Ronion
1000+ Head-Fier
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- May 17, 2013
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No Rayleigh scattering is going to even come close to mattering here--not that it even matters because that's not diffusion. Not that diffusion would even help in this circumstance and especially in the region of 10-20kHz and doubly so in an earbud shell. You won't be able to get around this facts no matter how hard you try because you are wrong. You too can keep digging of you like.Oh man, I really admire your persistence, but I don't get where does your passive aggression comes from, so I would not get into any personal dispute.
Speaking of things based strictly on personal beliefs and no facts to back it up - I don't know where did you get this information from but I don't have any interest (financial margin, cut etc) in the sales of Gen 3. There was an interest in me participating in the project though - I gained a lot of knowledge based on the experience in buds making, modding IEMs, headphones and reviewing of dozens of them from one of the most knowledgeable guy in the hobby I met. Ok, I also received a gift free of charge in form of a one piece of the Alter Rider 3 for the cooperation, but forgive me that.
In regards to scattering and your analogy.
I am not an acoustic engineer, but from your previous post I understand that neither are you. I assume then that you and I base our knowledge on the practice and the easily available sources, which very often simplify the reality for sake of understanding.
From higher up in the field in acoustics I found some interesting theory of Rayleigh scattering on rough surfaces that seems applicable to the phenomenon that happens scenario inside of the shell. You may be interested in reading about that. I won't claim I understand completely this theory because I dont., But I find it somewhat interesting in regards to what was observed.
Please find attached screen below (Chapter 9 Scattering of Sound at Rough Surfaces, Fundamentals of Ocean Acoustics, Brekhovskikh et al).
The Rayleigh parameter mentioned in this screen for the design of shell is calculated to be estimately between 0.1 - 0.74 depending on the grazing angle and for the frequencies in range 10kHz to 20kHz. Is it a value <<1 making it discardable? It is also obviously not >>1. So we are somewhere in between. Interpret it as you wish.
Have a nice weekend
Sorry, I thought you were making these shells and selling them to the person I can't mention and thus the Red Herring you're offering?
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