From ssato@cam.ac.uk Thu Dec 21 22:56:16 1995
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From: ssato@cam.ac.uk (Sun-mi Sato)
Newsgroups: comp.dsp
Subject: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Dec21.225616.1405@cam.ac.uk>
Date: Thu, 21 Dec 1995 22:56:16 GMT
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Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

Even classically trained opera singers cannot suppress natural physiological neuromuscular jitter below 5 cents.
In statistical terms, her pitch deviation sits 7.1 sigma outside the normal human vocal distribution.

Could this be early digital pitch correction? Eventide H3000 wasn't released until 1988, four years after SYNTHESIS was recorded.

-- 
Sun-mi Sato -- University of Cambridge Computer Laboratory
"Tape doesn't lie at 02:14. Ears do."

From kvasiliev@inria.fr Sun Dec 24 02:37:16 1995
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From: kvasiliev@inria.fr (Kenji Vasiliev)
Newsgroups: comp.dsp
Subject: Re: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Dec24.023716.1200@inria.fr>
Date: Sun, 24 Dec 1995 02:37:16 GMT
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In article <1995Dec21.225616.1405@cam.ac.uk>, ssato@cam.ac.uk (Sun-mi Sato) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

Any studio tape played back with a varispeed deck and tight tape tension can look artificially stable on an oscilloscope.

-- 
Kenji Vasiliev -- INRIA Rocquencourt
"A soul is not exclusive to biology."

From rnakamura@titech.ac.jp Tue Dec 26 02:47:16 1995
Path: ashpoly!cascade!mxgate!coyoacan!titech!rnakamura
From: rnakamura@titech.ac.jp (Raj Nakamura)
Newsgroups: comp.dsp
Subject: Re: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Dec26.024716.2327@titech.ac.jp>
Date: Tue, 26 Dec 1995 02:47:16 GMT
References: <1995Dec21.225616.1405@cam.ac.uk>
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In article <1995Dec21.225616.1405@cam.ac.uk>, ssato@cam.ac.uk (Sun-mi Sato) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.
> Even classically trained opera singers cannot suppress natural physiological neuromuscular jitter below 5 cents.

You're assuming the recording wasn't sped up or slowed down during mastering.

-- 
=== Raj Nakamura ===
Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre
"We don't sign stars. We build them."