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Headphone Heights Welcome to Headphone Heights, the place for all your ear bud discussion |
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In Reply to: Why do headphones have a jagged top-end roll off posted by Frihed89 on March 4, 2014 at 00:02:10:
My introduction to this subject was Marko Hiipakka's 2008 master's thesis linked below. I'm not familiar with the scientific literature in this field, so there may be other better starting points, but I think this nicely written -- and is readily available on the internet.
He looks what affects the transmission of sound from the outer ear to the ear drum, how to measure it, what individual variation is like, and then how to model various aspects. Also he touches on localization, angle of incidence, and spatial cues which are likely all related to the experience of high fidelity "stereo."
Of course, this still leaves aside the very interesting topic of how the cochlea responds to the vibration of the ear drum, how nerve impulses are generated, and how those impulses are manipulated and interpreted by the brain. But you'll see, just the first part of the journey to the ear drum is interesting in it's own right -- and, I think, touches on your original question.
In terms of your question, I think you might be interested in starting around p. 13 where the author introduces the head-related transfer function and says, "It describes how a given sound wave input (parameterized as frequency and source location) is filtered by the diffraction and reflection properties of the head, pinna and torso, before the sound reaches the eardrum."
I found it enjoyable reading.
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Follow Ups
- A nice reference - flatmap 10:58:42 03/07/14 (1)
- Interesting because - Frihed89 16:29:49 03/07/14 (0)
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