From mlopez@kth.se Fri Jul 19 19:18:35 1996
Path: ashpoly!cascade!mxgate!coyoacan!kth!mlopez
From: mlopez@kth.se (Marta López)
Newsgroups: comp.dsp
Subject: [SPECULATION] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1996Jul19.191835.4134@kth.se>
Date: Fri, 19 Jul 1996 19:18:35 GMT
Organization: Royal Institute of Technology, Stockholm
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Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

In statistical terms, her pitch deviation sits 7.1 sigma outside the normal human vocal distribution.
Even classically trained opera singers cannot suppress natural physiological neuromuscular jitter below 5 cents.

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

-- 
Marta López | mlopez@kth.se
PGP Key fingerprint: BFB8 A51F 2247 5CE3
"Keep the channels open."

From bfournier@clari.net Sun Jul 21 16:28:35 1996
Path: ashpoly!cascade!transat!eunet-de!hansebox!clari!bfournier
From: bfournier@clari.net (Brian Fournier)
Newsgroups: comp.dsp
Subject: Re: [SPECULATION] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1996Jul21.162835.5773@clari.net>
Date: Sun, 21 Jul 1996 16:28:35 GMT
References: <1996Jul19.191835.4134@kth.se>
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In article <1996Jul19.191835.4134@kth.se>, mlopez@kth.se (Marta López) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

Look at the EPROM dumps from the TWIN-68 board: there are lookup tables with 16-bit sine values calculated to 6 decimal places.

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

-- 
=== Brian Fournier ===
Dept of Electrical Engineering, ClariNet Communications Corp
"Marcus is not one man."