#1
I don't know whether this is the right place to write which i apologize for
Now the problem - I'm using audacity to record some bass stuff [melodies and demos mainly].However, when i try to record something a nasty whistling sound occurs and when i try to record louder, the sound gets louder as well.I tried another program - the same happened.Then reinstalled my sound card drivers but the problem didn't go away.I recently changed my motherboard and my graphics card but I hope the problem is somewhere else.Thanks in advance - I hope you could help me
#2
Try turning the pots on your bass down.

Check you don't have any strange options on your soundcard enabled, open up sound manager from the control panel a lot have "noise removal" which is terrible.
#3
I still have the noise while recording.I tried everything I could think of but unfortunately there's no success.When I play old recordings they are ok.I also tried to record both plugging the bass directly into the computer, and through a microphone - the same.