From mate.stubb@gmail.com Fri Oct 07 07:36:08 2011
Subject:Re: Pwer noise from laptop Audio out

This is a fairly common problem with laptops. The internal sound card is
inadequately shielded for being so close to other electromagnetic
interference generators like the hard drive and power supply.

You might try an external audio interface. As you have noted, it usually
works fine if running off the battery.

Dave Bradley

On Fri, Oct 7, 2011 at 9:32 AM, Bobby Simons wrote: