[AG-TECH] XAP 800

[Rick Stevens]

I think this is the right idea..

On Mon, 17 Dec 2001, Ivan R. Judson wrote:

> 
> I think the goal of an audio configuration document needs to be high-enough
> level to capture the "intent" but not the "implementation".
> 
> This would make the document clear enough to be a recipe for configuring
> audio with different equipment.
> 
> Thoughts?
> 
> --Ivan
> 
> > -----Original Message-----
> > From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov]On
> > Behalf Of Mustafa Varank
> > Sent: Monday, December 17, 2001 7:11 AM
> > To: Allan Spale
> > Cc: ag-tech at mcs.anl.gov
> > Subject: Re: [AG-TECH] XAP 800
> >
> >
> > Allan,
> > Thank you for the advices but XAP 800 does look different. There are
> > processors ( no sub?) on XAP800 and you should set "EC Reference and PA"
> > differently. Even i tried to set it, it did not work...I am doing
> > something
> > wrong but i could not find...
> > Could you please tell me also where did you put speakers on your sample
> > matrix picture?
> > I will be waiting to see the updated web site...
> > Thanks,
> > Mustafa
> >
> > At 03:26 PM 12/16/2001 -0600, you wrote:
> > >Mustafa,
> > >
> > >I have been working on creating a more up-to-date Gentner configuration
> > >document, so I will attach an image from the document that will
> > eventually
> > >appear in the AGDP.
> > >
> > >I am not sure how ifferent the XAP 800 is from an AP 400, but I would
> > >imagine that the echo cancellation should be similar.
> > >
> > >In the matrix, notice that Output D is labeled "Ghost Output".  This
> > >output, which should have nothing connected to it physically,
> > will be used
> > >in echo cancellation.  This is demonstrated by looking at the bottom of
> > >the image where you will select which output to serve as echo
> > >cancellation.
> > >
> > >You want to echo cancel anything that would come out of your speakers so
> > >that the Gentner does not think that this is regular audio going into the
> > >mics (or something like that...I am not a complete expert on this audio
> > >stuff).  Specifically, this would be sound from your telco and audio from
> > >the AG.  The AG sound should be entering an input, and the sound from the
> > >telco should be "Telco in".
> > >
> > >Create a crosspoint on the "Ghost Output" and the AG audio in
> > row (RX from
> > >AG) and the "Telco In" row.
> > >
> > >In the "Echo Cancellation Setup", select the output channel that
> > >corresponds to the output designated as the "Ghost Output".  Please note
> > >that the scenario described above is for the net-telco preset (preset 1).
> > >For preset 2 (concerning the "Ghost Output" only and not the other mics,
> > >inputs, outputs, an stuff), only have the telco crosspoint set in the
> > >"Ghost Ouput" column.  For preset 3, only have the RX from AG
> > (or whatever
> > >you named that input that receives audio from the AG) crosspoint set in
> > >the "Ghost Output" column.
> > >
> > >Also as far as general guidelines, make sure that your gain is
> > not set too
> > >high on the mics or this will cause echo.  Aditionally, make sure that
> > >your mics are not too close to the speakers or else you may have echo
> > >problems.
> > >
> > >Best of luck in figuring this problem out.
> > >
> > >
> > >Allan
> > >EVL at UIC
> > >node-op
> > >
> > >
> > >On Sun, 16 Dec 2001, Mustafa Varank wrote:
> > >
> > > > Hello,
> > > > Can anybody send me some suggestions about how to set echo
> > cancellation on
> > > > XAP 800? I am having hard time to figure it out. And if you
> > can send it
> > > > today or  early monday morning that would be great...
> > > > Thanks
> > > >
> >
> 
>