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- Newsgroups: sci.electronics
- Path: sparky!uunet!think.com!enterpoop.mit.edu!bloom-picayune.mit.edu!athena.mit.edu!cthomas
- From: cthomas@athena.mit.edu (Michael T Ford)
- Subject: Re: Voice modification...how?
- Message-ID: <1993Jan9.221159.9654@athena.mit.edu>
- Sender: news@athena.mit.edu (News system)
- Nntp-Posting-Host: alfredo.mit.edu
- Organization: Massachusetts Institute of Technology
- References: <C0LqHA.JCp@usenet.ucs.indiana.edu>
- Date: Sat, 9 Jan 1993 22:11:59 GMT
- Lines: 16
-
- In article <C0LqHA.JCp@usenet.ucs.indiana.edu> graham@venus.iucf.indiana.edu writes:
- >For some time, I've wanted to build a small "box" that, when spoken into,
- >reproduces my voice as that of a Cylon Raider from the old Battlestar
- >Galactica series.
- >My problem is a simple one.
- >Is the voice actual voice simply "modulated", or is tone mixed with the
- >original voice and then modulated?
-
- One really easy way to do that is take your mic into a 741 op-amp. Then
- have a 555 clocking away at your favorite frequency for a voice. Better yet,
- put a potientiometer in to control the frequency. Now grab an NPN x-sistor.
- Connect the output of the op-amp to the base, the output of the 555 to the
- collector, and then run the emitter to another op-amp. What you end up
- doing is AM'ing the signal from the 555.
-
- Mike WZ0C
-