Hmm, I guess you could probably automate the Sonitus EQ that ships with Sonar to do this. Don't know how though. Think I had an article on the Sonic Timeworks EQ that shipped in Sonar 2 XL. In that article, it explained how to achieve this. I guess the same principals could be applied. ----- Original Message ----- From: Stacy Bleeks To: ddots-l@xxxxxxxxxxxxx Sent: Wednesday, September 24, 2008 10:35 PM Subject: [ddots-l] envelope filter? Hi. Anyone know of an envelope filter plug in effect that works with the Sonar/CakeTalking combo? Envelopoe filter might be called other things too, but it is the effect that sort of muffles a sound and allows you to open the soudn again in a kind of swooshing sweeping effect. The envelope can open quickly or slowly with more or less intensity. Thanks and sorry bout my non technical quick and dirty explanation.