Noise on my speakers when laptop is AC powered

Noise on my speakers when laptop is AC powered

PaJaRo View Member Profile	Oct 12 2008, 22:59 Post #1
Group: Members Posts: 101 Joined: 12-June 08 Member No.: 54275	Hello, I'm using a laptop with an Edirol UA-1Ex usb sound card, when my computer is plugged to AC I hear some noise on the speakers, I thought it could be due the unbalanced outputs, so I tried to put the cables far from the AC adapter, but the noise stills. Moreover when I do something cpu intensive tasks I hear more noises (while cpu is working hard). If the AC adapter is unplugged I don't hear any noises. I want to know if using a balanced outputs will solve the problem, or any other suggestion. Thanks in advance.

Replies

AndyH-ha View Member Profile	Oct 13 2008, 06:03 Post #2
Group: Members Posts: 2038 Joined: 31-August 05 Member No.: 24222	I have not dealt with the problem myself but I’ve read numerous complaints and suggested remedies. The problem is usually the basic design of the laptop power supply, but the fix seems to be quite variable. That is, repeated reports have said that what works with one model is sometimes useless with another. If users are telling the truth, committing much money before knowing that the equipment will actually work could be rather frustrating. You might like to look at these threads and also consider a search on laptops and noise at the same forum. http://www.audiomastersforum.net/amforum/i...pic,6168.0.html http://www.audiomastersforum.net/amforum/i...pic,3809.0.html

Posts in this topic

PaJaRo Noise on my speakers when laptop is AC powered Oct 12 2008, 22:59

Roseval I’m afraid the PSU is very noisy and/or your sound... Oct 12 2008, 23:25

PHOYO QUOTE (PaJaRo @ Oct 13 2008, 00:59) Hello... Oct 12 2008, 23:33

mixminus1 I come across this quite frequently at the confere... Oct 13 2008, 00:08

PaJaRo QUOTE (mixminus1 @ Oct 13 2008, 01:08) I ... Oct 13 2008, 01:30

mixminus1 QUOTE (PaJaRo @ Oct 12 2008, 17:30) I... Oct 13 2008, 02:17

Glenn Gundlach QUOTE (mixminus1 @ Oct 12 2008, 15:08) I ... Oct 13 2008, 05:04

AndyH-ha I have not dealt with the problem myself but I’ve ... Oct 13 2008, 06:03

uart QUOTE (PaJaRo @ Oct 12 2008, 13:59) Hello... Oct 13 2008, 13:13

PaJaRo QUOTE (uart @ Oct 13 2008, 14:13) Hi PaJa... Oct 14 2008, 00:49

ShortScopeBoy QUOTE (PaJaRo @ Oct 12 2008, 15:59) Hello... Oct 15 2008, 09:06

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