formant shifting

Hi,

Does anyone know how one would go about changing the formants of a recorded
voice from male to female, so that when it is sped up, it won't sound like
Alvin and the chipmunks? I'm curious because I would like to do some more
vocal overdubbing works in various alternate tunings, and I would like to do
some medium-high voice lines without hiring a mezzo or whatever (plus I hate
the over-vibrato style that typical classical/opera trained singers use).

I have a decent vocal range of about 2 1/2 octaves or so, depending on how
warmed up I am (~e,, to ~b with falsetto), the very top of my falsetto
however I wouldn't want to record because it will sound too thin and tight;
it would be nice to artificially extend it with recording technology to 3 or
even slightly more....

Thanks,
Aaron.

Aaron Krister Johnson wrote:
> Hi,
> > Does anyone know how one would go about changing the formants of a recorded > voice from male to female, so that when it is sped up, it won't sound like > Alvin and the chipmunks? I'm curious because I would like to do some more > vocal overdubbing works in various alternate tunings, and I would like to do > some medium-high voice lines without hiring a mezzo or whatever (plus I hate > the over-vibrato style that typical classical/opera trained singers use). Tricky! It's much easier to start with a female voice because there's less information in low pitched sounds. Also, there's more to the difference between male and female voices than pitch and formants.

> I have a decent vocal range of about 2 1/2 octaves or so, depending on how > warmed up I am (~e,, to ~b with falsetto), the very top of my falsetto > however I wouldn't want to record because it will sound too thin and tight; > it would be nice to artificially extend it with recording technology to 3 or > even slightly more....

What you want, then, is to hold the formants constant when you change the pitch. Don't worry about speeding up. I know Kyma can do this, and I'm sure Csound can, although maybe not in real time. I can go through the documentation if you think that's a promising route. I think analysis/resynthesis is what to search for.

Graham

Melodyne. -C.

At 11:31 AM 7/7/2006, you wrote:
>
>Hi,
>
>Does anyone know how one would go about changing the formants of a recorded
>voice from male to female, so that when it is sped up, it won't sound like
>Alvin and the chipmunks? I'm curious because I would like to do some more
>vocal overdubbing works in various alternate tunings, and I would like to do
>some medium-high voice lines without hiring a mezzo or whatever (plus I hate
>the over-vibrato style that typical classical/opera trained singers use).
>
>I have a decent vocal range of about 2 1/2 octaves or so, depending on how
>warmed up I am (~e,, to ~b with falsetto), the very top of my falsetto
>however I wouldn't want to record because it will sound too thin and tight;
>it would be nice to artificially extend it with recording technology to 3 or
>even slightly more....
>
>Thanks,
>Aaron.

Hi Aaron. There's an app called Composer's Desktop Project (CDP) which has spectral and pitch function suites which would do the specific job of dealing with formants in detail. Takes some time to get familiar but there is support. Look here:-

http://www.bath.ac.uk/~masjpf/CDP/CDP.htm

best

james

----- Original Message -----
From: Carl Lumma
To: MakeMicroMusic@yahoogroups.com
Sent: Saturday, July 08, 2006 6:16 PM
Subject: Re: [MMM] formant shifting

Melodyne. -C.

At 11:31 AM 7/7/2006, you wrote:
>
>Hi,
>
>Does anyone know how one would go about changing the formants of a recorded
>voice from male to female, so that when it is sped up, it won't sound like
>Alvin and the chipmunks? I'm curious because I would like to do some more
>vocal overdubbing works in various alternate tunings, and I would like to do
>some medium-high voice lines without hiring a mezzo or whatever (plus I hate
>the over-vibrato style that typical classical/opera trained singers use).
>
>I have a decent vocal range of about 2 1/2 octaves or so, depending on how
>warmed up I am (~e,, to ~b with falsetto), the very top of my falsetto
>however I wouldn't want to record because it will sound too thin and tight;
>it would be nice to artificially extend it with recording technology to 3 or
>even slightly more....
>
>Thanks,
>Aaron.

__________ NOD32 1.1649 (20060707) Information __________

This message was checked by NOD32 antivirus system.
http://www.eset.com

[Non-text portions of this message have been removed]