Matlab speaker modelling

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   Anyone tried this, or got advice/suggestions about ways to model speakers in Matlab? I have some thoughts of my own, but going to get proficient in the software before I try anything.....

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tommysb Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 24 April 2006 Location: Finland Status: Offline Points: 1036	Post Options Post Reply Quote tommysb Report Post Thanks(0) Quote Reply Topic: Matlab speaker modelling Posted: 07 August 2008 at 8:24pm
	Anyone tried this, or got advice/suggestions about ways to model speakers in Matlab? I have some thoughts of my own, but going to get proficient in the software before I try anything.....

odc04r Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5482	Post Options Post Reply Quote odc04r Report Post Thanks(0) Quote Reply Posted: 08 August 2008 at 12:50am
	Well I'm fairly handy with Matlab, so feel free to pm me if you get a bit stuck. I did consider working out horn folds in a given 2D cab size given a bunch of volumes using numerical solvers but never got the time or had the inclination to seriously start.

davey t Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 11 March 2004 Location: Bristol UK Status: Offline Points: 1428	Post Options Post Reply Quote davey t Report Post Thanks(0) Quote Reply Posted: 08 August 2008 at 9:08am
	why not st use akabak?
	Minirig portable soundsystem movement

Deadbeat Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167	Post Options Post Reply Quote Deadbeat Report Post Thanks(0) Quote Reply Posted: 08 August 2008 at 11:27am
	I'd only use MATLAB or another mathematic software for something like room placement of subwoofers (I think some use that instead of software like CARA, etc) etc (or calculating flares when you can't do it on paper, it's useful for OS, jmmic, tractrix flares for comps that you can't draw out on paper). As davey said, Akabak would be more suitable (I'm slowly learning it...slowly...).
	Away on extended leave.

tommysb Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 24 April 2006 Location: Finland Status: Offline Points: 1036	Post Options Post Reply Quote tommysb Report Post Thanks(0) Quote Reply Posted: 08 August 2008 at 7:41pm
	The overall idea, was that it would be possible to write a program that sort of tuned a box to a particular driver, but would also be able to do the opposite. It was intended as an exercise to help my understanding of acoustics, could be a bit of fun, and is much more configurable. Arriving at an optimum bass horn using genetic algorithms? Gotta be worth a try i think......

SteveAATW Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 04 September 2007 Status: Offline Points: 1173	Post Options Post Reply Quote SteveAATW Report Post Thanks(0) Quote Reply Posted: 09 August 2008 at 2:29am
	I use Matlab every day... I hate it more with every day that passes....

odc04r Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5482	Post Options Post Reply Quote odc04r Report Post Thanks(0) Quote Reply Posted: 09 August 2008 at 2:55am
	Eventually you will get to love it, and by that point it will be time to start using C.

SteveAATW Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 04 September 2007 Status: Offline Points: 1173	Post Options Post Reply Quote SteveAATW Report Post Thanks(0) Quote Reply Posted: 09 August 2008 at 3:08am
	I think my problem is that I learned how to program long before I had to use Matlab.... I'd take assembly over the pain of solving algebraic loop errors in Simulink, and models that take 2 days to simulate 1200s of real time

tommysb Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 24 April 2006 Location: Finland Status: Offline Points: 1036	Post Options Post Reply Quote tommysb Report Post Thanks(0) Quote Reply Posted: 09 August 2008 at 2:08pm
	My other option is to write something in C, which I'm actually fairly comfortable with, I just presumed it would be quicker to start prototyping equations etc in Matlab! (and you could have a nice GUI more easily).

odc04r Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5482	Post Options Post Reply Quote odc04r Report Post Thanks(0) Quote Reply Posted: 10 August 2008 at 5:13am
	Matlab is sheer brilliance for rapid prototyping, if you know what you want it to do and especially if you want pretty graphs afterwards. Matlab is all about getting data into an enviroment where you can work with it as quick as possible with a mimimum of fuss, proper analysis then is a lot more straightforward. If you can be bothered to do that donkey work yourself then C will be a sh*tload faster and then some.

tommysb Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 24 April 2006 Location: Finland Status: Offline Points: 1036	Post Options Post Reply Quote tommysb Report Post Thanks(0) Quote Reply Posted: 10 August 2008 at 4:01pm
	yeah, I just don't have any experience in GUIs in C. Plus, it depends how well i write the algorithms... To be honest, I don't think it will be that intensive that the speed will make a difference. Although I may be proved wrong...

odc04r Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5482	Post Options Post Reply Quote odc04r Report Post Thanks(0) Quote Reply Posted: 11 August 2008 at 1:14am
	You don't need to worry too much about gui develpment with C unless you want to. Just compile to a console exe and run at the command prompt, then you can print out log files of data and analyse them with excel/matlab/whatever for pretty results perhaps. I have written a lot of stuff this way. Edited by odc04r - 11 August 2008 at 1:14am