Computer simulations of acoustics

How to use REW, What is a Bass Trap, a diffuser, the speed of sound, etc.

Moderators: Aaronw, sharward

ozymandias
Posts: 7
Joined: Tue Aug 08, 2006 12:59 am

Computer simulations of acoustics

Post by ozymandias »

Hi all!

My first post here - It's been a pleasure lurking up until now :).
I am trying to gain better understanding of acoustics by writing a computer program to simulate the wave equation - so far in just one dimension using a simple Finite Differences scheme. I'd appreciate some help with a few points I'm stuck with.
1. Is it possible to model a "speaker" with the 1D wave equation? What sort of source does it correspond to?
2. I understand p=0 (zero pressure) at the boundaries equal to completely reflective walls, but how do I model absorption? What sort of boundary conditions do I need?
If you know of a good paper on the subject I'd also appreciate it a lot.
Thanks for the help! :)
knightfly
Senior Member
Posts: 6976
Joined: Sun Mar 16, 2003 11:11 am
Location: West Coast, USA

Post by knightfly »

Oz, welcome; I hate to send anyone somewhere else, but you'll find a lot more people willing/able to help with this here

http://forum.studiotips.com/

I'm just "spread too thin" to have time to get into this sort of thing ATM, sorry... Steve
Soooo, when a Musician dies, do they hear the white noise at the end of the tunnel??!? Hmmmm...
ozymandias
Posts: 7
Joined: Tue Aug 08, 2006 12:59 am

Post by ozymandias »

Thanks for the link, Steve - just got another forum to lurk around ;).
I've got to say you're running a great forum here, I learn a lot from just reading posts. Keep up the good work!
knightfly
Senior Member
Posts: 6976
Joined: Sun Mar 16, 2003 11:11 am
Location: West Coast, USA

Post by knightfly »

Thanks; just noticed you've apparently missed the "location" request found here

http://www.johnlsayers.com/phpBB2/viewtopic.php?t=3231

there will likely be more questions I can (or have already) answered, and it's much easier to recommend practical solutions if we know where in the world you're located; check out that link for more. Thanks again... Steve
Soooo, when a Musician dies, do they hear the white noise at the end of the tunnel??!? Hmmmm...
ozymandias
Posts: 7
Joined: Tue Aug 08, 2006 12:59 am

Post by ozymandias »

Hey Steve & all,

I live in Israel. However the wave equation is the same worldwide :wink: .
sharward
Moderator
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Joined: Mon Jan 03, 2005 4:08 pm
Location: Sacramento, Northern California, USA
Contact:

Post by sharward »

...but product availability isn't (unfortunately)... :roll:
"Converting a garage into living space requires a city permit . . . homeowners insurance won't cover a structure that's been changed without a building permit . . ." --Sacramento Bee, May 27, 2006
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