A
comment below requests information on the availability of noise meters. Like
mobile telephones there is a wide range available. The following paragraph is
buried in one of the archives.
For
the serious campaigner against noise, a noise level meter is a necessary weapon!
The simplest kind which gives an instantaneous measure of noise level is
sufficient for spot measurements. With the evidence of a decibel figure one’s
complaint has real relevance. The model I use is a TES-1350A made in Taiwan. I
have used it for over two years without problem and its accuracy compares well
with far more expensive models. Specifications, prices, and ordering information
may be seen on the web-site http://www.tes.com.tw/
Evidence
regarding habitual noise levels require an instrument that can give a reading
that has been averaged over several hours, say the ten working hours, or a full
day. However, we usually want to know where a present noise ranks on the
tolerable or intolerable scale of noise such as that illustrated on the noise
table below. For this purpose the TES-1350A is adequate.
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