Newsgroups: comp.speech
Path: pavo.csi.cam.ac.uk!doc.ic.ac.uk!pipex!uunet!mcsun!dxcern!tifrvax.tifr.res.in!krish
From: krish@tifrvax.tifr.res.in
Subject: RE: noisy speech signals
Message-ID: <2OCT93.19461133@tifrvax.tifr.res.in>
Sender: news@dxcern.cern.ch (USENET News System)
Organization: MIT PLASMA FUSION CENTER
References: <27o9jk$b4q@manuel.anu.edu.au> <27qnvo$nih@male.EBay.Sun.COM>
Date: Sat, 2 Oct 1993 19:46:11 GMT
Lines: 11

Hi,
 I was also under the same impression. You are perfectly right that
the machine can't tell the difference between combining the signals
in the computer or the mechanical additive effect. However the speaker
himself changes his speaking style (LOMBARD speech). In other words
when a speaker speaks to a machine in very noisy environment there
is a lot of stress introduced in speech production - therefore a
new acoustic signature. I am told the speech signal itself looks
quite different.
krish
krish@tifrvax.tifr.res.in
