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Memory foam for studio.

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Memory foam for studio.

Postby Elephone » Wed May 29, 2019 3:23 pm

Hi. We're inevitably going to end up with memory foam when we change our mattresses. Pretty expensive stuff to chuck out. Any thought on usefulness for the studio as... sound absorber or to put speakers on?
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Re: Memory foam for studio.

Postby snipedog » Wed May 29, 2019 3:38 pm

AFAIK memory foam is a closed cell structure, so it won't have great absorption at any useful frequencies. I guess it might have some use in speaker decoupling, depending on how heavy your speaker are ?
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Re: Memory foam for studio.

Postby Hugh Robjohns » Wed May 29, 2019 7:28 pm

Make a comfy place to sit while you're waiting for your backups to finish...

But no acoustic advantage whatsoever AFAIK!

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Re: Memory foam for studio.

Postby Elephone » Fri May 31, 2019 10:19 pm

snipedog wrote:AFAIK memory foam is a closed cell structure, so it won't have great absorption at any useful frequencies. I guess it might have some use in speaker decoupling, depending on how heavy your speaker are ?
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It's not all closed cell structure though is it? The slab I have is 'fleshy' but porous and heavy for its size.
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Re: Memory foam for studio.

Postby Hugh Robjohns » Fri May 31, 2019 10:53 pm

I think most memory foam does actually have an open cell structure, but it is very dense with very small cells, and its also pretty heavy which probably means it will tend not to have a flat absorption spectrum, or be particularly efficient as an absorber. I'd expect it to soak up more lower-mid frequencies than high-mid and HF, but overall I'd expect it to perform relatively poorly in comparison to the established products.

Moreover, I don't recall seeing any acoustic lab measurements of it, and nor am I aware of any manufacturers using it in commercial acoustic treatment products... Which must be for a good reason....

At the end of the day, though, you have a large sample to hand, so try it and see... And let us know how well (or otherwise) it works.

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