A Noise Nuisance Recorder, such as the Cirrus Trojan, is a noise measurement instruments that can record both noise levels and audio files which are used to measure, record and assess noise nuisance complaints.

Trojan Noise Nuisance Recorder
It is discreetly installed by the Officer in a complainant’s property without the knowledge of the alleged perpetrator of the noise. It is set running and locked so that the equipment cannot be interfered with. Whilst there, the equipment continually keeps a log of the noise levels present.
A unit such as the Cirrus Trojan can record and store many different types of noise data. The most common are the LAeq and the LAFmax levels which can be plotted onto a graph when the measurements have been downloaded to a PC.
The complainant is asked to keep a diary of all the alleged instances of noise nuisance. They are also provided with a remote control to press when the alleged noise occurs.
At this point, the Noise Nuisance Recorder will start to record audio to document the alleged nuisance and to prove what noise was causing the displayed dB(A) level at that particular time. When the alleged nuisance is stopped the complainant presses the remote control again to cease the audio recording and maintain their privacy.
Good quality Noise Nuisance Recorders such as the Cirrus Trojan record high quality, uncompressed audio which when played back allows easy identification of noise sources and even whether it is the alleged perpetrator or indeed the complainant that is the real problem! Continue reading »