Re: [Phys-l] high frequency sounds

[Stefan Jeglinski <jeglin@4pi.com>]

> This may seem a bit odd, but I (supposedly) have some "high frequency"
> sounds on a CD that are meant only for dogs to hear. Of course, I can't
> hear anything when the disc is played! To be sure the disc is not blank,
> is there any way that the sounds could somehow be reduced to "normal"
> listening frequencies? Is there any software that could do this?

If the CD is not blank, inserting it into a computer and using the 
resident operating system's ability to view the files will allow you 
to "see" if there are any sounds on it.

Yes, there is plenty of software out there that will load a sound 
file and perform all sorts of manipulations on it.


Stefan Jeglinski