High Pitched Static whenever sound is made.

Toshiba Satellite l355d-s7809 notebook
December 29, 2009 at 13:03:23
Specs: Windows Vista
My laptop's built in speakers have been emitting a high pitched static sound whenever a sound is supposed to be made normally through the speakers. You can faintly hear the orginal sound if you listen closely, but the volume of the static is much higher than that of the sound. It doesn't matter whether I'm using a media player, a computer game, or just the sounds windows makes to express an error, or just test the speakers. The static remains as high pitched and ear piercing as ever.

I have tried updating, rolling back, uninstalling/re-installing sound drivers to no avail. I have disabled the microphone (even though there is no built-in microphone, or if there is, it's not picking up any sounds made.) I've tried several other commonly found solutions to have no success.

The only things that seem to change the way the sound is emitted are when I installed silverlight, which caused the static to be made in a lower pitch, but the original sound supposed to be heard is not able to be heard at all anymore. I then tried with and without silverlight installed to change the speaker quality from 24 bit to 16 and all the different settings under properties in the advanced tab, and it changed the static from being only on the left or right side predominately.

All this leads me to belive that it is a hardware problem, but I have no earthly idea as to what to do.

The sound is coming from the speakers. not around the speakers, from the speakers. The sound's volume goes up and down with the volume controls, so 100% speakers... somehow.

Help is much appreciated, and I thank you in advance.

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December 30, 2009 at 05:20:58
Sounds like you're right and it could be a problem with the actual hardware. What happens when you try headphones or an alternative output? Same noise or does it disappear?

It seems quite unlikely that it would be related to Silverlight.

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December 30, 2009 at 08:29:26
The same noise occurs with both headphones and external speakers.

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January 19, 2010 at 16:42:09
I had the same problem (running Win 7) - what worked for me was disabling the Stereo mix with your soundcard. Now I had enabled it to use Audacity but this was probably a about a week earlier, and just suddenly occured to me it might work.

If it doesn't, I feel for you - drove me mad after only 20 minutes!

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