So once upon a time I used MLSSA for measurement, LEAP for enclosure simulation. I don't think I can run any of that any more, certainly not on my Macs. I'm wondering what softwares folks are using now
- For rough "put in some Thiele-Smalls and generate boxes like they are electrical circuits"
- For designing with actual response and complex impedance data like LEAP did
- Something that would let you simulate different voice coils and windings. Like SpeaD but not $1700, I just want to do some curiosity modeling. Jeez I wonder whatever happened to the Excel sheet I used to use to calculate voice coils...
- Big bonus points if someone can point me to a package that can do tone burst simulations.
Virtuix CAD for simulation of pretty much everything and ARTA/REW suite of software for measurements.
Akabak has served me well for simulations of hundreds of speakers and can do complex geometry for innovative waveguides/horns/TLs. REW for measurements and Xsim for crossovers.
I suspect you need a windows box anyway for any of the free simulation software.
Ralf
It's possible, I do have access. I'm not doing much actual design work but there ARE some topics I'm interested in.
- For instance, I recall back in the day simulating stronger and stronger magnets with the same coil/cone/etc yielded more and more midband output. BUT the output at low frequencies overlaid the same given the same box. I'm curious to work somewhat the opposite: same magnet coil etc but heavier and heavier cone, again in the same box.
- In another thread I was recollecting that you cannot make the same speaker (i.e. magnet and cone and suspension) have exactly the same parameters in 2/4/8 ohm versions. I want to re-examine my assertion.
My kid needed this for some class at Cornell, Boot Camp IIRC. Kind of a mess though it worked but took up space from the Mac side etc. I'd just borrow a Windows machine. Actually for that second point I wanted to research I could just use an online simulator.
Ugh, I cannot find anything online that operates from Mms, Cms, Bl, Ql
Can you go into "parameters of a single unit" and change, say, Mms, then rerun the curve? Or you can only input "drive unit parameters" which then calculates Mms etc?
I would like to find a little utility where I can input Mms, Cms, Bl, Sd etc and get out Qts, Fs, Vas. That would let me use various regular box simulators to investigate the very low frequency response. When I pull out my copy of Small's thesis and look the the square roots part of my brain says "hey come on you can still do this!" but other parts just feel tired thinking about it and reply "OMG hasn't someone done that already?!?" 😆
Given a driver's electro-mechanical parameter values, Hornresp can calculate the equivalent Thiele-Small parameter values.
(Mmd rather than Mms is used as an input, however).
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I couldn't resist whipping up a small spreadsheet that uses Mms rather than Mmd 🙂.
Inputs are the blue values, highlighted in yellow.
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Oh what a jolly good fellow you are!! With this I can then just use some online or Mac-usable (which? gotta reread this thread ha ha) calculator. A basic electric filter model is good enough for what I want to chase.
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Well, not quite true I realized. I need something that can accurately output in decibels per volt, not just versus "0 dB" and also accurately compute the effects of multiple drivers in one box versus a single driver.