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Computer simulations of acoustics

Posted: Tue Aug 08, 2006 1:03 am
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! :)

Posted: Sat Aug 12, 2006 2:25 pm
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

Posted: Sat Aug 12, 2006 5:25 pm
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!

Posted: Sun Aug 13, 2006 1:34 am
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

Posted: Sun Aug 13, 2006 4:47 am
by ozymandias
Hey Steve & all,

I live in Israel. However the wave equation is the same worldwide :wink: .

Posted: Sun Aug 13, 2006 4:55 am
by sharward
...but product availability isn't (unfortunately)... :roll: