Re: Feedback when white nosing a g...
This comes down to your audio interface - how many outputs can it handle?
If its only two (L+R), you're going to get
This is because:
1. The white noise (generated in Logic) comes out of the stereo outputs (1+2)
2. This signal is sent through the amp and picked up by the mic
3. The mic signal goes back in to Logic
4. In order for you to hear the mic signal through headphones, the output of the mic signal has to come out through the stereo outputs (1+2)
- but outputs1+2 are going back into the amp, through the mic again, and back into Logic!
There's two solutions I can think of (there may be more - Rounik and Ski might chip in)
Use an audio interface with multiple outputs.
Record 20 minutes of white noise onto a track in Logic. Bounce the track as a Wav file then burn it onto CD. Cable a CD player into the amp and play the white noise that way.
This gets rid of the loop - the signal path now goes
1. CD player plays white noise into amp
2. output of amp goes into mic
3. mic goes into Logic
4. mic signal comes out of Logic output 1+2 into your headphones.
It doesn't need to be a cd player - you can bounce an MP3 and use your ipod instead - whatever, as long as the source of the white noise isn't Logic.
Hope that helps!