Hello!
Everything started with this work here:
https://www.diyaudio.com/forums/multi-way/328970-klangfilm-spherical-wave-horn-calculator-round-elliptical.html
Now, after a long time of research and programming I would like to introduce my new website:
Sphericalhorns – This is an exclusively private blog about spherical horns without any commercial interest.
The first two theoretical "papers" have been published and the next is in the making for the Kugelwellenhorn. This would be also the time when I will provide my spread sheet calculator to the community.
Have fun!
docali
Everything started with this work here:
https://www.diyaudio.com/forums/multi-way/328970-klangfilm-spherical-wave-horn-calculator-round-elliptical.html
Now, after a long time of research and programming I would like to introduce my new website:
Sphericalhorns – This is an exclusively private blog about spherical horns without any commercial interest.
The first two theoretical "papers" have been published and the next is in the making for the Kugelwellenhorn. This would be also the time when I will provide my spread sheet calculator to the community.
Have fun!
docali
Just dropping in to say I enjoyed the read and the many examples on the other thread. Interesting work, can't wait to see some of these horns come to life.
Hi!
Thanks for your feedback! You are welcome!
Is is quite cumbersome and time consuming to write all these formulas and prepare the pictures for a web page but it is necessary as most things are pure math.
The good thing is that first BEM simulation with help out of this forum here showed very promising results and therefore I hope that some day one of these horns come really to life.
Thanks for your feedback! You are welcome!
Is is quite cumbersome and time consuming to write all these formulas and prepare the pictures for a web page but it is necessary as most things are pure math.
The good thing is that first BEM simulation with help out of this forum here showed very promising results and therefore I hope that some day one of these horns come really to life.
Greets!
Thanks for sharing! Now all I've got to do is make time to read/'absorb' it, though will have to skip over any higher math, so hope it's 'dumbed down' enough to understand at least the basics. 😉
GM
Thanks for sharing! Now all I've got to do is make time to read/'absorb' it, though will have to skip over any higher math, so hope it's 'dumbed down' enough to understand at least the basics. 😉
GM
Thanks for sharing the insight and the math behind the elliptic horn designs. There is a lot there to digest. Looking forward to more posts.
It will be interesting to see one built. At 400Hz fc those will be big horns. 🙂
It will be interesting to see one built. At 400Hz fc those will be big horns. 🙂
Docali has produced a masterpiece.
His understanding of math is at least 10 levels above mine, probably more.
His understanding of math is at least 10 levels above mine, probably more.
Great blog! I will be following. Thanks for sharing the knowledge.
I have a 5 way round horn system, I love them but also I am hearing the same things with you that can be improved upon. When you share the spreadsheets I will try and build one.
I have a 5 way round horn system, I love them but also I am hearing the same things with you that can be improved upon. When you share the spreadsheets I will try and build one.
Wow, you really are serious. It will be awhile before I can say something. Until then, just keep going - you gotta audience here.
ToS
ToS
Looked at your new site very interesting.Glad you describe known horn issues so well.I think that like most enthusiasts on this site I would like to see some examples built using your methodology,So I wish you all the very best.
Don't worry about the math. I have tried to discuss this with an empty VBA sheet but it insisted to get programmed in the right way 😉
There are three early tester out here and I think that the sheet is quite easy to use and has an iterative Flow.
Besides the article some fine tuning is still necessary.
There are three early tester out here and I think that the sheet is quite easy to use and has an iterative Flow.
Besides the article some fine tuning is still necessary.
so, are you stepping into "stereo lab" like horns for diy ?
Are they tractrix ?
Or spherical (more like avante garde) ?
Those 2 seem real close looking............
Any overlay drawing that can show the difference ?
Is "stereo lab" still selling horns ?
Are they tractrix ?
Or spherical (more like avante garde) ?
Those 2 seem real close looking............
Any overlay drawing that can show the difference ?
Is "stereo lab" still selling horns ?
My horns are named as DrBA and have only the base formulas in common with SWH or tractrix but as true expansion tractrix. They will be free for private use. Besides this three completely new profiles will be presented.
And no, die nothing in common with stereo Labs!
And no, die nothing in common with stereo Labs!
Cool. Danke sehr. Your website provides a clear explanation through a nice logical progression of your work.
Hello!
In a few hours the new post about the spherical wave horn (Kugelwellentrichter) will be online. It was written in German because of the reasons described in the post. Using a translator should work well.
So, you will need some time to read all the stuff as I need some more time to prepare the corresponding spread sheet for the community.
Enjoy the post!
As I had no reviewer it would be nice if you could report any identified errors here. Thanks!
In a few hours the new post about the spherical wave horn (Kugelwellentrichter) will be online. It was written in German because of the reasons described in the post. Using a translator should work well.
So, you will need some time to read all the stuff as I need some more time to prepare the corresponding spread sheet for the community.
Enjoy the post!
As I had no reviewer it would be nice if you could report any identified errors here. Thanks!
Dear all!
The first official version of my spread sheet calculator is available here:
Download – Sphericalhorns
I assume that Microsoft® Excel is required as it's VBA code is something different to open source office products.
The main purpose of this calculator is to export a point cloud file. You will need additional tools/programs to generate a printable file!
The first official version of my spread sheet calculator is available here:
Download – Sphericalhorns
I assume that Microsoft® Excel is required as it's VBA code is something different to open source office products.
The main purpose of this calculator is to export a point cloud file. You will need additional tools/programs to generate a printable file!
Can it be saved in an older format… and i am pretty sure if it uses VBA it will not run in Excel on a Mac :^(
dave
Yes, this might be the trade-off. Using Excel VBA was a distinct decision and without it I would have never reached this level. I had to buy a license for myself. There are currently no plans to publish an older version of Excel. But so far as I know there exists an offer for a 30 days trial period for office products. And very good that it will not run on a MAC 😀