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 Posted by Richard Crowley on 10/05/44 11:38 
"Steve King"  wrote ... 
> I've found that AC air noise is more like pink noise.   
> Where do you center that notch filter?  I'd like to know.   
> I haven't been successful with EQ on blower/air noise. 
 
That has been my experience, also. HVAC/fan noise is  
rarely simple enough for notch filtering to be effective.
 
  
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