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Re: EDP DC offset

Thanks, Matthias, for clarifying this.  You know, a block diagram would be
helpful.  Perhaps with a flowchart of how the EDP decides to sync to what.
Ok, I won't beg.  But I can offer you half a Mars bar.

Dennis Leas

-----Original Message-----
From: Matthias Grob <matthias@grob.org>
To: Loopers-Delight@annihilist.com <Loopers-Delight@annihilist.com>
Date: Saturday, May 08, 1999 10:10 PM
Subject: Re: EDP DC offset

>>In this context, DC offset refers to a bias presented to the
>>analog-to-digital converter (ADC).  For audio input, you'd expect a
>>value of zero; i.e., the signal should have as many positive excursions 
>>negative.  However, if you present audio "riding on" a DC voltage, then
>>ADC will produce a non-zero average.  It is unrelated to using two EDPs
>The ADC offset is corrected automatically when the unit is in Reset.
>What we adjust with said procedure is the offset of the VCA controlling 
>input. If its dejusted, you get a click when switching Overdub or some
>other functions.