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Natural Science Forum / Physics / Acoustics / August 2008Low frequency noise - hum sufferers
If you know any Hum Sufferers out there, they may be interested to look at www.copingwithnoise.org This introduces our new project on helping people to cope with noise problems which cannot be solved technically. For example, the Hum which plagues some people. Or noises which meet their criteria, but still cause upset. The work is supported by UK government departments, but we can take a few participants from outside the UK. So, if you know anybody who might be helped, please let them know about the project. Many thanks Geoff __________________________________ Dr Geoff Leventhall Consultant in Noise Vibration and Acoustics 150 Craddocks Avenue Ashtead Surrey KT21 1NL Tel/Fax 01372 272 682 I read your Defra report and it made interesting reading. I can remember media reports of nausea being caused at 19Hz(no Db mentioned) but your graph seemed to rule out a spike at that frequency. Also interesting was your adult male chest resonance figure of 50Hz at 107Db .I have experienced something similar.....part of the visceral experience of going to a live concert...common to here the comment "I could feel my chest move !". At my house in a quiet Canberra suburb,double glazing is remarkably effective at reducing most frequencies although a deep "V-8"engine throb will still penetrate. Keith. > If you know any Hum Sufferers out there, they may be interested to look at > [quoted text clipped - 19 lines] > Ashtead Surrey KT21 1NL > Tel/Fax 01372 272 682 |
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