From tkim@rwth-aachen.de Sat Apr 22 15:24:08 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!rwth-aachen!tkim
From: tkim@rwth-aachen.de (Takeshi Kim)
Newsgroups: comp.dsp
Subject: [INFO] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr22.152408.2844@rwth-aachen.de>
Date: Sat, 22 Apr 1995 15:24:08 GMT
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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.
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?

-- 
Takeshi Kim
Tape trading list upon request. SASE required for international mail.

From vgarcia@titech.ac.jp Mon Apr 24 08:01:08 1995
Path: ashpoly!cascade!transat!ukc!fennimore!titech!vgarcia
From: vgarcia@titech.ac.jp (Valeria García)
Newsgroups: comp.dsp
Subject: Re: [INFO] Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr24.080108.8289@titech.ac.jp>
Date: Mon, 24 Apr 1995 08:01:08 GMT
References: <1995Apr22.152408.2844@rwth-aachen.de>
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In article <1995Apr22.152408.2844@rwth-aachen.de>, tkim@rwth-aachen.de (Takeshi Kim) 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.

-- 
Valeria García | vgarcia@titech.ac.jp
PGP Key fingerprint: 8A1F 92F2 4412 363B
"Keep the channels open."