![]() ![]() Currently you've got offset in the Z plane, but no X and Y. You've already mentioned adding in the ability to set the mic distance and presumably entering in the software the relative positions of the drive units to the mic. Like if you had a mid range driver and needed to set the target to have a high and low pass together. IE you right click on the driver and an additional option 'target curve' appears there, you select it and then you can define exactly what you want it to be, including setting the level of the target and adding in multiple curves. It'd be nice if you could add in a little section to each driver where you have it's target curve associated with it. I know that it can do this if you want it to by importing a curve, but this is a hassle. The only things missing from what it can currently do would be the ability to add in target curves, such as a 4th order LW low pass at 2000Hz, for example, on your mid bass. It appears to add in smoothing though with no way to turn it off. I gave it a quick whiz, it does what it needs to to get nice results. Maybe someday we can get to let these files be attached? They are only text, no way for a virus to sneak onboard one of them!Īdded Nov 2017: There is a procedure summary for collecting and adjusting driver FRD data for correct relative delays (which you need to accurately simulate crossovers) here - XSim free crossover designer On downloads, do the opposite: unzip and then open the. So you'll have to first zip the file and then post the ".zip" file containing the ".dxo" file. ![]() dxo files (or other files it doesn't know about). Įdit: * as it turns out, this forum doesn't let you attach the. There are also as yet no box-design features, but this is also planned so that full designs can be worked with using the infinite baffle data provided by vendors. But that is in the works, with some assistance from Jeff. XSim does not yet include geometric features (such as varying mic position, baffle or boundary-bounce effects) as in Jeff Bagby's very successful "PCD" and other programs derived from it. XSim can also update its own program (with owner permission) so people who use it online can always be up-to-date.And so I can add or fix features without asking you to deal with downloading and installing each time. XSim will be able to download these lists itself, when available. However, no vendors are as yet signed up to provide XSim access to part or driver information. Stuff yet to come: The release version of XSim featiures automatic downloading of part and driver information based on vendor and part number, making it easy to find and order what you need to turn your design into working hardware. A common "ground" node is provided, but its use isn't required.Ĭircuit designs (incuding all in included driver data sets) can be shared by email or forum post in XSim's ".dxo" format.* Graphic files can also be saved in standard picture file formats. Essentially any R-L-C passive network you can think of can be easily entered using graphical schematic entry, with results calculated as you design. The "free-form" aspect of XSim is that crossover designs are unrestricted, no particular circuit structure need be used. The circuit network is re-solved automatically with every change you make. ![]() You can watch the performance and/or stress on any part vary as you tune structure or component values in real-time. XSim allows you to see simultaneous multiple graphs of your choice, including impedances, voltages, power consumptions, group delay, and frequency, impulse, step, and square wave responses. There are "Example" files inlcuded in the XSim download (currently less than 1.5MB) as well. Some built-in multi-part "Circuit Blocks" also provide for basic pre-configured circuits to be tuned per their overall parameters (Q, corner frequency, attenuation, etc). Any speaker builder with at least a basic understanding of what resistors, capacitors, and inductors do, and with decent response measurements (FRD and ZMA) of their drivers in their boxes, should be able to get useful results right away.Įxperimenting with "ideal" driver data (the default for each driver) can also be fun and helpful in understanding the effects of various circuit types. The program is ***free*** for personal or commercial use. ![]() I'm announcing the public release of XSim, a "free-form" Windows-based passive crossover design and simulation program intended to be as intuitive and non-restrictive as possible. ![]()
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