SPM9613 Community Noise Prediction
Software, Version 2
Born from our years of estimating and predicting noise from industrial
noise sources, Power Acoustics, Inc. has developed and optimized a
low-cost computer program for analyzing community noise and sound
propagation emitted from a variety of noise sources. The software
is based on the ISO 9613 parts 1 and 2 standards. SPM9613 provides
calculations at specific field points (listeners) and predictions of A-
and C-weighted sound level contours as well. We sell this
software as a low cost alternative to more expensive and difficult to
use computer programs.
The original release of our community noise sound
propagation model, SPM9613™ was in January 1999. Version 2 was
released in February 2002. The software has a Windows based user
interface and enables users to perform multi-source and distributed
source predictions with barriers and reflective surfaces. Because
the
software is developed by a company that is also an end user, it is
extremely flexible and easy to use.
SPM9613 Features and Extensions
- Fast setup and calculation times
- Automatic breakdown of large 3-D or line
sources into multiple point
sources
- Multiple barriers
- Reflections - automatic image sources
- Ground Attenuation with defined limits
- Miscellaneous Attenuation (Foliage,
Industrial Sites)
- Graphical capability to assure correct
user inputs
- Plan views of equipment, barriers,
foliage or industrial sites, and
observer locations
- Source sound power level spectrum plots
and directivity plots
(vertical and horizontal)
- Sorted sound source waterfall plots at
each observer location
- Contour plotting of A or C weighted levels
- 3-D Ground Elevation plots
- Ground Hardness contours
- Extended Octave Band Center Frequency
range - 16 to 8000 Hz
- Computation of C-weighted levels
- Source sorting on A or C-weighting
- Customizing services available
- MS Windows 95, 98, NT, 2000 and XP
Compatible
All calculations, sound sources, barriers, ground elevations and
observers are represented internally within SPM9613 in three dimensions
(x, y, z coordinates). Graphical output is
presented in plan views of the equipment and observers and with
contour plots.
Click on links below for downloads and SPM9613 Pricing
Download a
Specification Sheet
Download a Technical
User's Manual
Download a
Demo
Single & Multi-user
Pricing
Below are some screen shots and explanations of how they are used.
Project Form
INPUT
Screen 1: This form is where the project starts. The user
can enter data related to weather conditions and level of detail he
wants to add to the calculations. Separate tabs exist for
sound sources, barriers industrial sites, and observer information to
be added.
|
Sound Source
Form
INPUT
Screen 2:
|
Sound Screen
(Barrier) Form
INPUT
Screen 3:
|
Industrial Site
or Foliage
Area
INPUT
Screen 4:
|
Observer
Locations
INPUT Screen 5: Observers
are defined on this page with x, y, z coordinates. The types of
ground between the sound source and the observer can be defined here
also. (0 is hard ground like concrete, 1 is very soft ground like
plowed earth on a farm.
|
Contour Area
INPUT
Screen 6: This form allows
the user to define the area that the sound level contour will be
generated over.
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