Need help understanding how our ears percieve stereo

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Does the munson curve also apply exactly the same to stereo sounds when it comes to an even balance related to the human ear volume wise? If not, what's the difference?

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Brandon203113 wrote: Tue Apr 09, 2019 11:38 amNeed help understanding how our ears percieve stereo
It boils down to timing differences between left & right. We cannot really sense direction on very low & very high frequencies, and it's really difficult on sounds without transients.
Brandon203113 wrote: Tue Apr 09, 2019 11:38 am Does the munson curve also apply exactly the same to stereo sounds when it comes to an even balance related to the human ear volume wise? If not, what's the difference?
Yes, people that are deaf in one ear have the same Fletcher-Munson curve. It's measured for each ear in isolation.
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Okay that makes a lot of sense, i feel dumb for asking now, after posting i'm realizing some of these stereo plugins i have arent affecting the mono so it's basically adding volume to stuff, i was wondering why it was getting way louder...

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dirtysnow wrote: Tue Apr 09, 2019 11:40 pm Like this: https://en.wikipedia.org/wiki/Head-rela ... r_function
ty dirty snow, didnt know this existed

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You need to keep in mind something you rarely if ever see mentioned about audio perception: level perception is non-linear due to the compression that takes place even before encoding and transmission on the cochlear (auditory) nerve. We'd probably need to look into detailed studies that describe the function of the nerve fibers connected to the hairs inside the spiral organ to understand exactly how the compression is effected and whether it introduces (and how if not) non-linear artifacts such as side-bands or harmonics.

https://en.wikipedia.org/wiki/Cochlear_nerve
https://en.wikipedia.org/wiki/Organ_of_Corti
https://en.wikipedia.org/wiki/Stereocilia

In other words while you can definitely hear an isolated tone through a wide range of amplitudes this is not the case with multiple tones or noise masks. With noise masking, some of the rules about data entropy apply where each 6.02 dB of amplitude above the noise floor provides 1 bit of data entropy.

tl;dr: The real range of relative amplitude sensitivity is closer to 40 dB (1/100th), but it's frequency dependent and a bit complicated. This doesn't have a whole lot to do with stereo perception which seems to be timing-based. Studies that attempt to break down the systems involved reveal a lot of complexity, so there is plenty to learn for those so inclined to research.
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