I have an HP portable that I am using to DJ with that I am getting sound noice. It's an annoying crackling. It is at the same level no matter what the volume is set at.

I believe it has to do with the power supply because when I unplug it and go on battery it is a lot quieter. The sounds seem to come out when the hard drive is spinning.

This is a relatively new laptop.

Any suggestions?

R.

HI found this info else where (Below) but it seems to make sence but I don't think it's a good Idea to remove the grounding pin this seems to be happening to a few people I would suggest trying a Power Line Filter or a better power pack for you PC


If I run on battery power, no noise. More interesing, if I disconnect ground pin on the power cord (via a ground life), I get no noise. It's major too. Not a little, a lot. And it happens even if the audio channels going to or from the laptop aren't active. Oddly, lifting ground on all the other devices doesn't cure the problem.

Standard caveat: disconnecting the groundpin on a laptop power plug doesn't seem like a very smart idea, if not an outright dangerous idea.

Anyway. I don't know if it's really relevant to you or not. But, in my personal experience, lifting ground on a laptop power adapter *may* improve noise in the rest of the system.