Pollution Control
Consultancy and Design

Environmental Noise

Our E-mails:


Administration

Engineering 

Accounts

Principal Consultant

Webmaster
    

Opus Operandi


We adhere to the old, good, simple
and quite often forgotten business philosophy that the most effective form of advertising is to satisfy our clients.
 

Our strength


We not only pinpoint,
we also effectively resolve
engineering problems.
 

    Our services in measurements, assessment and control of
           environmental noise include:

 

1.   environmental, interior and occupational noise measurements and analyses with
the latest technology, factory-/NATA-calibrated, Class 1, Brüel & Kjær (B&K)
Modular Precision Real-Time Sound Analyzers type 2250 and 2270:
  B&K2270
  and Modular Precision Real-Time Sound and Vibration Analyzers type 2260 Investigator,
with:
  a. Enhanced Sound Analysis Software BZ7206 (1/3-octave band spectrum range:
6.3 Hz to 20 kHz); 
  b. Fast Fourier Transform (FFT) Software BZ7208 (narrow-band spectrum
from 0.1 Hz to 20 kHz, with resolution better than 0.5 Hz); 
  c. Building Acoustics Software BZ7204 (measurements of sound insulation and
reverberation time); and
  d. Sound Intensity Software BZ 7205 [identification/location of (major) sources of noise];
2.   overview, post-processing and in-depth analyzing of noise measurement data with
Brüel & Kjær (B&K) software packages:
 -   Noise Explorer type 7815; and
 -   Evaluator type 7820;
3.   noise dispersion modeling (computer-aided noise prediction);
4.   product noise rating compliance certification - determination of sound power level
of a mechanical system on the spot, in your laboratory or factory, without the necessity
of placing this system inside the anechoic or reverberant chambers (expensive) or in
the acoustically free-field (in many cases unattainable);
5.   assessment of aircraft, helicopter, road traffic, motor sport, entertainment, industrial
and/or community noise impact on residential premises;
6.   assessment of environmental noise according to New South Wales Industrial Noise Policy
(INP) published in January 2000 by then Environment Protection Authority of New South
Wales (EPA), now New South Wales Office of Environment and Heritage (OEH);
7.   assessment of occupational noise according to requirements of WorkCover Authority (WorkCover), i.e.
  a. Occupational Health and Safety Regulation 2001 - Clause 49,
Chapter 4, Part 4.3, Division 4 - Noise management; and
  b. Australian/New Zealand Standard: Occupational noise management
(AS/NZS 1269: 2005);
8.   selection of optimal noise reduction methods;
9.   design of noise barriers, enclosures and silencers;
10.   redesign recommendations for the silencing of noisy machinery and processes;
11.   recommendations on modifications of both industrial buildings accommodating
noisy equipment and residential buildings exposed to excessive noise;
12.   assessment of road traffic noise with U.S. Department of Transportation Federal Highway
Administration Traffic Noise Model (FHWA TNM; the successor of FHWA Stamina);
13.   certification of compliance with Australian Design Rules:
-  ADR 28/01 : External Noise of Motor Vehicles;
-  ADR 39/00 : External Noise of Motor Cycles; and
-  ADR 56/00 : Moped Noise;
14.   MOST ADVANCED, VERY USEFUL BUT RARELY AVAILABLE measurements of
sound intensity with Brüel & Kjær (B&K) Modular Precision Real-Time Sound Analyzers
type 2260, with Sound Intensity Probe type 3595 (state-of-the-art hand-held sound intensity system).
15.   identification of sources of noise with acoustic cameras, as on the photograph below: