I took Bob McCarthy's SIM class a few years ago, and have some of experience driving SIM3, though mostly in a controlled 'lab'-like environment.

While I've certainly still got a lot to learn, dual-channel FFT measurements aren't completely new to me. Since we generally mix ourselves from stage, and setup is often space- and time-constrained, I don't expect to do much in-situ at present. I'd simply like to measure our system's response in controlled conditions and create an EQ preset in the mixer based on something more precise than my ears. I wouldn't say there's a particular 'problem' I'm trying to solve. Thanks Frank I'll look into ARTA as well. The documentation is a labor of love and a great learning tool, too, IMO. If your goal is to learn your way around discrete Fourier transform (DFT) based measurements, ARTA is an excellent, low cost start. You explicitly set the window on the impulse response before calculating the frequency response, for example, so you know exactly what you're getting. I see ARTA as more of a precision lab tool. Because of the 'live' transfer function display, Smaart is great for experimenting and getting a feel for the effect of changes in the measurement environment. No doubt Smaart is easier to use in a portable live sound setting where you're trying to verify system health and time align subs under time pressure. I use them both and the results compare well. A personal use license is only ~$120.ĪRTA is not equivalent to Smaart but is a very nice set of tools and allows you to make many of the same kinds of measurements.

As Bennett said, it would be useful to know what problem you're trying to solve, but you may want to have a look at ARTA in any case.

Smaart live for mac