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Re: Input/Feedback LED's level question Last time I try to get help with this. Please help!



Ignoring the fact that the feedback led is orange while recording is all well and good.   The problem is it is equally as orange when the recorded loop plays back (ie what the feedback led is showing while recording seems to be real in that the feedback led glows yellow/orange as it did while recording.)  I do believe the initial led reading of the feedback led is the level the loop is receiving.
Let me try in steps
1) Set input level good green
2) Record
3) Input level led green, green, green, Feedback level led yellow/orange yellow/orange
4) Stop record. Feedback led yellow/orange yellow/orange
5) overdub, multiply, or insert
6) Input led green green green, Feedback led orange, orange, orange
7) Stop overdub multiply or insert. feedback led orange orange orange
 
To keep from immediately topping out the headroom of the loop I have to set the input green level to almost nonexistent.  As I said before, I can get a hot green led response from the feedback led with the input led not even lighting at all during record!!!
-------------- Original message --------------
From: andy butler <akbutler@tiscali.co.uk>

>
>
> weeksville@comcast.net wrote:
> > Before I send my echoplex in to British Audio to be checked out I want
> > to ask this question one more time. Ever since I upgraded to the Loop IV
> > software the input/feedback led's do not seem to work the same.
>
> It was already explained to you that the feedback LED could be ignored during
> Record.
>
> Not that you don't actually have a problem, just hard to diagnose with the
> information you give.
> The more info you give, the more help you get :-)
>
> > If I
> > set the input level using the input led as my guide (ie get a good solid
> > green input signal), the feedback led will read orange with the
> > recording of the very first loop.
>
> What counts is how the feedback LED reads on the *playback* of the loop.
>
>
> What also counts is the incidence of clipping, which you could test for.
> How does the input LED reading compare with the onset of clipping when listening
> to the dry output of the edp?
>
>
> > This happens with all input signals
> > drums, bass, guitar, and keyboards (not just high frequency which I
> > remember causing a little problem like this but not to this extreme.) I
> > have to turn the input led level down to a level that barely lights it
> > green to get a level on the feedback led that will allow me to overdub
> > without imediately running out of headroom in the loop.
>
> So, you're actually getting distortion?
>
>
>
> Well, I can imagine that changing the software could alter the dis play, (though
> I don't remember that being a feature,) but not that it would alter the input
> sensitivity, as that's all done in hardware.
>
> The other possibility is that you're picking up HF interference somehow, and
> that's messing with the EDP response.
>
>
> andy butler
> ps
>
>
> I'm forwarding this mail to Matthias, the edp inventor.
>
>
>