Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!uunet!vicorp!ron
From: ron@vicorp.com (Ron Peterson)
Newsgroups: comp.music
Subject: Re: voice synthesizer
Message-ID: <1991Apr25.210916.348@vicorp.com>
Date: 25 Apr 91 21:09:16 GMT
References: <71181@eerie.acsu.Buffalo.EDU> <1991Apr18.230956.20033@vicorp.com> <33454@mimsy.umd.edu>
Reply-To: ron@sunspark.UUCP (Ron Peterson)
Organization: V. I. Corporation, Amherst, Massachusetts
Lines: 22

In article <33454@mimsy.umd.edu> ogata@leviathan.cs.umd.edu (Jefferson Ogata) writes:
>In article <1991Apr18.230956.20033@vicorp.com> ron@vicorp.com (Ron Peterson) writes:
>|> In article <71181@eerie.acsu.Buffalo.EDU> v092pxca@ubvmsb.cc.buffalo.edu writes:
>|> >Does anyone know if anyone is working on building a voice synthesizer?  This
>|> In the cyberpunk novel "Little Hereos" a device called a VoxBox is used
>|> to create the lead and backing vocals for synthetically created music.
>|> It is described as requiring a real human voice as input which is then
>|> modified to give it zing.  Perhaps there is work of this nature going
>|> on somewhere.  I know that Laurie Anderson has a device that she uses
>|> to make her voice sound male.  Anyone know the details of how it works?
>
>I believe that this is just a pitch transposer coupled with a slightly
>modified vocal inflection. I know that I've gotten similar effects
>messing with pitch transposers, although my voice *already* sounds
>male, so...
How do you transpose a voice in pitch without losing its natural sound?
I've heard of pitch transposers that convert the input signal to a
square wave and then multiply or divide it to get a fundamental pitch
that is an octave higher or lower, but this destroys all of the 
information contained in the shape of the waves.  Is there another
way to do it?  And how do you get sub-octave transposition? 
ron@vicorp.com or uunet!vicorp!ron