You can easily do the same thing with plug-ins. Open an oscilloscope or frequency display in your DAW, set the plug-in’s input level (and output, if it has one) to unity gain, and send a sine wave through the device. Watch the output as you gradually raise the send level.
I can set up a test rig using MeldaProductions MOscillator and MOcilliscope.
MOscillator tone — MOscilliscope — insert plug-in — MOscilliscope
Always good to measure.
MOscillator is an anti-aliased tone generator plugin with adjustable oscillator shape. It can be used as a testing generator for analyses or, thanks to the versatile modulators, for more advanced effects such as sub-bass enhancement.
MOscilloscope is a powerful oscilloscope equipped with a pitch detector, which saves your time, because it just works…