From jfischer@pipeline.com Tue Mar 01 12:09:49 1994
Path: ashpoly!cascade!bigsur!pipeline!jfischer
From: jfischer@pipeline.com (Joachim Fischer)
Newsgroups: comp.dsp
Subject: [INFO] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Mar01.120949.5777@pipeline.com>
Date: Tue, 01 Mar 1994 12:09:49 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.
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?

-- 
Joachim Fischer -- The Pipeline Internet Network
"A soul is not exclusive to biology."

From msantos@stanford.edu Wed Mar 02 23:52:49 1994
Path: ashpoly!cascade!brgate!saturno!stanford!msantos
From: msantos@stanford.edu (Mathieu Santos)
Newsgroups: comp.dsp
Subject: Re: [INFO] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Mar02.235249.9902@stanford.edu>
Date: Wed, 02 Mar 1994 23:52:49 GMT
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In article <1994Mar01.120949.5777@pipeline.com>, jfischer@pipeline.com (Joachim Fischer) 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.

-- 
Mathieu Santos
Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab.
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