Why not just run the speaker output directly to an oscilloscope?
Or connect a microphone to your favorite lab data collection software?
Tim F
-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu
[mailto:phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Anthony
Lapinski
Sent: Friday, April 17, 2009 6:51 AM
To: phys-l@carnot.physics.buffalo.edu
Subject: [Phys-l] high frequency sounds
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?