I have an app for my Android phone called decibel which records and plots
decibel levels over time. It was free.
It has a calibration option which I have never used, but maybe it would be
worth getting to determine if it is accurate enough for what you need.
San Antonio, Texas
On Behalf Of Ian Martin (main)
Sent: Wednesday, September 26, 2012 7:18 PM
Subject: RE: [Nature Recordists] measuring noise levels - help needed
Jaycar in Australia sell a series of three sound level meters from cheap
($40) medium ($100) to expensive (400). However AFAIK it is only the
expensive one that is provided with a calibrator, although one of the others
might be enough for your purposes i.e. showing what you are having to put up
with is over the top, without having "court room" quality data. Other than
at the adversarial legal level most people in the council (or the police?)
would probably accept readings from one or the other meters.
... and search on sound level meters
<naturerecordists%40yahoogroups.com> ] On Behalf Of vickipowys
Sent: Wednesday, 26 September 2012 4:57 PM
Subject: [Nature Recordists] measuring noise levels - help needed
Its spring in Australia, the birds are singing, but school holidays have
just started and kids on motor bikes are doing constant circuits on the
property next door. One new 2-stroke bike is particularly annoying. There
is a 1-minute recording of it on SoundCloud here:
I would like to be able to get a rough estimate of its noise level for legal
reasons. Does anyone know how I can estimate a decibel reading from this
recording? Details of equipment are on SoundCloud.
My legal advice is that I have 'an entitlement to the quiet enjoyment of my
property' and that the 2-stroke motorbike noise constitutes 'a legal
Being able to measure the actual noise level would be a bonus.
Thanks in advance,
"While a picture is worth a thousand words, a sound is worth a thousand
pictures." R. Murray Schafer via Bernie Krause.
Yahoo! Groups Links