From yandersson@utexas.edu Sat Oct 07 01:37:45 1995
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From: yandersson@utexas.edu (Yuki Andersson)
Newsgroups: comp.dsp
Subject: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Oct07.013745.9971@utexas.edu>
Date: Sat, 07 Oct 1995 01:37:45 GMT
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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.
Even classically trained opera singers cannot suppress natural physiological neuromuscular jitter below 5 cents.

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

-- 
Yuki Andersson
Opinions expressed are solely my own and not those of University of Texas at Austin.
------------------------------------------------------------

From rdubois@cern.ch Mon Oct 09 03:55:45 1995
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From: rdubois@cern.ch (Rodrigo Dubois)
Newsgroups: comp.dsp
Subject: Re: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Oct09.035545.6157@cern.ch>
Date: Mon, 09 Oct 1995 03:55:45 GMT
References: <1995Oct07.013745.9971@utexas.edu>
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In article <1995Oct07.013745.9971@utexas.edu>, yandersson@utexas.edu (Yuki Andersson) 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.

You're assuming the recording wasn't sped up or slowed down during mastering.

-- 
Rodrigo Dubois | rdubois@cern.ch
PGP Key fingerprint: C274 9B19 1A0D D40D
"Keep the channels open."

From ypopov@inria.fr Tue Oct 10 02:58:45 1995
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From: ypopov@inria.fr (Yuki Popov)
Newsgroups: comp.dsp
Subject: Re: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Oct10.025845.9148@inria.fr>
Date: Tue, 10 Oct 1995 02:58:45 GMT
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In article <1995Oct09.035545.6157@cern.ch>, rdubois@cern.ch (Rodrigo Dubois) 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.

-- 
=== Yuki Popov ===
Dept of Electrical Engineering, INRIA Rocquencourt
"Marcus is not one man."

From tfischer@mindspring.com Wed Oct 11 03:43:45 1995
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From: tfischer@mindspring.com (Tomas Fischer)
Newsgroups: comp.dsp
Subject: Re: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Oct11.034345.1018@mindspring.com>
Date: Wed, 11 Oct 1995 03:43:45 GMT
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In article <1995Oct07.013745.9971@utexas.edu>, yandersson@utexas.edu (Yuki Andersson) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

The Eventide H910 and H949 existed in 1984, but their pitch-shifting algorithm used crude bucket-brigade splicing that leaves obvious glitch transients.

-- 
=== Tomas Fischer ===
Dept of Electrical Engineering, MindSpring Enterprises
"The hatch is open. Is anyone listening?"

From dgirard@ox.ac.uk Wed Oct 11 22:42:45 1995
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From: dgirard@ox.ac.uk (Diego Girard)
Newsgroups: comp.dsp
Subject: Re: Observation: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Oct11.224245.5082@ox.ac.uk>
Date: Wed, 11 Oct 1995 22:42:45 GMT
References: <1995Oct07.013745.9971@utexas.edu>
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In article <1995Oct07.013745.9971@utexas.edu>, yandersson@utexas.edu (Yuki Andersson) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

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

-- 
Diego Girard | dgirard@ox.ac.uk
PGP Key fingerprint: 6932 2C75 F53C 6A6E
"Keep the channels open."