Subject: Re: [linux-audio-user] Pitch-deducer software
From: paul (paul_AT_pksings.com)
Date: Sat Mar 23 2002 - 19:33:58 EET
Actually the vocal eliminator machine compares left to right and puts
them out of polarity and then merges them into mono, that cancels
anything that is directly dead center, which is usually the lead vocals.
Often keyboards also. It then plays the mono track out both stereo
sides. I was able to accomplish the same by wiring a stereo phono
cartridge with one channel out of sync with the other and then running
it into a mono channel on a mixer.
This probably do-able via software but I have never tried it.
PK
On Fri, 2002-03-22 at 06:30, M. Edward (Ed) Borasky wrote:
> On Fri, 22 Mar 2002, Joseph Zitt wrote:
>
> > This is a long shot, but... is there software for linux that would
> > "listen" to a WAV file of an unaccompanied vocal line and log the
> > pitches or frequencies being used and when they happen?
>
> On a related note, there is a machine called IIRC a "vocal eliminator"
> that lets you use (almost) any standard solo recording as a karaoke
> disc. That is, by some magic, it filters out the singer and leaves the
> accompaniment. This sounds non-trivial to me in a DSP sense, and I've
> held off buying one for that reason. Do any of you folks know of
> algorithms to do this? I've been assuming they just look at "location"
> on a left-right continuum, "find" the vocalist, and punch as small a
> hole as possible at that point.
> --
> M. Edward Borasky
>
> znmeb_AT_borasky-research.net
> http://www.borasky-research.net/HarryIannis.htm
>
> Q. How do you tell when a pineapple is ready to eat?
> A. It picks up its knife and fork.
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