After reading about some of the sound tracks and how dream masks work, I had an idea for a simple mp3 sound track that could help you gain lucidity.

Here's the theory behind it, a dream mask blinks leds every so often so that when you're dreaming you realize it, couldn't you do the same thing with sound?

You could either use a looping sound track that has several hours of nothing, and then a repeating recording of your voice letting you know that you're dreaming for 2 minutes.

Or, (and this technique requires a smaller file, but would be potentially less effective) you could simply make a recording of your voice, and then set it as the sound for a phone alarm.

what do you think? would this work?