EHPRA 2.0

[CatMan]

So I have finally got my nice new speakers set up and sorted to play ultrasonics @ 22khz range

http://www.amazon.co.uk/M-Audio-BX5-D2-S...-audio+bx5

I've tested with freequensee and it spikes just under the 20k mark @ -60 DB is this ok I wonder?

-55 to -65 is pretty much what most people will want for where they are listening.

Okay nice, cheers.

I'm curious, on freequensee it peaks just under 20khz is this the limit of your subliminals' frequency? Or perhaps it's the limit of the Ipod?

In Frequensee, you should be seeing a peak at 17.5khz. As long as you have that, and the volume is set right, and it's silent and not making any scratchy staticky noises, you're cool.

Ipods can play up to 20,000khz, so that should be fine, it's got a bit of buffer.