[Max F]

I don't know what Headfiers use an spl meter for, but I used mine to integrate my subwoofer with my other speakers. Also used it to EQ my subwoofer with a Behringer Feedback Destroyer.

Anyway, what i need to be able to do is measure the SPL at various frequencies using sine waves. If you do this you would want to use C weighting and use correction values for the lower frequencies <100 hz since the meter is not accurate below 100 hz. The correction increases as you get down low - much like your ears have a hard time hear these frequencies. I don't know what the latest correction factors are though. You'll have to do a search. Now I use a flatter microphone (ECM8000) with my DEQ2496.

 

[riceboy]

I use C with slow setting to measure listening levels, but I would be interested to hear more feedback on this thread

 

[scompton]

Quote:

Originally Posted by Max F /img/forum/go_quote.gif I don't know what Headfiers use an spl meter for, but I used mine to integrate my subwoofer with my other speakers. Also used it to EQ my subwoofer with a Behringer Feedback Destroyer. Anyway, what i need to be able to do is measure the SPL at various frequencies using sine waves. If you do this you would want to use C weighting and use correction values for the lower frequencies <100 hz since the meter is not accurate below 100 hz. The correction increases as you get down low - much like your ears have a hard time hear these frequencies. I don't know what the latest correction factors are though. You'll have to do a search. Now I use a flatter microphone (ECM8000) with my DEQ2496.

I use it to determine what my listening levels are.

Here's a post that shows how I measure an IEM. http://www.head-fi.org/forums/showth...62#post2863062

Here's the post by Skylab that shows how to measure a full sized headphone.
http://www.head-fi.org/forums/showpo...5&postcount=42

I've seen a few posts with home made frequency response graphs that mention the plate method, which is probably Skylab's method, although I've never asked for confirmation.

 

[Max F]

Oh, OK. Thanks for that info. As far as measuring listening levels, I believe that OSHA uses A-weighting.
http://www.osha.gov/pls/oshaweb/owad...ards&p_id=9735

 

[Mher6]

Quote:

Originally Posted by Max F /img/forum/go_quote.gif Oh, OK. Thanks for that info. As far as measuring listening levels, I believe that OSHA uses A-weighting. http://www.osha.gov/pls/oshaweb/owad...ards&p_id=9735

So if we're trying to protect our hearing based on OSHA's charts, we should probably use A weighting.

 

[wolfen68]

Quote:

Originally Posted by Max F /img/forum/go_quote.gif Oh, OK. Thanks for that info. As far as measuring listening levels, I believe that OSHA uses A-weighting. http://www.osha.gov/pls/oshaweb/owad...ards&p_id=9735

um...as mentioned in post #9.