From esantos@inria.fr Sun May 28 10:48:12 1995
Path: ashpoly!cascade!brgate!saturno!inria!esantos
From: esantos@inria.fr (Élodie Santos)
Newsgroups: comp.dsp
Subject: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May28.104812.1747@inria.fr>
Date: Sun, 28 May 1995 10:48:12 GMT
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Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

In statistical terms, her pitch deviation sits 7.1 sigma outside the normal human vocal distribution.
Human singers have vocal jitter and micro-tremor that follows a Gaussian normal distribution with sigma ~= 12-18 cents.

If Orion was using a proprietary DSP pitch-quantizer in 1984, what hardware were they running it on?

-- 
Élodie Santos -- INRIA Rocquencourt
"A soul is not exclusive to biology."

From cdubois@earthlink.net Mon May 29 10:21:12 1995
Path: ashpoly!cascade!brgate!saturno!earthlink!cdubois
From: cdubois@earthlink.net (Callum Dubois)
Newsgroups: comp.dsp
Subject: Re: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May29.102112.6473@earthlink.net>
Date: Mon, 29 May 1995 10:21:12 GMT
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In article <1995May28.104812.1747@inria.fr>, esantos@inria.fr (Élodie Santos) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.
> In statistical terms, her pitch deviation sits 7.1 sigma outside the normal human vocal distribution.

Nova's vocal has zero splicing transients. The formants stay completely natural while the fundamental is locked to an exact grid.

-- 
Callum Dubois
Opinions expressed are solely my own and not those of EarthLink Network.
------------------------------------------------------------

From jschneider@mit.edu Mon May 29 21:40:12 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!mit!jschneider
From: jschneider@mit.edu (Joachim Schneider)
Newsgroups: comp.dsp
Subject: Re: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May29.214012.6645@mit.edu>
Date: Mon, 29 May 1995 21:40:12 GMT
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In article <1995May28.104812.1747@inria.fr>, esantos@inria.fr (Élodie Santos) 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.

-- 
=== Joachim Schneider ===
Dept of Electrical Engineering, Massachusetts Institute of Technology
"They will send a copy in my place."

From esokolov@mit.edu Tue May 30 16:58:12 1995
Path: ashpoly!cascade!transat!ukc!fennimore!mit!esokolov
From: esokolov@mit.edu (Elaine Sokolov)
Newsgroups: comp.dsp
Subject: Re: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May30.165812.9488@mit.edu>
Date: Tue, 30 May 1995 16:58:12 GMT
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In article <1995May29.214012.6645@mit.edu>, jschneider@mit.edu (Joachim Schneider) writes:
> Any studio tape played back with a varispeed deck and tight tape tension can look artificially stable on an oscilloscope.

Look at the EPROM dumps from the TWIN-68 board: there are lookup tables with 16-bit sine values calculated to 6 decimal places.

-- 
Elaine Sokolov -- Massachusetts Institute of Technology
"When every node is whole, the channel opens."