test signal as WAV or
MP3 file from the FX100 to the Device Under Test (DUT).
The FX100 automatically detects the played signal andprecisely measures the audio characteristics of the DUT.

GlideSweep with Level and Distortion Analysis

MODULE AND ACCESSORIESPureSoundTM
Rub & Buzz
# 830 000 200

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Measurement Mic.
M2010: # 600 040 010
M2015: # 600 040 015

Bluetooth Box# 600 061 021

100V RT-IB
Impedance Box# 600 010 395

IS-1002
Input Switcher# 600 010 425

Turntable TT01
# 600 061 020

Digital MEMS Mic
Interface# 600 090 000

User-Friendly
Simply Better

Versatile

The Windows-based FX-Control software not only allows
unrestricted control of the meter, but also offers several
helpful additional functions. Freely-configurable graphs
show the detailed measurement results, while the test
parameters and measurement functions are defined via
separate input fields. This outstanding ease-of-use andflexibility make it easy to set up and execute even complex
measurement sequences.

The FX-Control software offers you a special advantage
in that you can extend the standard measurements withcustomer-specific requirements. Mathematical functions
can be applied to measurement results and results can belinked together. You can analyze selected data according
to your own needs, link independent results, automaticallyderive tolerance limits and much more.

A2B Analyzer

A2B Analyzer

A2B Microphone
Connectivity Kit# 600 000 601

Digital I/O
Adapter Box# 600 061 017

FX-Control: Customer-specific measurement configuration

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Loudspeaker Test System
Acoustic Quality Control

The Right Solution

The FX100 Loudspeaker Test System with the RT-Speakersoftware is designed for quality testing of active and passive loudspeakers. It supports the analysis of frequency& impedance response, sound pressure level, resonancefrequencies, Thiele/Small parameters, etc. In addition, thesystem supports the NTi Audio PureSound™ option for
detecting audible defects as well as statistical analysis
such as trend analysis, histograms and Cpk/Ppk processcontrol.

The RT-Speaker software is available in three editions. This
covers all loudspeaker testing environments; from manual
processes to fully automated.

Simple Operation
A big advantage is the practical and clearly-understandable
software structure. It leads the user intuitively through theparameterization process. The software strictly separates
administrator and user roles thus allowing access tonecessary functions only, e.g. users on the production line
may be able to run but not configure tests.

Speaker Test Software

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Smooth Setup of Pass/Fail Criteria
Before a new product goes into production, Pass/Failcriteria must be defined.
The FX100 + RT-Speaker Speaker Test System facilitates
this process considerably. A special mode for recording
the reference data (golden sample) simplifies the rapid
identification of clearly intact and defective parts and ofborderline matches. The desired Pass/Fail criteria can thus
be quickly and reliably established.

Microphone Test System
Wide Range of Applications

Polar Plot

The FX100 Audio Analyzer, in conjunction with the
RT-MicFX software, is ideal for the complete quality
inspection of microphones. These include capsules(electret, condenser or dynamic), analog or digital
MEMS microphones, and A2B™ microphones as well ascomplete products such as studio microphones, headsets
or even mobile phones. The system captures frequency
response, distortion (THD), linearity, sensitivity, andsignal-to-noise ratio (SNR) within a very short time.

In combination with the optional turntable, the system candetermine the directional characteristic of microphones
through the recording of their polar plots.

Other Options
If required, the system can be expanded with an ampere
meter or ambient sensors, to capture additional parameters such as the microphone power consumption, ambient
temperature, altitude and barometric pressure.

Microphone Measurement

Polar Plot

Microphone Test Software

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Measurement Microphones
Microphones for the XL3 and XL2 Analyzers
All microphones are 48 V phantom powered and include an electronic data sheet.
As soon as a microphone is attached to the analyzer, the microphone model, thesensitivity, and the calibration data are automatically detected. This ensures accurate
measurement results.

Features• Omni-directional, free-field microphone• Class 2, Class 1 or type-approved• Frequency range 5 Hz – 20 kHz

M2230 / M4261

Microphones to suit your requirements:

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MODEL

DESCRIPTION

M2230

Class 1 measurement microphone with metal diaphragm for measurements according to the IEC 61672 standard(type-approved with the XL2-TA)

M2340

Class 1 measurement microphone, system self-test (CIC)

M2211

General purpose measurement microphone with metal diaphragm and Class 1 frequency response

M2215

Measurement microphone with metal diaphragm for high acoustic levels (up to 153 dB) and Class 1
frequency response

M4261

Cost-effective Class 2 measurement microphone for general sound level testing, commissioning andservice of audio-acoustic installations

WP30 / WP61

Weather Protection for the microphones M2230, M2340 and M4261

Microphones for the FX100 Analyzer
The M2010 and M2015 are high-performance measurement
microphones dedicated to research, design lab, end-of-line
testing and service. They are particularly suited for applications
with restricted available space.

MODEL

DES CRIP T ION

M2010

Extended performance microphone,with metal diaphragmM2015

For high acoustic levels (155 dB),with metal diaphragmM2010 / M2015

Outdoor Measurement Microphone
Combined with the WP30-90, WP30-150 or WP61 weather protection, the outdoor
measurement microphones offer a robust and easy-to-use solution for the precise
recording of noise levels in outdoor applications. The diameter of the windscreen measures 90 mm for the WP30-90 and WP61 models, while it is
150 mm for the WP30-150 model. The corrosion-free polymer housing,wind screen, waterrepellent membrane and bird spike provide excellent protection fromrain, wind, dust and perching birds.
The outdoor microphones consist of a measurement microphone and the applicable weather
protection:• M2230-WP: M2230 + WP30-90 or WP30-150 Weather Protection• M2340-WP: M2340 + WP30-90 or WP30-150 Weather Protection• M4261-WP: M4261 + WP61 Weather Protection
WP30-150 / WP30-90 / WP61

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About NTi Audio

NTi Audio AG was founded in 2000 by a group of dedicated engineers,with the aim of providing precise test and measurement solutions at
attractive prices. We are driven by the desire for innovative products andstrive for maximum customer satisfaction. Today, we are a leading global
manufacturer of measurement instruments and solutions for the audio,
acoustics and vibration industries.
Our subsidiaries are located in Germany, Great Britain, France, USA,
China, Japan and Korea. The head office is in Liechtenstein. In addition,
NTi Audio maintains a network of sales and service partners in more than
50 countries around the world.

Follow us on Social Media and stay informed!

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Calibration service
The NTi Audio calibration services provide documented and traceable verification that yourNTi Audio instrument meets the published specifications. Annual calibration and adjustment cycles
ensure the highest accuracy and follow the requirements of the EN ISO/IEC 17025 standards. The
calibrating instruments used are traceable to a national standard. Detailed service guidelines arelisted at www.nti-audio.com/service.

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info@nti-audio.com
www.nti-audio.com

XL3, XL2, M2230, M2340, M2211, M2215, M4261, WP30-90, WP30-150, WP61, DS3, PA3, TM3, ẟ-Clapper, Impact Ball IB01, NoiseScout, Minirator MR-PRO,
MR2, TalkBox, Digirator DR2, Digilyzer DL1, FX100, RT-Speaker, RT-MicFX, PureSound, FX-Control Software, Data Explorer, Sound Insulation Reporter andRoom Acoustics Reporter are trademarks of NTi Audio AG. ICP is a registered trademark of PCB Piezotronics.

07.24

All information is subject to change without notice.