Audio Noise.

**Jcarere** · 08-25-2005, 01:24 PM

I currently have my car computer running a 4 ch amp and a 2 ch amp for my subwoofers. When my computer starts i get a huming sort of noise out of my speakers. It is always on when the computer is on but it is not the amp because I have run that off of a head unit before. My setup is that my comp is run off a inverter in the trunk and it has a 5.1 sound card installed. Just wondering if this is invertor noise or something else. Thanks

**w143r** · 08-25-2005, 03:11 PM

There are many reasons why there is a hum noise. I'm going to guess it is due to distortion from outside sources. Both a PC and a Inverter generate electric disturbances around them and that is what distorts the sound. I'm sure you've had a cell phone next to a speaker and it made sounds before. It is the same concept. Try having the speaker wires further from your setup, see if that helps.

**Jcarere** · 08-25-2005, 03:57 PM

Ok ill try that thanks.

**Jcarere** · 08-25-2005, 10:51 PM

Does anyone know of any sort of emi shielding for cables that I can add or encase my psu and inverter in. Just looking for a solution, and it seems its only happening to my rear speakers dont know if that helps. My computer and inverter are in my spare whell well with the amp about 3 feet away threw 3/4 inch mdf and padding and carpeting.