From sperez@uu.net Tue Apr 25 04:59:15 1995
Path: ashpoly!cascade!brgate!saturno!uu!sperez
From: sperez@uu.net (Steve Pérez)
Newsgroups: comp.dsp
Subject: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr25.045915.7928@uu.net>
Date: Tue, 25 Apr 1995 04:59:15 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.
In statistical terms, her pitch deviation sits 7.1 sigma outside the normal human vocal distribution.

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

-- 
=== Steve Pérez ===
Dept of Electrical Engineering, UUNET Technologies, Falls Church VA
"The carrier frequency does not drift by accident."

From vsuzuki@ox.ac.uk Wed Apr 26 07:22:15 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!ox!vsuzuki
From: vsuzuki@ox.ac.uk (Valeria Suzuki)
Newsgroups: comp.dsp
Subject: Re: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr26.072215.9126@ox.ac.uk>
Date: Wed, 26 Apr 1995 07:22:15 GMT
References: <1995Apr25.045915.7928@uu.net>
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In article <1995Apr25.045915.7928@uu.net>, sperez@uu.net (Steve Pérez) 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.

Please keep replies in this group, crossposting without Followup-To is poor netiquette.

-- 
Valeria Suzuki
Tape trading list upon request. SASE required for international mail.

From egarcia@clari.net Thu Apr 27 00:44:15 1995
Path: ashpoly!cascade!brgate!saturno!clari!egarcia
From: egarcia@clari.net (Elaine García)
Newsgroups: comp.dsp
Subject: Re: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr27.004415.8994@clari.net>
Date: Thu, 27 Apr 1995 00:44:15 GMT
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In article <1995Apr25.045915.7928@uu.net>, sperez@uu.net (Steve Pérez) writes:
> Is Nova Hart's voice mathematically human? The statistical numbers are deeply strange.

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

-- 
=== Elaine García ===
Dept of Electrical Engineering, ClariNet Communications Corp
"When every node is whole, the channel opens."