Feedback sound ...

[Samy]

I want to find an effect to produce a feedback sound, is there anything around here ?

Thanks

[PenPen]

This has been discussed several times. Do a search for something like "feedbacker" and see what you find.

[Mark Hammer]

I want to find an effect to produce a feedback sound, is there anything around here ?

Thanks

Real feedback, or something that sounds like feedback, even at low volumes?

[petemoore]

  point the mic in a PA speaker..lol
  Turn the guitar amp up, add reverb, distortion.
  Use a semi-hollow body guitar.
  Clamp a little speaker running off a little amp sourcing your guitar output, to the headstock of your guitar, adjust volume/eq.
  Build a reverse pickup string driver...can't even think of the name...'feedbacker'? I don't think you even have to hack your guitar up.
  They sell em'...some kind of add on or pickup replacement thingy, don't know if they're active....but you install a 'string driver'...IIRC some kind of magnet that 'servos' your string.
  Pin the headstock of your electric guitar to the speaker cabinet at a 45 degree or other angle, hit a note. The cabinet must be vibrating sufficiently for this to cause infinite sustain via direct mechanical feedback.

[Samy]

I want to find an effect to produce a feedback sound, is there anything around here ?

Thanks

Real feedback, or something that sounds like feedback, even at low volumes?

Something that sounds like a feedback.
To get real feedback i know how to get it, but thanks for the tips anyway ! 

I found the Total Sonic Annihilation, i´ll give it a try but i´m looking for some more alternatives to compare.

[Meanderthal]

 Just build an oscillator and filter out a little treble...

[Harry]

There was a post in the past about this idea. Certain circuits (distortion/booster?) that are bent using a feedback line from the output to the input cause strange oscillations with the volume and tone controls of the guitar actually controlling the volume or even pitch of the oscillation!

[aron]

Here's the Boss version:

http://filters.muziq.be/model/boss/compact/df2