I thought autowah and envelope filter were two names for the same thing. What's the difference?I'm more into autowah than filter, so I guess the perspective is a bit different. After trying many (most are listed in my profile), I couldn't help but go back to the venerable Digitech Bass Synth Wah. It can do decent filter sounds and a whole lot of wacky/unusable other sounds, but modes 1 and 2 are where the meat is for me. Granted, this pedal is not everyone's cup of tea, but then filters are such a personal choice.