Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!mentor.cc.purdue.edu!aic
From: aic@mentor.cc.purdue.edu (George A. Basar)
Newsgroups: sci.electronics
Subject: Audio Spectrum Analyzer
Keywords: make one,homebrew,spectrum analyzer
Message-ID: <3906@mentor.cc.purdue.edu>
Date: 7 Sep 89 00:53:34 GMT
Organization: Purdue University
Lines: 14


  Occasionally, I work with bands running sound.  One of the nicer
pieces of equipment to own is an audio spectrum analyzer, along with a pink
noise source.
  I'd like to build one of these beasties(the SA, not the pink noise source)
to interface with a PC (C64 to be precise).  I've had a few ideas on how
to go about this but I would appreciate any pointers to information on this
subject.
  Ultimately, it should be 31-band, starting at 20Hz and ending at 20KHz,
something like a sweepable notch filter connected to an A/D converter.
  Any help/comments is/are appreciated.
  Thanks in advance

					George A. Basar