Yes, it's easier if you use a software program to overlay multiple tracks and that has a separate volume control for each track. It performs the function of a hardware audio mixer.
You may record your own voice to disk and use that or you could use existing tracks from a tape or CD or both. You can then overlay a track created using BWGEN so that you have binaural beat frequencies embedded.
I have also used text-to-speech software to create voice tracks for this purpose. If you need masking sounds, there are numerous sound effects available. If you're also a musician, you can create your own music or use music creation software, drum machines, etc.
Try using the 60 bpm rate like the Lozanov or Superlearning protocols if you want to learn new material or enhance personal development goals.
You can develop your own programs that are more powerful than anything on the market at a much lower cost. Who needs Centerpointe 
? You're only limited by your imagination.
shr33m
