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Originally Posted by carol m
I have PM’d you with some more questions about that so I don’t bore the other members too much. Hope you don’t mind - just ignore my PM if its all ‘too much’ and you need a break.
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You have PM.
Also, you can post it here since it sounds like others would be interested in hearing it also.
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I'm not sure how that would test if it is the soundcard at fault, because the interference starts before I log in (to Windows) to open Windows (before you get that Windows 'opening' music), so there is no way I can see or hear anything coming from a mic input until I open Audacity (or similar) which I can't do until Windows (and desk top etc) are 'open' to link to Audacity.
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The sound actually turns on "before" the windows screen finishes loading (when the blue bars are still loading as you described above). I've done this many times myself.
Do you have the mic input muted in your sound card's mixer for playback? You should have done this for recording in Audacity, since you hear the mic through Audacity. But you can use your mic without Audacity or any other software open by un-muting the mic input in the mixer window.
Try un-muting the mic input and then reboot your computer and talk into it while your computer reboots, you'll hear the instant the sound kicks in. This is why you get noise at that time also.
*** You will want to mute this before recording in Audacity again, otherwise you will have sound from the mic input AND when the mic signal goes through Audacity.
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One other thing, but probably of lesser importance, is the cabling between the computer 'sound out' to my CD and sound system etc.
At the moment it is a simple thin cord (like a headphone cord) that is 5 metres (16ft) long. I assume this would only affect the quality of the sound I get from the computer, and not the interference problem?
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It never hurts to try. One way to test this would be to un-plug it completely and try a test recording with no speakers connected. Then you'll know for sure if it is causing any problems or not.
-tkr