I'm just being patient and waiting for you to add that 5th segment to the TH function..
Pigs will be flying, well before that happens
.
I have no idea what your phone will allow after the photo is taken, I was referring to when you are taking photos. The key is to pay attention and learn to control the camera orientation, you should have a little orientation indicator as pictured below.
The site switched the orientation because I attached 2 photos in the same post. The 1st pic was landscape and the 2nd pic was portrait.
Just a quick status on the Semi-Inductance calculator spreadsheet...
I've just about got all of the comments/corrections/suggestions from the Beta testers rolled in. Will post spreadsheet here soon for Hornresp users to take for a spin.
All that is needed is the free-air impedance data. Currently it can import ASCII impedance files that are comma, space, or TAB delimited as well as ARTA/LIMP binary *.lim format. The *.zma files that Parts Express posts which include both TAB & spaces between columns also work fine. I'll include a step-by-step example for one of the Dayton drivers.
Attachments
Hi David,
Here is the copy of one of the files that generates error.
Thanks,
Florent
Is it possible to simulate a horn line array ala this one in Hornresp?
OB-Horn-hybrid by dutch Bert Doppenberg
(But with closed back chamber)
OB-Horn-hybrid by dutch Bert Doppenberg
(But with closed back chamber)
I have the same bug after installing the same latest version over a previous version from June2018. Hornresp throws up the same error dialogue box on trying to open any old .dat projects and clicking on the "OK" crashes Hornresp.
Its such a wonderful program I dont mind. Ill just make some new projects. If you read this David I just want to say thanks.
Basically a compound horn with a tiny rear chamber will be a close approximation. This is a part lower midrange loading on the front of the driver and an open air baffle on the rear of the driver. You design one driver and horn. And then do a multiple loudspeaker array in the tools section of the power screen after you have run the calculation.
Hi Florent,
Many thanks for the example file, it enabled me to quickly find and fix the problem.
Hopefully you should now be able to open all your .dat files, without any issues.
Kind regards,
David
Hi kazap,
It is not necessary to regenerate your projects.
Download a copy of the latest release and everything should work fine.
Thanks for the thanks
.Kind regards,
David
Hi David,
Thanks a lot for this very quick fix !!!
I can now open all my .dat files
Warm regards,
Florent
Hi David, can an "Open Baffle" option be added to the "Driver Arrangement" list in Hornresp?
If I'm thinking this through correctly (which is certainly not always the case!), the only difference between the "Open Baffle" option and the "Compound Horn" option would be automatic calculation of the "Path" value, based on the values for L12, L23, L34 and L45 and the flare rates of the CH. For a simple H-type or N-type OB, Path could be (L12+L23+L34)*2. The situation does get a bit more complex if the OB profile is not an H-type or N-type, but can probably be calculated using the flare rates and a bit of geometry.
BTW, something I've found with a bit of experimentation in Hornresp is that high-inductance drivers could make pretty decent open baffle subwoofers, even if Qts is low, but that's probably a subject for another thread....
If I'm thinking this through correctly (which is certainly not always the case!), the only difference between the "Open Baffle" option and the "Compound Horn" option would be automatic calculation of the "Path" value, based on the values for L12, L23, L34 and L45 and the flare rates of the CH. For a simple H-type or N-type OB, Path could be (L12+L23+L34)*2. The situation does get a bit more complex if the OB profile is not an H-type or N-type, but can probably be calculated using the flare rates and a bit of geometry.
BTW, something I've found with a bit of experimentation in Hornresp is that high-inductance drivers could make pretty decent open baffle subwoofers, even if Qts is low, but that's probably a subject for another thread....
Hi Brian,
After giving it some thought, I suspect that it is probably safer to leave things as they are, and have the user make the decisions on path length, etc, depending upon their chosen CH / open baffle / dipole design. As you point out, things start to get complicated when more complex profiles are considered, and the selected path length value becomes what is in effect a "judgement call".
Perhaps you could come up with a series of BOXPLAN-style spreadsheets, for different open baffle designs....
Kind regards,
David
After giving it some thought, I suspect that it is probably safer to leave things as they are, and have the user make the decisions on path length, etc, depending upon their chosen CH / open baffle / dipole design. As you point out, things start to get complicated when more complex profiles are considered, and the selected path length value becomes what is in effect a "judgement call".
Perhaps you could come up with a series of BOXPLAN-style spreadsheets, for different open baffle designs...
.Kind regards,
David
