This thread got me up and running using the optimizer. Wow, works like a champ, so glad I tried it as inspired here.
I'm hoping to get some help with a question that's been bugging me for awhile now. I can't figure out how or whether VituixCAD uses the voice coil inductance in the simulations. It appears there are ways to input the voice coil inductance or to turn on advanced(?) inductance simulation in the enclosure tool, but I can't find anywhere to do it in the main crossover simulation context.
But, when I do simulations, the results appear to show what I'd expect with respect to simple coils on woofers not doing the text book thing due to interaction with the voice coil, and the simulation is very accurate to measured results. My impedance files from DATS have the voice coil inductance value in the header of the file, so I suppose it's possible that VituixCAD could be parsing in that information?
I don't know how I'd use these capability since the simulation appears to be so good without me knowing, but it's driving me crazy to not understand how this most fundamental property is managed.
For enclosure simulation, include inductance by right clicking on the SPL response and select "show effect of inductance". Simple inductance value does not provide much benefit, extended impedance model is best for curve fitting of actual driver impedance. Best use of the enclosure model is with your own measurements, so use the T/S calculator within VituixCAD and solve for extended Z.
Comments
Great tip Bill!
This thread got me up and running using the optimizer. Wow, works like a champ, so glad I tried it as inspired here.
I'm hoping to get some help with a question that's been bugging me for awhile now. I can't figure out how or whether VituixCAD uses the voice coil inductance in the simulations. It appears there are ways to input the voice coil inductance or to turn on advanced(?) inductance simulation in the enclosure tool, but I can't find anywhere to do it in the main crossover simulation context.
But, when I do simulations, the results appear to show what I'd expect with respect to simple coils on woofers not doing the text book thing due to interaction with the voice coil, and the simulation is very accurate to measured results. My impedance files from DATS have the voice coil inductance value in the header of the file, so I suppose it's possible that VituixCAD could be parsing in that information?
I don't know how I'd use these capability since the simulation appears to be so good without me knowing, but it's driving me crazy to not understand how this most fundamental property is managed.
Cheers,
Jamie
For enclosure simulation, include inductance by right clicking on the SPL response and select "show effect of inductance". Simple inductance value does not provide much benefit, extended impedance model is best for curve fitting of actual driver impedance. Best use of the enclosure model is with your own measurements, so use the T/S calculator within VituixCAD and solve for extended Z.
For datasheet models, you can get a functional impedance model by tracing the manufacturer data. I made some simple instruction for this here: https://www.htguide.com/forum/articles/do-it-yourself-diy/927414-how-to-vituixcad-extended-impedance-model-for-any-driver
More information is in the VituixCAD Manual, search "impedance model".
https://kimmosaunisto.net/Software/VituixCAD/VituixCAD_help_20.html#Enclosure_tool