Just to throw to another thread before this one gets put to bed, I’ve found that Couture seems to crash Audacity, at leaast my install does. Not all the time, but some of the time. And I was poking around the boards investigating expanders and I happened across this in the Nyqust dev board about Chris’s compressor. Would this do the same thing as Couture if set to negative values then? What’s the difference between the two? Or perhaps, is an expander a backwards compressor?