NODE 183d5681Re: Home Made Telephone Voice Changer
John Deters <jad@dsddhc.com>Tue, 23 Jul 1996 04:07:11 +0800
On Wed, 17 Jul 1996, Jerome Tan wrote:
> Does anyone know how to make a home-made telephone voice changer?
Well, if you've got your sound card in your computer, if you download Speak
Freely (from http://www.fourmilab.ch) and simultaneously turn on LPC-10
compression along with simple compression, I've found my voice comes out
more like Robbie the Robot than John Deters. It's an interesting feature of
the LPC-10 compression that as it removes redundancy from the transmission
that it removes the "human identity" from it as well. There's got to be a
moral to that story somewhere (especially since the NSA developed the LPC-10
algorithm).
John
--
J. Deters "Captain's log, stardate 25970-point-5. I am nailed to the hull."
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NODE ec553747Re: Home Made Telephone Voice Changer
dlv@bwalk.dm.com (Dr.Dimitri Vulis KOTM)Tue, 23 Jul 1996 20:22:42 +0800
John Deters <jad@dsddhc.com> writes:
> On Wed, 17 Jul 1996, Jerome Tan wrote:
>
> > Does anyone know how to make a home-made telephone voice changer?
>
> Well, if you've got your sound card in your computer, if you download Speak
> Freely (from http://www.fourmilab.ch) and simultaneously turn on LPC-10
> compression along with simple compression, I've found my voice comes out
> more like Robbie the Robot than John Deters. It's an interesting feature of
> the LPC-10 compression that as it removes redundancy from the transmission
> that it removes the "human identity" from it as well. There's got to be a
> moral to that story somewhere (especially since the NSA developed the LPC-10
> algorithm).
You can find voicw changers and a lot of other fun toys in the Edge Company
catalog (+1 800 732 9976). They have other electronics, guns, knives, swords,
cross-bows, what have you. No homicidal maniac should be without their
catalog.
It would be an interesting EE project to implement a voice changer in software
using a PC with a sound / phone board.
---
Dr.Dimitri Vulis KOTM
Brighton Beach Boardwalk BBS, Forest Hills, N.Y.: +1-718-261-2013, 14.4Kbps