Audacity Forum

Tryed using wall powered usb-hub given me by my friend. Sadly it didnt solve the problem.
Next step I guess is to try and find what might be cousing ground loop. Not sure how much time it will take.

The left channel is virtually empty (no signal above -90dB according to the Plot Spectrum analysis). The right channel, either side of the voice saying "Test", has lots of low frequency sound (200Hz downwards) including lots of subsonics. The spectrum looks very similar to that which I get using my...

That sounds like a laptop power supply. If you're using a laptop, try running on batteries. I tryed this with partial success. Noise stil present with adapter unplugged but gets away if I play a litl with usb plug. I get the same noise on laptop and desktop. That's not enough words to explain what ...

However, I think we're discussing a much more efficient bucket for bailing a leaking boat. Why are you getting noise? Does this device get its power from the USB connection? It's convenient, but the worst possible way to get power. The 5v from the USB connection is "dirty" with hash and instability...

Hello everyone. My soundcard(lexicon alpha) generates hight pitch noise while recording. I can get rid of that noice by noise removal filter but now I want to make task automated. Since noise is always the same I can record noice example track once. Is there any way to make noise removal filter to u...