High Pitched Noise From Speakers

Have a set of logitech z523 speakers and asus xonar ds sound card,when the speakers are idle there is a high pitched whine coming from them,works fine when im playing music,also when i pause WMP the whine kicks in,anybody any ideas please?

Thank you

Hi

Do you have any other electrical equipment, wireless router etc near your speakers? If so, try turning them off one at a time and see if there is an improvement.

Regards
UKMedia

UKMedia said:

Hi

Do you have any other electrical equipment, wireless router etc near your speakers? If so, try turning them off one at a time and see if there is an improvement.

Regards
UKMedia

Is no electrical equipment near speaker and wireless router is about 40ft away,i use an ethernet cable?

this is may be from transformer, check out the transformer

Hashem said:

this is may be from transformer, check out the transformer

Went into the audio properties in windows 7,forget where played about there and set them as 7.1 speakers even though they 2.1,now all seems well!!

Confirmation: even on windows xp the noise is gone when you choose 7.1 home stereo setup instead of speakers for desktop

So I have had this problem for more than a year but is now solved. The setup is HP G61 laptop, 4-port USB hub, cheap external speakers powered from a USB port, Genius optical mouse (the culprit), Whenever I moved the mouse the high pitched sound would change, higher, lower, on-off etc. Disconnect mouse - noise goes away, reconnect mouse - noise returns. Move mouse connection to a different port and the noise is permanently gone! Suggested diagnostics: disconnect the mouse and check if the sound goes away. If "yes" then fiddle around with various USB arrangements to get the best performance. If "no" then the mouse is not the problem and you are on your own again.