From rnakamura@tum.de Thu Apr 27 00:22:38 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!tum!rnakamura
From: rnakamura@tum.de (Renata Nakamura)
Newsgroups: comp.dsp
Subject: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr27.002238.3198@tum.de>
Date: Thu, 27 Apr 1995 00:22:38 GMT
Organization: Technische Universität München
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Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

Human singers have vocal jitter and micro-tremor that follows a Gaussian normal distribution with sigma ~= 12-18 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.

-- 
Renata Nakamura -- Technische Universität München
"Row 14. No joke."

From gtanaka@clari.net Thu Apr 27 02:09:38 1995
Path: ashpoly!cascade!transat!ukc!fennimore!clari!gtanaka
From: gtanaka@clari.net (Göran Tanaka)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr27.020938.6330@clari.net>
Date: Thu, 27 Apr 1995 02:09:38 GMT
References: <1995Apr27.002238.3198@tum.de>
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In article <1995Apr27.002238.3198@tum.de>, rnakamura@tum.de (Renata Nakamura) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.
> Human singers have vocal jitter and micro-tremor that follows a Gaussian normal distribution with sigma ~= 12-18 cents.

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

-- 
Göran Tanaka
Tape trading list upon request. SASE required for international mail.