Objective analysis of cabin noise solutions

kenchan · 01-21-2011, 11:56 AM

Quote:

Originally Posted by SeattleLion

In answer to one of the adult posts, I suggest the phone be held next to the right ear of the driver. This would probably yield a reasonable baseline.

That's it.

if you're really going to measure db, get a real SPL meter and a good one.

phone + apps can vary over 15dB right off. 3dB is twice the sound level, not 10dB. then add the phone's pre-programmed audio software that calibrates max performance of that mic in that housing, add multi-array setup phones that actually CANCEL noise outside the polar pattern you got basically a super biased reading of your cabin.

kinda like measuing horse power via your butt.

shadoquad · 01-21-2011, 11:57 AM

Quote:

Originally Posted by kenchan

if you're really going to measure db, get a real SPL meter and a good one.

phone + apps can vary over 15dB right off. 3dB is twice the sound level, not 10dB. then add the phone's pre-programmed audio software that calibrates max performance of that mic in that housing, add multi-array setup phones that actually CANCEL noise outside the polar pattern you got basically a super biased reading of your cabin.

kinda like measuing horse power via your butt.

lol the good ol' butt dyno

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