What's that program that simulates speaker lobing?

[454Casull]

I promise I'll delete this thread when I find out.

 

[pinkmouse]

I think Renkus Heinz do one.

 

[454Casull]

Any freeware? I recall seeing one being used on this forum.

 

[kelticwizard]

Do you mean the VPR, Vertical Polar Response, at the FRD consortium?

http://www.pvconsultants.com/audio/frdgroup.htm


Why do you want to delete the thread when you find out?

 

[tinkerbell]

very good link, thanks wizard

dont delete this thread!

 

[454Casull]

The ARPE is difficult to use...

 

[kelticwizard]

Are you looking to simulate the respnse for an array of identical drivers or for drivers of different diameters?

 

[454Casull]

Well, I'd like to simulate the response for 2 identical drivers aligned vertically (i.e. the woofers in a MWW box).

 

[AndrewJ]

Try using this program. It is for baffle simulation, but will model multiple drivers also.

http://www.tolvan.com/edge/

Andrew

 

[kelticwizard]

Well, I'd like to simulate the response for 2 identical drivers aligned vertically (i.e. the woofers in a MWW box).

Then I would imagine the VPR program is what you would use instead of the ARPE program.

By the way, I tried the VPR program and it looks good, but I don't know how to read waterfall plots. So it was of limited usefulness for me. But perhaps not for you.

I think there is a thread around here somewhere about reading waterfall plots. Hmmmm.

PS: That Edge program looks very useful,AndrewJ. Thanks.

 

[454Casull]

Then I would imagine the VPR program is what you would use instead of the ARPE program.

By the way, I tried the VPR program and it looks good, but I don't know how to read waterfall plots. So it was of limited usefulness for me. But perhaps not for you.

I think there is a thread around here somewhere about reading waterfall plots. Hmmmm.

PS: That Edge program looks very useful,AndrewJ. Thanks.

The problem with the VPR spreadsheet is that the response changes radically as you increase the number of samples per octave - yet, intuitively, it seems that by increasing the number of samples, the response becomes more accurate.