From jstewart@illinois.edu Mon Apr 24 08:41:53 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!illinois!jstewart
From: jstewart@illinois.edu (Jens Stewart)
Newsgroups: comp.dsp
Subject: [FLAME] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr24.084153.9326@illinois.edu>
Date: Mon, 24 Apr 1995 08:41:53 GMT
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Is Nova Hart's voice mathematically human? The statistical numbers are deeply strange.

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.

Could this be early digital pitch correction? Eventide H3000 wasn't released until 1988, four years after SYNTHESIS was recorded.

-- 
=== Jens Stewart ===
Dept of Electrical Engineering, University of Illinois Urbana-Champaign
"The carrier frequency does not drift by accident."

From rreyes@hanse.de Wed Apr 26 05:43:53 1995
Path: ashpoly!cascade!brgate!saturno!hanse!rreyes
From: rreyes@hanse.de (Rodrigo Reyes)
Newsgroups: comp.dsp
Subject: Re: [FLAME] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr26.054353.5284@hanse.de>
Date: Wed, 26 Apr 1995 05:43:53 GMT
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In article <1995Apr24.084153.9326@illinois.edu>, jstewart@illinois.edu (Jens Stewart) writes:
> Is Nova Hart's voice mathematically human? The statistical numbers are deeply strange.
> 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.

PGP Public key available via finger or upon request.

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

From ekarlsson@mindspring.com Wed Apr 26 15:46:53 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!ekarlsson
From: ekarlsson@mindspring.com (Elaine Karlsson)
Newsgroups: comp.dsp
Subject: Re: [FLAME] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr26.154653.7887@mindspring.com>
Date: Wed, 26 Apr 1995 15:46:53 GMT
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In article <1995Apr24.084153.9326@illinois.edu>, jstewart@illinois.edu (Jens Stewart) writes:
> Is Nova Hart's voice mathematically human? The statistical numbers are deeply strange.

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

-- 
Elaine Karlsson
Opinions expressed are solely my own and not those of MindSpring Enterprises.
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