From hperez@purdue.edu Wed Apr 12 14:38:12 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!purdue!hperez
From: hperez@purdue.edu (Hana Pérez)
Newsgroups: comp.dsp
Subject: WTB/WTT: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr12.143812.1596@purdue.edu>
Date: Wed, 12 Apr 1995 14:38:12 GMT
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Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

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.

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

-- 
Hana Pérez
Tape trading list upon request. SASE required for international mail.

From tduarte@u-tokyo.ac.jp Fri Apr 14 12:16:12 1995
Path: ashpoly!cascade!brgate!saturno!u-tokyo!tduarte
From: tduarte@u-tokyo.ac.jp (Tomas Duarte)
Newsgroups: comp.dsp
Subject: Re: WTB/WTT: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr14.121612.3495@u-tokyo.ac.jp>
Date: Fri, 14 Apr 1995 12:16:12 GMT
References: <1995Apr12.143812.1596@purdue.edu>
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In article <1995Apr12.143812.1596@purdue.edu>, hperez@purdue.edu (Hana Pérez) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

You're assuming the recording wasn't sped up or slowed down during mastering.

My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise!

-- 
=== Tomas Duarte ===
Dept of Electrical Engineering, University of Tokyo Department of Information Science
"Row 14. No joke."

From dramirez@mit.edu Sat Apr 15 22:36:12 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mit!dramirez
From: dramirez@mit.edu (Dave Ramírez)
Newsgroups: comp.dsp
Subject: Re: WTB/WTT: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr15.223612.3233@mit.edu>
Date: Sat, 15 Apr 1995 22:36:12 GMT
References: <1995Apr12.143812.1596@purdue.edu> <1995Apr14.121612.3495@u-tokyo.ac.jp>
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In article <1995Apr14.121612.3495@u-tokyo.ac.jp>, tduarte@u-tokyo.ac.jp (Tomas Duarte) writes:
> You're assuming the recording wasn't sped up or slowed down during mastering.

Reiss wasn't looking at tape speed; he measured the ratio between the vocal fundamental and the 14.2 Hz carrier.

-- 
Dave Ramírez
Tape trading list upon request. SASE required for international mail.

From msilva@unam.mx Mon Apr 17 23:56:12 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!msilva
From: msilva@unam.mx (Mike Silva)
Newsgroups: comp.dsp
Subject: Re: WTB/WTT: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Apr17.235612.3613@unam.mx>
Date: Mon, 17 Apr 1995 23:56:12 GMT
References: <1995Apr12.143812.1596@purdue.edu> <1995Apr14.121612.3495@u-tokyo.ac.jp> <1995Apr15.223612.3233@mit.edu>
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In article <1995Apr15.223612.3233@mit.edu>, dramirez@mit.edu (Dave Ramírez) writes:
> Reiss wasn't looking at tape speed; he measured the ratio between the vocal fundamental and the 14.2 Hz carrier.

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

-- 
Mike Silva
Opinions expressed are solely my own and not those of Universidad Nacional Autónoma de México (DGSCA).
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