Transmission Line Modelling Software

[schmeet]

I assume when you have uninstalled it from add/remove programs before re-installing?

I can't think of anything else to try at the moment.

 

[Zero D]

Power Compression Option

I asked before about the possibility of adding this option in, but at the time i don't think it wasn't doable ? Well i've been trying to get my head around AkAbak a bit more & on perusing one of the included PDF manuals, i saw this.

Manual Ak21 Exercises.pdf

Page # 27 Exercises

Analyzing temperature-dependent voice coil resistance

Finally, we will analyze the effect of the voice coil temperature on the curve for the acoustic pressure. Please open the script Ex_22.aks.

Could you take a look at it please, & see if there is anything similar that TLMS could make use of etc, in order to allow this feature. As well as including the temperature coefficients of copper, aluminiuim could also be included

 

[Greebster]

Sounds to me like a firewall type block causing this issue. Have seen similar problems with NOD32, Comodo, etc. Another thought, have you tried another browser? When faced with the oddball issues I normally attempt in Opera, Firefox (and beta), Safari,...

 

[just a guy]

Is the tapped horn feature working properly yet? Has it been worked on?

If yes, great. If no, it should probably be removed.

I just noticed a couple features I requested were added, not sure when that happened but thanks.

 

[Mosquito]

Hi, it seems that he automatic model update feature was disabled (automate plot of response changes whenever you mod the enclosure,dimm, spkr position, stuffing etc.)
It is true, or there is a problem in my system?

 

[Greebster]

Click on the wrench button again.

 

[robotc]

The feature works for me. I have version 3.6.3.5.

Have you selected the spanner icon in the Enclosure window?

 

[Mosquito]

Oh! **it! my bad. Now it works.
Many thanks
J.

 

[Mosquito]

This is a double chamber reflex, modelled after a real speaker that was constructed and tested, and gave substantially what this simulator predicts. Posting just to make sure I'm correctly simulating the box as in the picture






View attachment file tlp.zip

 

[diyAchim]

Hi Mosquito,

thanks for sharing this design.

I wonder - since the response curve looks much better than the MJK MLTL designs - does double chamber bass reflex really have an edge against transmissionline?

I have been searching in vain for reports where people have tried both against each other.

I also optimized your model a bit:


View attachment DCAAVoptimized.zip

Cheers,
A.

 

[abcdmku]

I'm not able to load the webpage to download the software :O is anyone else having this problem?

 

[GM]

FWIW, I just now highlighted this link, then right clicked and clicked on 'go to HTTP... and it downloaded: http://www.leonardaudio.co.uk/software/TransmissionLine.application

GM

 

[Greebster]

I'm out'n about, but dl's fine from my phone.

 

[abcdmku]

Everything is working now!

 

[Illusus]

if i want to simulate two of them in series in a TL

IME driver position is important in a tuned pipe of any sort. How do you model for optimum driver Z with two drivers? Find Z for the theoretical twin driver, then, when moving into the physical realm of the build, mount the drivers straddling Z? What about tapered TL bipoles? Model once for the front driver, then for the rear mounted driver then combine the response graphs?

 

[dyrevennen]

modelling a given shape.

Hi forum,

I just started to use the TL software by Leonard a few days ago, and it is brilliant! Thanks a lot for the effort

So, a question. Is it possible to model a backloaded horn with the shape of the attached figure using the software? I got the drawing from the manufacturer, and would love to compare their design with my own, more conventional TLs, before committing my self to wood

Thanks a lot

 

[peroz]

Hi guys,
I started to play with this software today, and must say I find it pretty simple... Anyway I would like to check with you if I got it right or at least partially right.
As an exercise, I tried to model the popular "needle" enclosure design with Visaton FRS 8. Since there are no folding examples in the tutorial, I played with it anyway, and this is what I ended up with...
The plan I used to make the model:

An externally hosted image should be here but it was not working when we last tested it.

And the plot I get is in the attachment.
Although it goes pretty low, it looks kind of "choppy"...
Is this model okay and representative, or can anyone tell me what I did wrong?

 

[WrineX]

Peroz i did one to i believe somehwere int this topic to confirm i got the idea look it up and compare

 

[Greebster]

Peroz, move the driver position closer to 1/3 toward the small end and it'll smooth out considerably. The correct position is not exactly 1/3rd but will get you close.

 

[peroz]

Peroz i did one to i believe somehwere int this topic to confirm i got the idea look it up and compare

So sorry I didn't use the search function before posting, but then again, it probably doesn't hurt to debate a little more.
My plot looks a lot like yours and other people's, maybe just a bit different because I did it for the Visaton drivers.
I, too, hear that needles sound notthing short of fantastic, and that's why the choppy plot looks so puzzling... I guess I'll just have to make these needles and hear for my self.
I'm still not sure about the proper way to "make the turns" when creating a model. When calculating the line length, one should draw the center line (in the corners also) and then measure it, but I'm not totally sure how to model the damn thing.