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Posted: 11/21/2012 3:05:23 PM EST
Dakota Silencer posted this on their FB page. It is a nice simple chart. A lot of people ask "How much does a 'silencer' reduce the noise?"

Link Posted: 11/21/2012 3:34:16 PM EST
Every 3db reduction in sound is a reduction of 50%. For this reason, the difference between 167DB and 140DB is freaking huge, nearly a 95% reduction in sound levels! This doesn't show up well in their chart.

I realise, each bar represents 10 DB, but I wish the grapic would better represent the fact that a 132DB rifle shot is twice as loud as a 126DB rifle shot.



Link Posted: 11/21/2012 3:56:23 PM EST

Originally Posted By cchurchi:
Every 3db reduction in sound is a reduction of 50%. For this reason, the difference between 167DB and 140DB is freaking huge, nearly a 95% reduction in sound levels! This doesn't show up well in their chart.

I realise, each bar represents 10 DB, but I wish the grapic would better represent the fact that a 132DB rifle shot is twice as loud as a 126DB rifle shot.





I knew db point reduction and actual sound reduction was not linear, but I was unsure of the actual curve.
Link Posted: 11/21/2012 4:41:26 PM EST
I did not know that. Thanks for the info!
Link Posted: 11/22/2012 2:15:07 AM EST
Originally Posted By cchurchi:
Every 3db reduction in sound is a reduction of 50%. For this reason, the difference between 167DB and 140DB is freaking huge, nearly a 95% reduction in sound levels! This doesn't show up well in their chart.

I realise, each bar represents 10 DB, but I wish the grapic would better represent the fact that a 132DB rifle shot is twice as loud as a 126DB rifle shot.





Also realize that humans' perception of sound is also not linear.

http://trace.wisc.edu/docs/2004-About-dB/

Perception of Loudness (20dB = 4x)

Interestingly, our perception of loudness is not the same as sound pressure level. Although the actual formulae
is somewhat complex, as a rough rule of thumb, an increase of 10db SPL is perceived to be approximately twice as loud.

Thus a 20 Db gain would seem to be about 4 times as loud.
And a 40 Db gain would seem to be about 16 times as loud.
Link Posted: 11/22/2012 6:28:39 AM EST
[Last Edit: 11/22/2012 6:30:32 AM EST by ikickhippies]
I wish that they had done some better work on their gun pics. I've seen 100's of LTR's, but never one with a wood stock and iron sights.

And is the scope on that 10/22 only being held on with a rear ring?

Attention to detail? Fail.
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