Sxpoet,
I think your wife would like this because it reduces the sound but allows you to keep your embouchure muscles in tone with these strength exercises. It comes with a 44 page in depth booklet coaching you as how to use the silencer for best results and which muscles with the exercises it is working on. You also get a sound training dvd with the unit. I started using it yesterday and this morning while my wife is sleeping I can still use it without waking her. If I was on the sax or just the mouthpiece I would definitely hear about it.