Hi all,

just wanted to make this post for everyone out here that uses Ableton Live, I was mixing the noise floor in a track when suddenly I noticed something strange happening... When the audio track I had was set as an IN in the routing (input channel for drums to make a bus group), the utility plugin ''synthesizes'' a square wave (that disappears when I press the AUTO button on the track)

To explain it clearly, I made a new project and created a blank audio track

In the attached pics you can clearly see that in the IN routing the spectrogram shows a square wave, while on the other routing option (the standard track routing) this problem doesn't happen.

Anybody knows if it's Ableton faults or I'm doing something wrong? That, is, weeeeird!!

Cheers!!

 

its noise from your audioinput (and you gain this noise +210 db)

when you are using audiotracks for grouping set audioinput of these tracks to "no input", otherwise the chosen audioinput (and its signal, even noise) will go into this group

 

ganjara is spot on.

What you are doing:

http://www.youtube.com/watch?v=D3jhufV9GMM

What you should be doing:

http://www.youtube.com/watch?v=u_dl4bCDcNU

Also, read this:
http://en.wikipedia.org/wiki/Feedback

 

What GanjaRa said

@ fraifikmushi

LOOOOOOLLLLLLL

 

LoL, the video reference is spot on, you got me!

But it's actually a problem in the final product too, because here it's solo'ed (so I had to boost it +210 dB to make it appear), but in my mix I could hear it when working on the noise floor, at about 80/90 dB, so with further processing, compression, SNR reduction, etc... it would become much more evident... *yes*

EDIT: tried what ganjara said and the problem is now solved!! Thanks!!!

 

Problem can be solved maybe. For example, such things like audio analyzers etc I make "dry" (0% of processing, so you can measure/meter/analyze your sound, but there will be no distortions at all, because of processing is off). Analyzers and almost all tools produce some distortions and noise (about -180 dB, or higher or lower, depends on algorithms. I think it depends on "double precision", "32 bit", "32 bit float", "64 bit float" etc.).