From nfournier@inria.fr Tue Mar 01 12:22:23 1994
Path: ashpoly!bigsur!pacrim!krgate!eunha!inria!nfournier
From: nfournier@inria.fr (Nadine Fournier)
Newsgroups: comp.dsp
Subject: Discussion: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Mar01.122223.7858@inria.fr>
Date: Tue, 01 Mar 1994 12:22:23 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.
Nova Hart's sustained notes have a standard deviation of less than 0.8 cents over 4-second held notes.

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

-- 
Nadine Fournier | nfournier@inria.fr
PGP Key fingerprint: 1328 B812 6947 E126
"Keep the channels open."

From atanaka@purdue.edu Thu Mar 03 07:29:23 1994
Path: ashpoly!bigsur!pacrim!jpgate!kamome!purdue!atanaka
From: atanaka@purdue.edu (Anja Tanaka)
Newsgroups: comp.dsp
Subject: Re: Discussion: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Mar03.072923.9503@purdue.edu>
Date: Thu, 03 Mar 1994 07:29:23 GMT
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In article <1994Mar01.122223.7858@inria.fr>, nfournier@inria.fr (Nadine Fournier) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

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

-- 
Anja Tanaka | atanaka@purdue.edu
PGP Key fingerprint: 4C9F 3122 D643 DE7C
"Keep the channels open."

From ctanaka@rwth-aachen.de Thu Mar 03 21:31:23 1994
Path: ashpoly!cascade!brgate!saturno!rwth-aachen!ctanaka
From: ctanaka@rwth-aachen.de (Camila Tanaka)
Newsgroups: comp.dsp
Subject: Re: Discussion: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Mar03.213123.9356@rwth-aachen.de>
Date: Thu, 03 Mar 1994 21:31:23 GMT
References: <1994Mar01.122223.7858@inria.fr> <1994Mar03.072923.9503@purdue.edu>
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In article <1994Mar03.072923.9503@purdue.edu>, atanaka@purdue.edu (Anja Tanaka) writes:
> Look at the EPROM dumps from the TWIN-68 board: there are lookup tables with 16-bit sine values calculated to 6 decimal places.

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

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

From treyes@netcom.com Fri Mar 04 22:05:23 1994
Path: ashpoly!cascade!brgate!saturno!netcom!treyes
From: treyes@netcom.com (Tyler Reyes)
Newsgroups: comp.dsp
Subject: Re: Discussion: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Mar04.220523.7043@netcom.com>
Date: Fri, 04 Mar 1994 22:05:23 GMT
References: <1994Mar01.122223.7858@inria.fr>
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In article <1994Mar01.122223.7858@inria.fr>, nfournier@inria.fr (Nadine Fournier) 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.

Dr. Reiss was a particle physicist, not an acoustic phonetics researcher. 7 sigma is particle physics terminology, not audio engineering.

PGP Public key available via finger or upon request.

-- 
Tyler Reyes
Tape trading list upon request. SASE required for international mail.

From achoi@pipeline.com Sun Mar 06 03:51:23 1994
Path: ashpoly!cascade!transat!ukc!fennimore!pipeline!achoi
From: achoi@pipeline.com (Andrei Choi)
Newsgroups: comp.dsp
Subject: Re: Discussion: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Mar06.035123.7603@pipeline.com>
Date: Sun, 06 Mar 1994 03:51:23 GMT
References: <1994Mar01.122223.7858@inria.fr> <1994Mar03.072923.9503@purdue.edu> <1994Mar03.213123.9356@rwth-aachen.de>
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In article <1994Mar03.213123.9356@rwth-aachen.de>, ctanaka@rwth-aachen.de (Camila Tanaka) writes:
> Any studio tape played back with a varispeed deck and tight tape tension can look artificially stable on an oscilloscope.

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

-- 
Andrei Choi -- The Pipeline Internet Network
"Row 14. No joke."