View Full Version : Sound for tango

November 17th, 2009, 12:24 PM
I was wondering if you could help me with a problem that we are having with a tango class that we are teaching. It is a bit weird, or my electronics knowledge is a bit restricted.

As I mentioned, a friend and I are teaching a tango class in the university. For the music we use our laptops. The issue comes when we plug the laptops to a sound system using audio cables (red and white cables).

When the computer is powered using the battery, the sound is great. But, as soon as we plug the computer to the mains, there is a weird hiss coming from the computer. Some times the hiss can be quite loud and the quality of the music is lost.

I have no idea what is the reason for this issue, so, I was wondering if someone with experience with sound systems may have an idea to correct the problem.

By the way, this happens with both, linux and windows machines.