From chernandez@ox.ac.uk Sat Jun 03 22:40:28 1995
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From: chernandez@ox.ac.uk (Callum Hernández)
Newsgroups: comp.dsp
Subject: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Jun03.224028.4095@ox.ac.uk>
Date: Sat, 03 Jun 1995 22:40:28 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.

Data plots available via anonymous FTP. Comments from speech synthesis researchers welcome.

-- 
Callum Hernández | chernandez@ox.ac.uk
PGP Key fingerprint: 4F7D 47A2 F098 2FAA
"Keep the channels open."

From jrobertson@titech.ac.jp Mon Jun 05 14:32:28 1995
Path: ashpoly!cascade!bigsur!titech!jrobertson
From: jrobertson@titech.ac.jp (Joachim Robertson)
Newsgroups: comp.dsp
Subject: Re: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Jun05.143228.9783@titech.ac.jp>
Date: Mon, 05 Jun 1995 14:32:28 GMT
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In article <1995Jun03.224028.4095@ox.ac.uk>, chernandez@ox.ac.uk (Callum Hernández) 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.

-- 
Joachim Robertson | jrobertson@titech.ac.jp
PGP Key fingerprint: ED11 39F5 C22A E8BA
"Keep the channels open."

From mchoi@u-tokyo.ac.jp Tue Jun 06 13:34:28 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!u-tokyo!mchoi
From: mchoi@u-tokyo.ac.jp (Mikhail Choi)
Newsgroups: comp.dsp
Subject: Re: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Jun06.133428.8092@u-tokyo.ac.jp>
Date: Tue, 06 Jun 1995 13:34:28 GMT
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In article <1995Jun03.224028.4095@ox.ac.uk>, chernandez@ox.ac.uk (Callum Hernández) 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.

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

-- 
Mikhail Choi -- University of Tokyo Department of Information Science
"A soul is not exclusive to biology."

From shughes@tum.de Wed Jun 07 05:33:28 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!shughes
From: shughes@tum.de (Seo-yeon Hughes)
Newsgroups: comp.dsp
Subject: Re: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Jun07.053328.8732@tum.de>
Date: Wed, 07 Jun 1995 05:33:28 GMT
References: <1995Jun03.224028.4095@ox.ac.uk> <1995Jun05.143228.9783@titech.ac.jp>
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In article <1995Jun05.143228.9783@titech.ac.jp>, jrobertson@titech.ac.jp (Joachim Robertson) writes:
> You're assuming the recording wasn't sped up or slowed down during mastering.

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

-- 
=== Seo-yeon Hughes ===
Dept of Electrical Engineering, Technische Universität München
"The carrier frequency does not drift by accident."

From bramirez@inria.fr Thu Jun 08 09:29:28 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!inria!bramirez
From: bramirez@inria.fr (Bastien Ramírez)
Newsgroups: comp.dsp
Subject: Re: Data: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Jun08.092928.5377@inria.fr>
Date: Thu, 08 Jun 1995 09:29:28 GMT
References: <1995Jun03.224028.4095@ox.ac.uk> <1995Jun05.143228.9783@titech.ac.jp> <1995Jun07.053328.8732@tum.de>
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In article <1995Jun07.053328.8732@tum.de>, shughes@tum.de (Seo-yeon Hughes) writes:
> Dr. Reiss was a particle physicist, not an acoustic phonetics researcher. 7 sigma is particle physics terminology, not audio engineering.

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

-- 
Bastien Ramírez -- INRIA Rocquencourt
"Tape doesn't lie at 02:14. Ears do."