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CadnaA (Computer Aided Noise Abatement) is the software for the calculation
and presentation, assessment and prediction of noise exposure and
air pollutant impact. Whether your objective is to study the noise immission
of an industrial plant, of a mall including a parking lot, of a new road or
railway scheme, or even of entire towns and urbanized areas: CadnaA is
designed to handle all these tasks.
CadnaA is a transparent and easy to use platform for
everything from simple checks up to extremely complex
and scientiic investigations. The clear separation of the
3D-model in its natural environment and the applied calculation
method offers lexibility unique in this area. It is even
possible to use the same model when noise levels are calculated
based on different national standards without any
need to modify the model.
CadnaA Standard includes all noise
types (industry, road and railway) and
all available standards and guidelines
for each noise type as well as a multi-
lingual user interface.
CadnaA Basic comes also with all noise
types but with one standard or guideline
for each noise type and the user
interface is limited to one of the available
With CadnaA Modular all noise types
can be selected separately and are
combined with one of the available
standards or guidelines for each
Acoustiblok In The Field
Acoustiblok Inc. recently performed an acoustical assessment of
offshore oil platforms at the request of a Fortune 100 oil
company. Extremely high noise levels have become a great concern
regarding health and safety of workers in this industry. The
Acoustiblok All Weather Sound Panel will no doubt be part of our
recommendation as well as mechanical vibration isolation.
Acoustiblok is using the new Cadna-A Acoustical Prediction
software in conjunction within field measurements to develop
solutions to these Acoustical problems.
An oil platform is one of the most hostile environments on Earth,
with corrosive salt spray, high winds, extremes of hot and cold,
and of course petrochemicals and solvents - and any exposed material that
is easily damaged by impact will not last long. Designed for harsh
environments and industrial applications, Acoustiblok All Weather Sound
Panels are the ideal solution for oil platform noise control.
Acoustiblok provides rental of laboratory quality acoustical test equipment,
with technical support, to our customers who require on-site acoustical testing
to validate or compare sound abatement installations. Contact
Acoustiblok for pricing and availability of this service.
The Nor270 is a high power loudspeaker with omnidirectional
characteristics. It fulfils the directional characteristisc
required by the ISO 140-3 Standard and delivers a continuous
sound power level of 120 dB when driven with pink noise over the
frequency range 50-6300Hz via the Nor280 power amplifier.
A version with even higher output is available under the name
Nor270H. The sound power level here is 123 dB when driven with
pink noise over the frequency range 50-6300 Hz using the Nor280
The dimensions are 405 mm diameter and a weight of 14,5 kg. The
high power version (Nor270H) has a weight of 19 kg.
Source signals may be provided by the Sound Analyser Nor121,
the Sound Level meter Nor118, the external MLS generator Nor257
or the internal Noise Generator in the Nor280.
This power amplifier is the 4th generation of specially designed units
for building acoustic measurements from Norsonic. It is less than
half the size and weight, but twice as powerful as its
Specially designed for Building Acoustic measurements
Lightweight and rugged construction
Self contained noise generator
500 Wrms output power
Emits 120 dB sound power level in the 50-5000 Hz frequency
range when used with Norsonic dodecahedron loudspeakers types
Nor250 or Nor270
The Nor130 Series of Sound Level Meters are designed and
manufactured to the latest sound level meter standards and
comprises two products. The Nor131 is a Class 1 (precision)
instrument whilst the Nor132 is designed in accordance with the
less accurate Class 2 requirements. Both meters offer the same
features with exception of the detachable preamplifier which is
only available on the Nor131 version.
* Single measurement range
* Extremely simple operation
* Parallel LAeq and LCpeak
* Large internal memory
* Clock synchronized measurements
* Single measurement range
* USB interface
* Allows use of microphone extension cable (Nor131 only)
* Large back-lighted display
* Complies to IEC and ANSI standards
* Real time 1/1 octave (optional)
* Real time 1/3 octave (optional)
* Statistical analysis (optional)
* Level versus time (optional)
The Sencore 295 SoundPro Audio Analyzer provides complete acoustical test
capability including sound pressure (dB), noise criteria (NC), and spectrum
analysis to identify specific problem components from noise sources and
"band pass" problems with noise abatement solutions.
SOUND PRESSURE LEVEL
Accuracy: ± 0.3 dB SPL, steady state
Resolution: 0.1 dB from 30 130 dBA with supplied mic.
Weighting networks: ANSI A, B, C, and Flat weighted
Method:Plots sound energy levels vs. octave band filtered spectrun.
Band Filters: Octave, 1/3 octave, 1/6 octave, 1/12 octave
Filter Accuracy: ± 0.20 dBu at band center frequency
Level Accuracy: ± 1.0 dB with supplied mic
Method: Implements ANSI S12.2-1995 for comparison of background
noise level octave bands to standard noise criterion curves.
Displays: NC curve, Limiting Band, Octave Band Levels
Signals: Sine Wave, Square Wave, White Noise, Pink Noise
Output Frequency Range: sine wave 11 Hz to 22 kHz,
square wave 11 Hz to 1.6 kHz, white noise 10 Hz to 20 kHz,
pink noise 10 Hz to 20 kHz
The words "soundproofing" (100% Sound elimination), which is impossible to achieve with Acoustiblok material or any other product.
The entire materials provided herein are for reference only Acouiblok reserves the right to modify or revise the content at any time without prior notice.