Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!usc!apple!malcolm
From: malcolm@Apple.COM (Malcolm Slaney)
Newsgroups: comp.dsp
Subject: Re: speech + noise
Summary: Blind leading Blind
Message-ID: <51239@apple.Apple.COM>
Date: 5 Apr 91 22:02:10 GMT
References: <6003@trantor.harris-atd.com>
Distribution: all
Organization: Apple Computer Inc., Cupertino, CA
Lines: 17

In article laprade@x102a.ess.harris.com (laprade maria 42641) writes:
>My question is am I incorrect to add in white noise, or do I need to
>modify my processing equations. I'm neither a speech nor a signal
>processing type engineer

Ooooh, I love it....the blind (somebody who doesn't understand the problem)
leading the blind (a neural net).

Nothing personal......but wouldn't it make more sense to do NN research with 
a problem that you understand?

If not, check out Ron Cole's paper in the Albuquerque ICASSP (1990).
He compares several different representations as input to a NN.  Your data
isn't necessarily bad, but your representations are't robust in the
face of noise.  Also check out Melvyn Hunt's paper in the NY ICASSP.

								Malcolm