Nah kids have much higher frequency hearing. Makes me wonder about that old app that apparently you can only hear under a certain age.
Shannon can probably go into more detail about it.
As for listening, yes headphones get maximum result but I listened to programs for like a year without them and still got great results. And it's true not to use ultrasonic with headphones cos it's easy to have it too loud.. but you can use the masked versions which has the exact same content. The confusion may have come from not realizing that on each program the tracks have the same content (ultrasonic/ocean wave/trickling steam) you can use the other 2 with headphones but not ultrasonic.
I am the one who uses programs at night on my cd player while i'm in bed. And through the day on my computer, some of that with headphones. Phone speakers can work, but if they are not stereo it won't be optimal.
Hope that helps.
-Ben
Shannon can probably go into more detail about it.
As for listening, yes headphones get maximum result but I listened to programs for like a year without them and still got great results. And it's true not to use ultrasonic with headphones cos it's easy to have it too loud.. but you can use the masked versions which has the exact same content. The confusion may have come from not realizing that on each program the tracks have the same content (ultrasonic/ocean wave/trickling steam) you can use the other 2 with headphones but not ultrasonic.
I am the one who uses programs at night on my cd player while i'm in bed. And through the day on my computer, some of that with headphones. Phone speakers can work, but if they are not stereo it won't be optimal.
Hope that helps.
-Ben
