A very simple controller. Takes the output signal from another controller and allows you increase or decrease it via multiplying that signal. Also inverts the input signal if it set to a negative value.
Why would this be useful? You could then use an LFO or peak controller as a master controller and have these multiplier/inverters synch with it, but outputting values that would be useful for different instrument functions. I might want some complex effect where an peak controller controls volume, cutoff, and pitch at the same time, but the values put out by that single controller aren't going to be correct for all things I want controlled by it.
Why would this be useful? You could then use an LFO or peak controller as a master controller and have these multiplier/inverters synch with it, but outputting values that would be useful for different instrument functions. I might want some complex effect where an peak controller controls volume, cutoff, and pitch at the same time, but the values put out by that single controller aren't going to be correct for all things I want controlled by it.