Author Topic: In Search of Sound Dampening Mat Material  (Read 664 times)

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Offline ddrfraser1

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In Search of Sound Dampening Mat Material
« on: Sat, 20 March 2021, 14:36:31 »
Hola folks. I'm on a mission to make the worlds quietest mechanical keyboard for my brother in law who is an audio engineer. I'd like to replicate the dampening mat used for the HHKB.

http://www.smartimports.net/hhkb-hg-embossed-vibration-absorption-mat/

I got this adhesive neoprene one off amazon but I heard silicon is better suited.

https://www.amazon.com/gp/product/B07FMWGJ6J/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

I'd like it to be something with an adhesive back. I'd rather not glue it. Also, has to fit under a full size. 12x12 won't do it.

Recommendations?

Offline fohat.digs

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Re: In Search of Sound Dampening Mat Material
« Reply #1 on: Sat, 20 March 2021, 14:40:47 »
I always heard that sorbothane was the gold standard.

https://en.wikipedia.org/wiki/Sorbothane
What this shows is that the Republican Party knows, deep down somewhere, that even before Trump they had less than a policy agenda. All they’ve had for the past decade or so is strategy and tactics to suppress the vote, either through extreme gerrymandering or State-level laws. More often than not, as we’re seeing, through both. Without a stated party platform they are left with nothing but the insanity of The Power Grab and The Big Lie. The Party as a whole has, for some twisted logical reason, decided that America no longer needs Democracy. That in the bent and tortured reality Republicans have created for themselves America was never a Democracy, the Founders never intended for the country’s politics or social order to change, that the country’s democratic features would always only extend to wealthy White Christian property owners. They’ve also, collectively, decided that threatening major, multi-billion dollar corporations that employ tens, if not hundreds, of thousands of people worldwide will somehow, for some reason, cower in the corner when State politicians decide to take a few million in subsidies off the table. When faced with hundreds of millions, or even billions, in lost business because The People are voting with their wallet, I know where I’d position my company, and it’s not at the dinner table with Mitch McConnell and his wife.
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Offline ddrfraser1

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Re: In Search of Sound Dampening Mat Material
« Reply #2 on: Sat, 20 March 2021, 18:48:05 »
Nice. Looks promising. Having a hard time finding any that fits the bill tho :/

Offline ju6ju8Oo

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Re: In Search of Sound Dampening Mat Material
« Reply #3 on: Sat, 20 March 2021, 21:54:40 »
Silicone adhesive tape is expensive though

Offline Leslieann

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Re: In Search of Sound Dampening Mat Material
« Reply #4 on: Sat, 20 March 2021, 22:08:22 »
Sorbothane works but it's typically not used on such large quantity, it's usually for small feet and such, which isn't surprising considering the cost.

If I was using a keyboard in a studio environment and concerned with it being heard I'd start with a something other than a (not quite) mechanical keyboard.
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Offline ddrfraser1

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Re: In Search of Sound Dampening Mat Material
« Reply #5 on: Sun, 21 March 2021, 03:38:03 »
Well I may do some testing with my neoprene mat for now and see if that is satisfactory. Worst case I can always stick to 12 x 12‘s together and cut them to size if I do end up going with silicone.

Online Findecanor

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Re: In Search of Sound Dampening Mat Material
« Reply #6 on: Sun, 21 March 2021, 04:13:28 »
You could also look at kits for lining the interior of PC cases with sound-damping foam. That foam is often self-adhesive, but not intended to be pressed though - only to block sound waves in air from reverberating in a metal chassis.
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Offline ddrfraser1

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Re: In Search of Sound Dampening Mat Material
« Reply #7 on: Wed, 31 March 2021, 10:13:57 »
Here's the build log and the direction I ended up going in.

https://www.keebtalk.com/t/worlds-quietest-mechanical-keyboard/13656?u=ddrfraser1