[sdiy] Has anyone built a voice pitch tracker?

[Dan]

----- Original Message -----
From: "Ingo Debus" <debus at cityweb.de>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, November 16, 2002 12:51 PM
Subject: Re: [sdiy] Has anyone built a voice pitch tracker?

> I tried it with voice too, of course. But it's very difficult to
> control the pitch of the own voice when you hear something with a
> pitch that relates to the voice's pitch but is at a different pitch.
> Ever tried to sing through a pitch shifter? It's definitely easier to
> control a synth with a conventional interface (like a keyboard) than
> with the voice.
>
> AFAIK these "voice intonation correctors" (whatever they are called -
> think Cher effect) only work well when the singer does *not* hear the
> modified voice signal while singing.

Please allow me to respectfully disagree. It´s tested, it works and it
doesn´t disturb me at all by singing. My purpose is to build this thing for
live singing ( don´t forget that I want it to transpose one octave up only,
so it´s not that difficult to get used to it )
I even don´t need the "pitch detector" as such. My only artifacts are in the
very low zone, where I can´t get the wave to be symetrical. I suppose
getting deeper into allpass filtering will do the trick for me.
There are lots of other problems which haven´t anything to do with the pitch
transposing as such, but I hope to solve them all. (most disturbing: the
transposed result sounds more like "head voice" than a "breast voice"...I
should get deeper into that) If someone is interested to hear how it sounds,
I can put some mp3s on the web somewhere.
Best--
Dan