Shannon's Journal

[Shannon]

In your case, I would say listen to the Learn Japanese Faster And More Easily while you sleep, and while you are studying Japanese. However, make sure that there is a significant break between sleep and studying Japanese. If you do 14 hours a day you're pushing it, but as long as there is a break between when you sleep and study Japanese (both after awakening and before going to bed) it should be okay in this particular case. You'll want to take a couple days a week off completely from the sub during the day and use it only at night. (Weekends?)

As for the speakers, you want to avoid using ultrasonic audio with headphones or earbuds. Use the masked version for that. Play the ultrasonic on speakers, if it is at all possible.

All three are good options for reproducing ultrasonic audio, but the best is the Koss Porta Pro, followed by the Creatives and then the Genius. However, two of these are headphone types, and I disagree with using headphones, and especially earbuds, with ultrasonic audio.

It is possible that you'll have the ability to hear the ultrasonic regardless of what you use to listen; is the masked version not an option? Using that would save you the hassle and money. But if you want to get one of these, get the Genius. It's the only one that is a speaker design.