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<blockquote data-quote="bengineer" data-source="post: 2872778" data-attributes="member: 36951"><p>"The other key problem with the laboratory measurements, as commonly utilized, is that averaged (mean) values for a group of 10 subjects are used to predict the performance for an individual wearer in an occupational setting. Even if the laboratory data were representative of the actual group using the device, the individual variability is large enough that attempts at predicting one person's performance from group data can easily err by up to 20 dB.2"</p><p>From: <a href="https://hearingreview.com/hearing-products/accessories/components/introducing-f-mire-testing-background-and-concepts" target="_blank">https://hearingreview.com/hearing-products/accessories/components/introducing-f-mire-testing-background-and-concepts</a></p><p></p><p>Point is, NRR 26 plugs can offer in-ear reduction of 6dB. Not nearly enough to protect against hearing damage. Individual testing is necessary. Or cut the noise to acceptable levels at the source, if increasing proximity isn't an answer. For shooters, sound suppressors are the best method. Sometimes not affordable or not legal, but turning the volume down is the only proven way to prevent hearing damage. </p><p></p><p>Many other scientific articles have been published on the matter. Seek for yourself as desired. </p><p></p><p>I suffer from tinnitus because of long term noise exposure and insufficient protection by means of EAR yellow cylindrical plugs and later NRR26 orange plugs which sound good but measure 6dB due to bone-transmission of loud impulse noises. Guess where those came from. I wouldnt wish the ringing on anyone and only offer this blurb to protect anyone savvy enough to listen and research for yourself.</p><p></p><p>Cut dB at the source or get away. Or suffer from the ringing fairy.</p></blockquote><p></p>
[QUOTE="bengineer, post: 2872778, member: 36951"] “The other key problem with the laboratory measurements, as commonly utilized, is that averaged (mean) values for a group of 10 subjects are used to predict the performance for an individual wearer in an occupational setting. Even if the laboratory data were representative of the actual group using the device, the individual variability is large enough that attempts at predicting one person's performance from group data can easily err by up to 20 dB.2” From: [URL]https://hearingreview.com/hearing-products/accessories/components/introducing-f-mire-testing-background-and-concepts[/URL] Point is, NRR 26 plugs can offer in-ear reduction of 6dB. Not nearly enough to protect against hearing damage. Individual testing is necessary. Or cut the noise to acceptable levels at the source, if increasing proximity isn't an answer. For shooters, sound suppressors are the best method. Sometimes not affordable or not legal, but turning the volume down is the only proven way to prevent hearing damage. Many other scientific articles have been published on the matter. Seek for yourself as desired. I suffer from tinnitus because of long term noise exposure and insufficient protection by means of EAR yellow cylindrical plugs and later NRR26 orange plugs which sound good but measure 6dB due to bone-transmission of loud impulse noises. Guess where those came from. I wouldnt wish the ringing on anyone and only offer this blurb to protect anyone savvy enough to listen and research for yourself. Cut dB at the source or get away. Or suffer from the ringing fairy. [/QUOTE]
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