Latest software
October 1st 2007 The EU directives on noise
labelling of many types of
machinery, both domestic
and industrial, are now
implemented into UK law.
These require products to
carry a noise label that gives
the sound power level.
From this, the consumer
can choose the product with
the lower noise emission
and the expert can calculate
the actual sound pressure
level that will be generated
in any given acoustic
climate.
Methods for the
determination of sound
power are defined in a series
of British Standards and
these can be quite complex,
requiring a number of measurements and detailed
knowledge of the acoustic
climate in which the
measurements were made.
To simplify the procedure,
Norsonic AS of Norway,
manufacturer of sound level
meters, has introduced a
software package.
It implements the exact
requirements of the
standards and guides the
user through the set up of
the instrumentation,
controls the measurement
procedure and post
processes the results to give
the overall sound power
level. Campbell Associates
has further information. More articles from Campbell Associates Ltd: | 
