Woofer response simulation help!?!?

[head_unit]

Hi All, I have two simulation questions:

1) Simulation in Excel:
I want to make some response graphs, and I'm wondering if there are current programs that can simulate woofer repsonse in Excel (2007)?

I know there are a lot of other programs, but I do not need detailed simulations. Theoretical filter theory simulation is good enough for what I want to illustrate. It would just be really convenient to generate the stuff in Excel, to paste in with some other things.

I saw there is a program Unibox, but that appears to be for an ancient version of Excel, so I'm reluctant to spend time downloading and monkeying with it unless someone can tell me it still runs.


2) Simulation of step and tone burst response:
What programs can simulate these? I know you can take output from LEAP and port into LMS to do a reverse calculation and get step response, but it's a little time consuming. And the step response is not really so intuitive. I'd REALLY like to be able to simulate tone bursts at different frequencies, to see how different boxes affect bursts at say 20 Hz, 40 Hz, 80 Hz and so on. I think that would be much more intuitive for laypeople to look at...

[wintermute]

Unibox is very good, I only have Excell 2003 so can't answer your question, other than to say that it is highly unlikely that it won't work on a newer version of excell. Microsoft always make stuff backward compatible (sometimes in the extreme). About the only problem you might have is that you will have to loosen up the security on macros (in excell 2003 I have to set it to medium security level, as they are not digitally signed).

I haven't tried it yet but this one http://audio.claub.net/software/jbabgy/WBCD.html from Jeff Bagby may be what you are after (I've used two of his other excell spreadsheets and they are very good).

Tony.

[Ron E]

Originally Posted by head_unit

Hi All, I have two simulation questions:

1) Simulation in Excel:

There's quite a few excel sims out there, most are locked. do a search for ported.xls for something you can muck around with.

Originally Posted by head_unit

2) Simulation of step and tone burst response:
What programs can simulate these? I know you can take output from LEAP and port into LMS to do a reverse calculation and get step response, but it's a little time consuming. And the step response is not really so intuitive. I'd REALLY like to be able to simulate tone bursts at different frequencies, to see how different boxes affect bursts at say 20 Hz, 40 Hz, 80 Hz and so on. I think that would be much more intuitive for laypeople to look at...

Unibox does step, but not toneburst
For toneburst and step you can use Octave or Matlab.