is just ultrasonic good enough or should masked tracks be used?

[Shannon]

Hi bits! Welcome to the forum.

You can do either, whichever you prefer.

Each different track for a program, has the same subliminal audio on it.

Ultrasonic's subliminal audio is as loud as the masked audio of masked tracks. Masked track's subliminal audio is a bit lower than the masked track to blend it into the background (trickling stream/ocean waves). Due to this, they can hit different parts of your subconscious, that is a bit more indepth than necessary just starting out. That isn't necessary to delve into now.

Just know that the same audio is on each file, and you can use whichever you like the most and get results. Make sure your audio equipment can play ultrasonic, anything rated up to 20,000khz is fine. Use a phone app called Frequensee to make sure it's playing, and that you don't hear any staticky sounds, just "silence". Then you know it's working. Masked tracks are easier to run, as pretty much any half-decent working speaker regardless of quality can play masked fine.

That should allay your fear! Looking forward to hearing about your progress.

The ultrasonic audio subliminal data is as loud as the audible masked track, but the subliminal data on a masked track is significantly less loud than the subliminal data on the ultrasonic track. One uses pitch differencing to create an ultrasonic subliminal, and the other uses volume differencing to create a masked sublliminal.