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Why would on-board speakers sound scratchy but headphones sound OK?
Why would speakers sound scratchy, but headphones and external cabled speakers sound OK? I have a Dell Studio 15 (1555) running windows 7 Professional.
236GB used, 214GB free space
Intel P8700 2.53 GHz Processor
64 bit OS
4GB memory
The built-in speakers used to sound good but now they are too scratchy to understand. However the headset sound is good. According to the Dell Support Assist utility, the sound card is "ATI high Definition Audio Device" and "IDT High Definition Audio CODEC."
Microphone test -- earphone playback is OK, on-board speaker terrible.