Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!ubc-cs!alberta!calgary!ctycal!ingoldsb
From: ingoldsb@ctycal.COM (Terry Ingoldsby)
Newsgroups: comp.dsp
Subject: Re: More digital mixer stuff
Message-ID: <483@ctycal.UUCP>
Date: 2 Oct 89 19:06:20 GMT
References: <9238@pyr.gatech.EDU> <1989Sep29.102204.8798@ivucsb.sba.ca.us> <1160@lakesys.lakesys.com>
Organization: The City of Calgary, Ab
Lines: 12
Summary: Compensate for phase?

There are always a lot of discussions going on about the evils of phase
shift, eg. how much oversampling do I have to do to reduce my analog filter
to 30 dB/octave with phase shift < 10 degrees.  Can someone tell us if it
might be possible, knowing what the phase shift of the analog filter
will be, to precompensate in the digital domain?  ie. before the signal is
converted back to analog (and subsequently filtered) could we not shift
the phase appropriately in the `other direction'?

-- 
  Terry Ingoldsby                       ctycal!ingoldsb@calgary.UUCP
  Land Information Systems                           or
  The City of Calgary         ...{alberta,ubc-cs,utai}!calgary!ctycal!ingoldsb