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Posted By Sally Pritlove
Does anyone have a definitive answer as to the sound pressure level that a headset earpiece should be regulated at for call center staff and the like ? I have been informed that they are set to 108dB max in accordance with the ITU P360 but having read this document cannot find this level. Does anyone have a minimum and maximum level that they should be adjusted to and a reference that advocates this?
Thanks
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Posted By Paul Leadbetter
Sally
10 dB(A) over ambient noise should be enough unless the operator is hard of hearing.
Paul
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Posted By Alison WR
I think you'll find that the limiter setting is the point at which noise is clipped, so nothing above 108 is allowed to pass. This does not mean that the noise being listened to is as loud as 108. As the listening volume is increased, the moments exceeding 108 increase, so the clipping becomes more intrusive, so people turn it back down again.
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Posted By Adrian Watson
Alison is right that the 108 dB limiter is a signal limiter to prevent accoustic shock.
The headset should be set at between 5 to 10 dB above backround for to give a clear signal to background ratio; the background noise level should be around a NR of 35-45 .
Regards Adrian Watson
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Posted By Jem
All EC marked headsets will be limited 118db, however this does not protect against acoustic shock or acoustic startle. Acoustic startle is an emerging issue and is not dependant on db levels.
Call centres will need to address the above issues as well as addressing the latest Noise at Work' amendments by introducing technology that measures and controls a call handlers exposure to noise throughout their shift (8 hours), which now must not exceed 85db.
Take a look at the Acoustic Safety Program website for further information.
http://www.acousticshock.org/
Jem
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