Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

From: Steven Vachon <prometh@...>
To: gsp-2101@yahoogroups.com
Sent: Tue, June 15, 2010 9:55:36 PM
Subject: [gsp-2101] Mixer causing OVERLOAD?!

  
Here is a screenshot of the algorithm that I'm working on.
	1. I'm using a 4x3 instead of a 4x2 because it uses less CPU
	2. My two mono signals (PEQ3 and 2x1a) are panned to the centre
	3. Everything is 100% volume
The problem I'm having is that the "overload" LED lights up, the volume seems to have tripled and the sound is clipping.

I've tried:
	1. using a 4x2 instead of a 4x3
	2. using outputs 1 and 2 (instead of 3 and 4) on the 4x3
	3. lowing the inputs on all my mixers to 50% each
	4. turning off reverb
	5. turning off mono delays
In other algorithms that I've successfully created, I connected my two mono signals (PEQ3 and 2x1a) to four inputs on a 6x2 mixer.

Have I done something incorrectly?

>
> Double check that you dont have a loop in the algorithm causing feedback. 
> 
> 
> 
> ________________________________
> From: Steven Vachon <prometh@...>
> To: gsp-2101@yahoogroups.com
> Sent: Tue, June 15, 2010 9:55:36 PM
> Subject: [gsp-2101] Mixer causing OVERLOAD?!
> 
> Â  
> Here is a screenshot of the algorithm that I'm working on.
> 	1. I'm using a 4x3 instead of a 4x2 because it uses less CPU
> 	2. My two mono signals (PEQ3 and 2x1a) are panned to the centre
> 	3. Everything is 100% volume
> The problem I'm having is that the "overload" LED lights up, the volume seems to have tripled and the sound is clipping.
> 
> I've tried:
> 	1. using a 4x2 instead of a 4x3
> 	2. using outputs 1 and 2 (instead of 3 and 4) on the 4x3
> 	3. lowing the inputs on all my mixers to 50% each
> 	4. turning off reverb
> 	5. turning off mono delays
> In other algorithms that I've successfully created, I connected my two mono signals (PEQ3 and 2x1a) to four inputs on a 6x2 mixer.
> 
> Have I done something incorrectly?
>

>
> No loops. It's set up exactly how my diagram outlines it
> 
> --- In gsp-2101@yahoogroups.com, C Mead <stratburst@> wrote:
> >
> > Double check that you dont have a loop in the algorithm causing feedback. 
> > 
> > 
> > 
> > ________________________________
> > From: Steven Vachon <prometh@>
> > To: gsp-2101@yahoogroups.com
> > Sent: Tue, June 15, 2010 9:55:36 PM
> > Subject: [gsp-2101] Mixer causing OVERLOAD?!
> > 
> > Â  
> > Here is a screenshot of the algorithm that I'm working on.
> > 	1. I'm using a 4x3 instead of a 4x2 because it uses less CPU
> > 	2. My two mono signals (PEQ3 and 2x1a) are panned to the centre
> > 	3. Everything is 100% volume
> > The problem I'm having is that the "overload" LED lights up, the volume seems to have tripled and the sound is clipping.
> > 
> > I've tried:
> > 	1. using a 4x2 instead of a 4x3
> > 	2. using outputs 1 and 2 (instead of 3 and 4) on the 4x3
> > 	3. lowing the inputs on all my mixers to 50% each
> > 	4. turning off reverb
> > 	5. turning off mono delays
> > In other algorithms that I've successfully created, I connected my two mono signals (PEQ3 and 2x1a) to four inputs on a 6x2 mixer.
> > 
> > Have I done something incorrectly?
> >
>

>
> No loops. It's set up exactly how my diagram outlines it
> 
> --- In gsp-2101@yahoogroups.com, C Mead <stratburst@> wrote:
> >
> > Double check that you dont have a loop in the algorithm causing feedback. 
> > 
> > 
> > 
> > ________________________________
> > From: Steven Vachon <prometh@>
> > To: gsp-2101@yahoogroups.com
> > Sent: Tue, June 15, 2010 9:55:36 PM
> > Subject: [gsp-2101] Mixer causing OVERLOAD?!
> > 
> > Â  
> > Here is a screenshot of the algorithm that I'm working on.
> > 	1. I'm using a 4x3 instead of a 4x2 because it uses less CPU
> > 	2. My two mono signals (PEQ3 and 2x1a) are panned to the centre
> > 	3. Everything is 100% volume
> > The problem I'm having is that the "overload" LED lights up, the volume seems to have tripled and the sound is clipping.
> > 
> > I've tried:
> > 	1. using a 4x2 instead of a 4x3
> > 	2. using outputs 1 and 2 (instead of 3 and 4) on the 4x3
> > 	3. lowing the inputs on all my mixers to 50% each
> > 	4. turning off reverb
> > 	5. turning off mono delays
> > In other algorithms that I've successfully created, I connected my two mono signals (PEQ3 and 2x1a) to four inputs on a 6x2 mixer.
> > 
> > Have I done something incorrectly?
> >
>

>
> 4 into 2!?
> 
> If it's a summing algorythm without a compensation factor, I'd try the obvious first. Try 25%.
> 
> If that doesn't work, you need to do a system analysis method and pin point the exact stage in the route where the distortion is. That may require setting up an experimental patch or two to go through the stages to illiminate each stage at a time.
> 
> Good luck.
> 
> norman.
> 
> 
> 
> 
> 
> 
> ________________________________
> From: Steven Vachon <prometh@...>
> To: gsp-2101@yahoogroups.com
> Sent: Fri, June 18, 2010 11:24:28 AM
> Subject: [gsp-2101] Re: Mixer causing OVERLOAD?!
> 
>   
> Anybody??
> 
> --- In gsp-2101@yahoogroups.com, "Steven Vachon" <prometh@> wrote:
> >
> > No loops. It's set up exactly how my diagram outlines it
> > 
> > --- In gsp-2101@yahoogroups.com, C Mead <stratburst@> wrote:
> > >
> > > Double check that you dont have a loop in the algorithm causing feedback. 
> > > 
> > > 
> > > 
> > > ________________________________
> > > From: Steven Vachon <prometh@>
> > > To: gsp-2101@yahoogroups.com
> > > Sent: Tue, June 15, 2010 9:55:36 PM
> > > Subject: [gsp-2101] Mixer causing OVERLOAD?!
> > > 
> > > Â  
> > > Here is a screenshot of the algorithm that I'm working on.
> > > 	1. I'm using a 4x3 instead of a 4x2 because it uses less CPU
> > > 	2. My two mono signals (PEQ3 and 2x1a) are panned to the centre
> > > 	3. Everything is 100% volume
> > > The problem I'm having is that the "overload" LED lights up, the volume seems to have tripled and the sound is clipping.
> > > 
> > > I've tried:
> > > 	1. using a 4x2 instead of a 4x3
> > > 	2. using outputs 1 and 2 (instead of 3 and 4) on the 4x3
> > > 	3. lowing the inputs on all my mixers to 50% each
> > > 	4. turning off reverb
> > > 	5. turning off mono delays
> > > In other algorithms that I've successfully created, I connected my two mono signals (PEQ3 and 2x1a) to four inputs on a 6x2 mixer.
> > > 
> > > Have I done something incorrectly?
> > >
> >
>

>
> 4 into 2!?
> 
> If it's a summing algorythm without a compensation factor, I'd try the obvious first. Try 25%.
> 
> If that doesn't work, you need to do a system analysis method and pin point the exact stage in the route where the distortion is. That may require setting up an experimental patch or two to go through the stages to illiminate each stage at a time.
> 
> Good luck.
> 
> norman.
> 
> 
> 
> 
> 
> 
> ________________________________
> From: Steven Vachon <prometh@...>
> To: gsp-2101@yahoogroups.com
> Sent: Fri, June 18, 2010 11:24:28 AM
> Subject: [gsp-2101] Re: Mixer causing OVERLOAD?!
> 
> 
> Anybody??
> 
> --- In gsp-2101@yahoogroups.com, "Steven Vachon" <prometh@> wrote:
> >
> > No loops. It's set up exactly how my diagram outlines it
> > 
> > --- In gsp-2101@yahoogroups.com, C Mead <stratburst@> wrote:
> > >
> > > Double check that you dont have a loop in the algorithm causing feedback. 
> > > 
> > > 
> > > 
> > > ________________________________
> > > From: Steven Vachon <prometh@>
> > > To: gsp-2101@yahoogroups.com
> > > Sent: Tue, June 15, 2010 9:55:36 PM
> > > Subject: [gsp-2101] Mixer causing OVERLOAD?!
> > > 
> > > Â 
> > > Here is a screenshot of the algorithm that I'm working on.
> > > 1. I'm using a 4x3 instead of a 4x2 because it uses less CPU
> > > 2. My two mono signals (PEQ3 and 2x1a) are panned to the centre
> > > 3. Everything is 100% volume
> > > The problem I'm having is that the "overload" LED lights up, the volume seems to have tripled and the sound is clipping.
> > > 
> > > I've tried:
> > > 1. using a 4x2 instead of a 4x3
> > > 2. using outputs 1 and 2 (instead of 3 and 4) on the 4x3
> > > 3. lowing the inputs on all my mixers to 50% each
> > > 4. turning off reverb
> > > 5. turning off mono delays
> > > In other algorithms that I've successfully created, I connected my two mono signals (PEQ3 and 2x1a) to four inputs on a 6x2 mixer.
> > > 
> > > Have I done something incorrectly?
> > >
> >
>