by Nicko » August 20th, 2007, 10:27 am
Try grabbing something like bwgen, or another binural beat generator. If you balance the volume right you should be able to overlay them, or join a wav export in audacity.
I also find listening some general ambient music, and imagining a beach, flying, etc for 15-20 mins before can get you in a better state of mind. I also had some luck with light and sound machines (but they can be pricey unless you build your own).