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Sound level meters

Hi,

I've noticed that a lot of sound level meters on the market work within a frequency range of 100 - 8000 hz.

What's the principle behind this? Even some of the more expensive ones only seem to offer this narrow range.

Comments

bouldersound Sun, 10/10/2010 - 11:41

Human hearing is not linear at varying volumes. At lower levels it's less sensitive to the high and low end of the spectrum, so most meters have an "A weighted" setting that reflects that response curve. There's another setting on most, "C weighted", which has response to higher and lower frequencies and reflects how we hear at higher volumes. What you're using the meter for determines what weighting you use.

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