:: GussetBLOG ::

:: Saturday, February 03, 2007 ::

Noise

My job (doing noise surveys) made the news yesterday when a fairly pointless survey ranked cities across the UK by traffic noise level. The deciding factor in these rankings will have been choice of road and distance from the road at time of measurement. That's assuming the weather was suitable of course. The 2 x 20min L_Aeq (equivalent continuous level, reached by logarithmic averaging) will have made some progress towards standardisation but not enough to call the study scientific to my mind. It's always a tough call to decide how much data you need (how long and how many points) before you waste time and money gathering too much or take too great a risk with too little. Annoyingly I can't find the actual paper to check their methodology.

At least it brings some media attention to what we do and makes people aware of the importance of surveying.

While I'm on the subject of work, my old uni tutor Trevor Cox has been getting some publicity again recently, this time with a lecture he’s put together to make acoustics interesting and accessible to kids. Reading this [scan from the Acoustic Bulletin, 450KB JPG] makes me want to see it! The horrible sounds referred to are the ones that were surveyed in 2005, linked here.

:: Dan 3.2.07 [Arc] [0 comments] [links to this post]    ::
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