Tom C. asked me to post a description of how I generate
binaural beat frequencies. There might be a better way, but this one works fine for me.
I use a BrainWave generator that can be purchased at
http://www.bwgen.com/. Rumor has it that it is also available at various torrent sites, such as
www.demonoid.com, as well as at various Usenet newsgroups. There is also a free Gnaural 4.0 generator available from
http://gnaural.sourceforge.net/, but I have no experience with that one, as it does not appear to be as flexible as the one I use. BWGen runs on Windows XP and allows you to generate pretty much any wave profile for any duration of time. You also need a good sound card in your computer, capable of generating stereo output.
Binaural beats have no effect played through the speakers, so you also need a good, comfortable pair of headphones. In BWGen, you can create so called pre-sets to bring your frequency up or down at a certain rate, adjust the volume, etc., and send the output to your sound card. If you want to listen to your
binaural beats on your computer, that is all you need.
If, however, you want to take it with you, you need to capture that sound stream from your sound card and convert it to the format of your choice (*.flac, if you are a hopeless purist and nothing but lossless compression will do for you, *.wav, *.ogg or plain old *.mp3). For that you can use any stream capture software. I use Replay A/V :
http://www.applian.com/replay-av/index.php I tried other packages, but for me this is the best one I have seen.
As soon as I get a chance, I will post in this section a description of the pre-set I created according to Tom's suggestions. Good luck.