[plug]audio cds, was slowdown probs

[Arkem]

> you shouldnt be able to hear a 27khz sine wave, but you can notice
> a slight difference in the sound of a 9khz square wave over a sine
> wave. i dont know why , but if someone with more knowledge about
> human hearing can fill us in on this , it would be appreciated.
> as i said previously , have a listen to something on scd and
> compare it to standard cd.

Human hearing range is approximatley 20Hz-20kHz and intensities above 
0db but below 120db (that is the pain threshold... above this it 
hurts and causes damage). So theoretically you couldn't hear a sound 
at 27khz though I get the impression that you are confusing scales 
somewhere but I could be totally wrong.

Regards,
Paul Chamberlain