Powered Mixer
I am plugging my laptop into a peavey powered mixer. Sound is good but when no music is playing I get a hum.?
The humming noise stops if I unplug the power cord from the laptop.I have used a sheilded cord it did not help
Mike - This is a common problem. It is caused by a "ground loop" between your laptop and the mixer. There is no free way to fix this assuming your cable is good.
One way to fix this is to buy a simple "direct box". The direct box has a transformer that will eliminate the ground loop. All you do is connect the headphone end of your cable to the laptop as usual and then connect the other end (1/4 inch) to the direct box. The direct box connects to the mixer with a standard 3 pin XLR mic cable.
Direct box:
http://www.zzounds.com/item--WHREDB1
Cable (if needed) to connect the laptop to direct box:
http://www.zzounds.com/item--HOSCMP15
When I connect the audio out from a laptop to any sound system, I always use a direct box.
How I Make My Drum Covers
|
|
IKEA Produkt Milk Frother $0.99 Get coffee house frothed milk at home with ease. The IKEA Produkt Milk Frother uses a simple vibrating wire whip powered by (2) AA batteries (not included) to quickly turn your milk or cream into a fun, fancy, and delicious frothy foam. Stop overpaying for premium coffee drinks or suffering with boring coffees at home. Get your IKEA Produkt Milk Frother today.... |
|
|
Black & Decker EHC650 2-Speed Food Chopper with 3-Cup Bowl $18.78 This electric food chopper accomplishes a food processor's principal function of chopping and mincing without having to haul out the big machine. It's just 8 inches high and 4-3/4 inches in diameter, and its 3-cup bowl is ample for many chores in a family household and most chores in a one or two-person household. At 150 watts, the motor is powerful enough to chop or mince vegetables, fruits, herb... |
|
|
Aerolatte Milk Frother, Satin $18.99 This cute handheld milk frother is fun and easy to use; British celebrity chef Nigella Lawson recommends it over steam-driven frothers. Plus, in addition to its most popular use--creating delicate foam for homemade cappuccinos, lattes, or hot chocolates-- the Aerolatte milk frother can be used for other, equally yummy treats. An enclosed recipe sheet offers ideas for fruit "shakes" and coffee frap... |
|
|
Astro Pneumatic 4550 Air Operated Paint Shaker $122.99 The Astro Pneumatic air operated paint shaker features a patent pending orbital drive mechanism that provides quieter and faster operation.... |
|
|
Quantum 600 Watt Dimmable Electronic Ballast $142.95 Quantum Series Lighting is now the paradigm of lighting technology. Quantum Horticulture analyzed the mistakes and failures made by others in their quest for digital lighting, and utilized that knowledge to bring us the best in high intensity illumination. The Quantum Series digital ballast has features not found with any other brand of ballast currently on the market. Every need of both the hobby... |
