Posted by manguiko » Mon Oct 06, 2008 7:38 pm
I have a suggestion, based on my own experience, and on some of what is described.
Perhaps it might apply.
When I monitor with my earphones, I do HEAR SOUNDS that ARE NOT discernible when using speakers.
The reason may be either at the high frequency, or at the low frequency, depends on the contents of the source, and specially when live playing of instruments that produce much richer frequency range than most recordings.
The earphones usually can produce HIGHER frequencies much better than speakers, but can choke or distort when playing LOW frequencies. When they can not handle EITHER, they can sound like problem noise. Speakers, on the other hand, are more 'noble' in that they just don't respond in such cases, where the source IS calling for those sounds.
With better earphones, one can hear the correct sounds.
Now, why in Audacity, and why not in Vista recorder, or other?
THAT could well be because Audacity has a BETTER fidelity of recording THOSE more demanding sounds than the Vista recorder, which simply does not record them well.
You do say that with speakers the problem is not there. That's why this explanation might apply.
you can then filter out the input, or see if your earphones might have a problem. Perhaps, also, your speakers are much better quality than your earphones?
Good luck.