Ok. Brass instruments have had that Silent Brass system for a while. Most sax players wish they would use it all the time ;-). Now, it seems saxophone players can have something similar.
E-Sax is a new case/silent practice thing. Interesting stuff. Looks really funny, but they say it works. You can even do Karaoke with it. Woohoo!
I have always been hoping for some sort of noise cancelling system to come out. A system where you’d hook a mic up, and while you play a digital box takes your sound, and then produces and blasts out the inverse and cancels out the sound. Perhaps someday….