Peak & Depth - hearing sensitivity - Home Theater Forum and Systems - HomeTheaterShack.com

 
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post #1 of 5 Old 07-03-13, 03:53 AM Thread Starter
Shackster
 
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Peak & Depth - hearing sensitivity

I am wondering about the two dips in the graph below at
110 Hz, 2x0 Hz rapid dip.....

Can we hear if there is a dip that's steep and quick?
I once read somewhere on the forum it mentioned about a 1/6 octave smoothing guideline.
if we apply the 1/6 and see no dip, and the FR is relatively flat. it's ok to the ears
- Is there any article worth reading about it.
- is there a proper scientific name described human hearing sensitivity VS frequency peak n dip
Thank you

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post #2 of 5 Old 07-03-13, 04:56 AM
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Re: Peak & Depth - hearing sensitivity

My guess is that it would be difficult if not impossible to hear that dip. I bet if you moved the mic a few inches the dip would disappear or perhaps be at a different frequency. What is your crossover set to? Kinda high for a crossover to a sub, but if that is it then it could be showing an out of phase condition between the sub and the mains. That could be changed by reversing the phase on the sub.

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post #3 of 5 Old 07-03-13, 04:18 PM
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Re: Peak & Depth - hearing sensitivity

Basically what we hear is 1/6 octave smoothing.

Some people like to use 1/12 octave in the bass region, either would be fine. Some like to go higher like 1/24 octave in the bass region.

Generally because REW has the ability to change this you can set to 1/6 octave and check with higher octaves if there is any questions or check.

Post both the 1/6 and 1/12 octave.

Please explain how many subs etc.
Is this with both speakers running etc.

@ 130hz peak approx how does this look with 1/6 and 1/12 smoothing?
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post #4 of 5 Old 07-06-13, 02:33 AM
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Re: Peak & Depth - hearing sensitivity

Agree that is one sharp notch, probably hard to hear and probably very position sensitive. The ear "phantoms in" a lot of bass info from harmonics, masking some of the loss of a note's fundamental.
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post #5 of 5 Old 07-26-13, 07:38 PM Thread Starter
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Re: Peak & Depth - hearing sensitivity

THIS FR were from two sub running (Audyssey XT32 on, DynamicEQ off)
Subwoofer was crossed at 70Hz.
Thank you all.
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