I've recently started studying Andy Farnell's book Sound Design and am learning a few new things about Pure Data. Sometimes the Math concepts are hard to wrap my head around but I'm mostly hanging in there. In this example link text, he shows how to use a [lop~] to in lieu of a [line~] which I'd never heard of doing before. Could someone explain to me how this works? I imagine it has something to do with the lop~ needing one full period of a 1Hz wave to check if incoming sounds are below the point of 1 or not before letting the changes through... but I really don't get it. So to clarify, my questions are:
- How does it work?
- How would you get envelope lengths other than 1? I tested, and it doesn't seem to operate on a Time to Frequency relationship. A frequency of 0.25 seems to make an envelope faster than 4 seconds.