Soundproofing Mods

[Constantine]

Any audio engineers in the house?

I'm going into this little project where I'm trying to soundproof my newly water cooled rig. PCCG sells some sound absorbing foam and some sound deadening material.
Questions are, 

How do I use the two materials? Do I layer a panel with sound deadening then layer the sound absorbing foam on top of that? 
How much material do I use with the sound deadening? Do I cover the whole panel? I know I can get away with not covering the whole panel with foam.

Here are the links to the products.
http://www.pccasegear.com/index.php?mai ... s_id=22394
http://www.pccasegear.com/index.php?mai ... s_id=22395

Cheers 

[wng_kingsley7]

Not an audio engineer but since it says what it does on the box, "adhesive back-side for easy installation" Thickness is also another factor that helps to isolate sound and vibrations from being passed through solid objects.

For the first product I'd say that one is best for flat side panels, the other link below you've given is better for more different shaped products if you're capable of building a mould using injection moulding or something else.

How much you need is up to you but the dimensions are for the first product is 660mm (66cm horizontally) by 330mm (33cm vertically), the second is 900mm (90cm horizontally) by 330mm (33cm vertically) The second seems a bit more better if you're covering a distance however the first product is thicker by 3.5mm so the thicker the better .

Hope this helps you solve your issue

[vong]

I've done some car audio so I'll pitch in.

 

The sound absorbing foam will be much better for silencing your pc as the sound deadening will just stop rattles and resonance. For instance, if you tap the side of your case without the sound deadening it'll sound hollow and with it install it'll sound solid. But if you want both then stick the sound deadener on first then the sound absorbing foam on it.

 

I don't really see the point of using either of those materials though because there's a lot of holes for airflow and sound to go through...

 

Honestly if you want a quiet pc you're better off watercooling and using quieter drives like WD greens.

[TymmVonD]

I've done some car audio so I'll pitch in.

 

The sound absorbing foam will be much better for silencing your pc as the sound deadening will just stop rattles and resonance. For instance, if you tap the side of your case without the sound deadening it'll sound hollow and with it install it'll sound solid. But if you want both then stick the sound deadener on first then the sound absorbing foam on it.

 

I don't really see the point of using either of those materials though because there's a lot of holes for airflow and sound to go through...

 

Honestly if you want a quiet pc you're better off watercooling and using quieter drives like WD greens.

@Constantine

Dynamat is effective in cars even if you don't cover an entire panel. You can put a 6"x6" square right in the middle of your case's side panel and it'll deaden the vibrations. Then, use then use sound insulating foam around that to soundproof. Seeing as the Pc doesn't create loads of sound pressure, you'd be fine using either material on the entire side panel.

[vong]

@Constantine

Dynamat is effective in cars even if you don't cover an entire panel. You can put a 6"x6" square right in the middle of your case's side panel and it'll deaden the vibrations. Then, use then use sound insulating foam around that to soundproof. Seeing as the Pc doesn't create loads of sound pressure, you'd be fine using either material on the entire side panel.

 

Yes that's true. You still don't need to use butyl Based Sound Deadening Material for sound proofing as foam does a much better job at absorbing sound. Even if you use both materials sound will still leak out of the grills.