Originally Posted by
Sageous
About 15 years ago I bought a thing from the Lucidity Institute (aka: Stephen LaBerge) called the Dream Speaker. It hooked up to my DreamLight, which was the (vastly superior) precursor to the NovaDreamer.
You would record whatever you wanted into the Dream Speaker (I had my wife say, "This is a dream"), then plug it into the DreamLight, stick the Dream Speaker under your pillow, put on the DreamLight's mask and go to sleep. When the DreamLight detected REM, the speaker would go off at whatever volume and interval you preselected. If your expectations and intentions were well set, when the thing you recorded wanders into your dream, you'll remember that you're dreaming, and the fun begins.
I didn't use it much -- I was always too light a sleeper for stuff like this, and the machines always woke me up, no matter how much I wanted them to work. Regardless, suffice it to say that the idea and the technology have indeed been around a while. As Dutchraptor said already, they even named this "method" EILD (Electonically Induced Lucid Dream).
Keep in mind, though, that it would only be worth trying if you could sync your recording with REM. I don't think there's an app for that yet, though I do know LaBerge is working on one.
So yes, IANthedrummer, though this idea is a good one if done correctly, it isn't terribly new. I hope, though, that it works for you!