FX8 Weird noise

[serge20261]

I've just updated my firmware,for some reason one of the patches is making a noise that goes from silent and builds to high volume.Ive deleted the patch and started from scratch,the problem is still there.
Ive noticed that its quite till I click on scene 4
This is the youtube :

 

[philipacamaniac]

It's feedback from something.

Some tube-buffered fx loops can feedback on themselves when the signal being fed into the FX return is too hot.

 

[serge20261]

It's feedback from something.

Some tube-buffered fx loops can feedback on themselves when the signal being fed into the FX return is too hot.

Problem is I haven't changed anything apart from new firmware

 

[philipacamaniac]

Post the preset. Does it go away if you bypass all blocks (especially that delay block)?

 

[chris]

Ive noticed that its quite till I click on scene 4

It's a problem with something in Scene 4 most likely. Upload the preset.

 

[serge20261]

It's a problem with something in Scene 4 most likely. Upload the preset.

Hope this works

 

[chris]

Scene 4 changes the Delay block to the Y state. in the Y, it's a tape delay with the Feedback 2 at -100%. you also have Level 2 at 0.0%, but with feedback at 100%, any noise at all will continue to ramp up, exactly like you show in the video.

change the Feedback 2 to 0% and the problem goes away.

 

[serge20261]

Scene 4 changes the Delay block to the Y state. in the Y, it's a tape delay with the Feedback 2 at -100%. you also have Level 2 at 0.0%, but with feedback at 100%, any noise at all will continue to ramp up, exactly like you show in the video.

change the Feedback 2 to 0% and the problem goes away.

Your a legend thank you so much Chris