Hornresp

[tb46]

Thanks Bjoern.

Regards,

[epa]

Originally Posted by Kolbrek

If you want to keep the driver, you should use System Design/With Driver. System Design From Specification also calculates driver parameters, but I have never seen a case where only Mmd changes. Usually other driver parameters change as well.

Regards,

Bjørn

what are the odds of that
if you could only change the mmd,you have the perfect driver

[tb46]

Hi,

That's why I couldn't quite believe this.

Regards,

[David McBean]

Originally Posted by tb46

That's why I couldn't quite believe this.

Hi Oliver,

It seems that you must have picked an almost optimal driver to start with :-). The chances of doing this would be quite remote, I expect - a bit like getting a hole in one in golf...

Kind regards,

David

[NEO Dan]

Originally Posted by tb46

Hi,

That's why I couldn't quite believe this.

Regards,

Are you talking about this driver?
http://www.parts-express.com/pdf/264-332.pdf

I think you've entered the specs incorrectly, I get this...

[tb46]

Hi NEO Dan,

That solves the puzzle, you are 100% correct. Thank you so much.

Regards,

[AllenB]

David, I'd like to request that the wavefront simulator show its output over a wider window (graphical window), preferrably one that I could set myself and then retain as standard between a set of comparisons so I could see the wave travelling further outward. (Even a hex location would be helpful if possible).

I'd like to ask while I'm here your usage of the term isophase in the help notes regarding the wavefront simulator. Is this indicating a limitation or does it simply mean the source is assumed to be free of non-linear effects?

[David McBean]

Originally Posted by AllenB

David, I'd like to request that the wavefront simulator show its output over a wider window (graphical window), preferrably one that I could set myself and then retain as standard between a set of comparisons so I could see the wave travelling further outward. (Even a hex location would be helpful if possible).

I'd like to ask while I'm here your usage of the term isophase in the help notes regarding the wavefront simulator. Is this indicating a limitation or does it simply mean the source is assumed to be free of non-linear effects?

Hi AllenB,

The purpose of the Hornresp Wavefront Simulator is simply to show how a perfect isophase wavefront will propagate down a given horn - it is not really intended to be used as a design tool. In practice, wavefronts will not necessarily be purely isophase, because of the different modes of vibration generated within the horn.

There is probably little to be gained by showing the isophase wavefronts extending much beyond the mouth of the horn, as the actual wavefronts generated by the horn will be somewhat different.

A far more sophisticated finite element analysis tool than the Hornresp Wavefront Simulator would be required to accurately show wavefront pressure and phase contours.

Kind regards,

David

[AllenB]

Thank you for clearing that up. So, within the horn formula capabilities and statistical limitations in the treble...

I find the spectrogram simpler than the wavefront simulator for finding the mouth termination backwave. Would there be an infinite baffle option outside of the wavefront simulator?

[Kolbrek]

Originally Posted by AllenB

Would there be an infinite baffle option outside of the wavefront simulator?

You can draw your own walls with the mouse in the wavefront simulator. I think the baffle will behave as if it was infinite if you extend the wall to the edge of the window.

Regards,
Bjørn