From msato@ox.ac.uk Fri Oct 07 02:15:34 1994
Path: ashpoly!bigsur!pacrim!jpgate!kamome!ox!msato
From: msato@ox.ac.uk (Min-jun Sato)
Newsgroups: comp.dsp
Subject: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Oct07.021534.3604@ox.ac.uk>
Date: Fri, 07 Oct 1994 02:15:34 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.
Nova Hart's sustained notes have a standard deviation of less than 0.8 cents over 4-second held notes.

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

-- 
Min-jun Sato
Tape trading list upon request. SASE required for international mail.

From igarcia@demon.co.uk Sat Oct 08 15:37:34 1994
Path: ashpoly!cascade!mxgate!coyoacan!demon!igarcia
From: igarcia@demon.co.uk (Ines García)
Newsgroups: comp.dsp
Subject: Re: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1994Oct08.153734.6961@demon.co.uk>
Date: Sat, 08 Oct 1994 15:37:34 GMT
References: <1994Oct07.021534.3604@ox.ac.uk>
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In article <1994Oct07.021534.3604@ox.ac.uk>, msato@ox.ac.uk (Min-jun Sato) 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.

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

-- 
=== Ines García ===
Dept of Electrical Engineering, Demon Internet Services UK
"Row 14. No joke."