Buzzing sound

[BMAN]

Right, so I have a cable that has a headphone plug on one end (for the laptop) and an RCA AV end to plug into my receiver or amp. I get a buzzing sound everytime (with some recognisable noise). Not likely a hardware issue, but I was curious as to know whether or not someone would know the cause of this sound.

[geoff-h3o]

I'm not an expert in this  but maybe it's an earth problem - have you tried a different cable,  or plugging the cable in to another amp ( or another input on the same amp?)

[BMAN]

The cable works on all other devices. And I've tried plugging the laptop into a few other speakers and stuff as well.  Could it have something to do with the surrounding environment?

[patio]

RF can come in many forms including but not limited to cordless phones, microwaves, stereo equipment etc.....
Still could be a grounding problem though.

[BMAN]

Yah I have no idea what it could possible be. A certain type of material, like some sort of metal perhaps?

[geoff-h3o]

 If its not the cable and  its not the laptop maybe the amp,or those particular inputs? Presumably the amp works with other devices?

[jerryheavyarms]

RF can come in many forms including but not limited to cordless phones, microwaves, stereo equipment etc.....
Still could be a grounding problem though.

I agree with Patio. I had the same problem. Sometimes, its just the headphone jack or the RCA jack doesn't contact well on the slot...