The program has 7 different ways to entrain brainwaves. But only 2 are practical options without headphones:

"Pulsing" and "Low-Pass Filtering."

Here are the descriptions :

2) Pulse (Isochronic / Volume Modulation) - This method simply increases and decreases the volume of the sound files in a triangular pattern at the specified rate per second. This is the oldest and, according to many, the most effective form of entrainment - though it is probably the least subtle.

This method will work with mono or stereo files and doesn't require headphones.

3) Low-Pass Filter Modulation - This method removes high frequencies in sine waves at the specified rate per second. Used properly, it can be an incredibly effective and subtle way to present a repeating stimulus. It can also be used to make "ocean wave" sounds out of noise or similar sound arrangements.

This method will work with any sound file and doesn't require headphones.

Today I finally had a chance to try an Alpha-Theta program I made using both of these options with a new age soundtrack. It was definitely effective. But unfortunately, the construction workers (whom I thought were done for the day) started hammering outside my apartment again about 30 minutes after I started the program. I do NOT recommend being exposed to loud hammering in the middle of a Theta state!



But, I can at least verify that the entrainment does work without headphones. Although I still have yet to try it for LD's. Hopefully the construction will be over in a couple days and I can finally try some of the LD programs I made.

One suggestion though: If you buy or download the trial of this program, I highly recommend investing in some CD-RW's. I went through a bunch of my CD-R's from trial and error...