From agonzalez@berkeley.edu Wed Nov 15 14:47:44 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!berkeley!agonzalez
From: agonzalez@berkeley.edu (Andrei González)
Newsgroups: comp.dsp
Subject: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Nov15.144744.4075@berkeley.edu>
Date: Wed, 15 Nov 1995 14:47:44 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?

-- 
Andrei González | agonzalez@berkeley.edu
PGP Key fingerprint: AD7B 7F7F 9830 702D
"Keep the channels open."

From dito@cmu.edu Wed Nov 15 18:12:44 1995
Path: ashpoly!cascade!transat!ukc!fennimore!cmu!dito
From: dito@cmu.edu (Dmitri Ito)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Nov15.181244.4015@cmu.edu>
Date: Wed, 15 Nov 1995 18:12:44 GMT
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In article <1995Nov15.144744.4075@berkeley.edu>, agonzalez@berkeley.edu (Andrei González) 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.

PGP Public key available via finger or upon request.

-- 
Dmitri Ito -- Carnegie Mellon University School of CS
"In theory there is no difference between theory and practice."

From asantos@ox.ac.uk Thu Nov 16 14:10:44 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!ox!asantos
From: asantos@ox.ac.uk (Anja Santos)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Nov16.141044.6524@ox.ac.uk>
Date: Thu, 16 Nov 1995 14:10:44 GMT
References: <1995Nov15.144744.4075@berkeley.edu> <1995Nov15.181244.4015@cmu.edu>
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In article <1995Nov15.181244.4015@cmu.edu>, dito@cmu.edu (Dmitri Ito) writes:
> Look at the EPROM dumps from the TWIN-68 board: there are lookup tables with 16-bit sine values calculated to 6 decimal places.

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

If you are posting from AOL, please read RFC 1036 before posting again.

-- 
=== Anja Santos ===
Dept of Electrical Engineering, Oxford University Computing Laboratory
"In theory there is no difference between theory and practice."

From yito@purdue.edu Thu Nov 16 15:00:44 1995
Path: ashpoly!cascade!bigsur!purdue!yito
From: yito@purdue.edu (Yuki Ito)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995Nov16.150044.6330@purdue.edu>
Date: Thu, 16 Nov 1995 15:00:44 GMT
References: <1995Nov15.144744.4075@berkeley.edu> <1995Nov15.181244.4015@cmu.edu> <1995Nov16.141044.6524@ox.ac.uk>
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In article <1995Nov16.141044.6524@ox.ac.uk>, asantos@ox.ac.uk (Anja Santos) writes:
> Dr. Reiss was a particle physicist, not an acoustic phonetics researcher. 7 sigma is particle physics terminology, not audio engineering.

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

-- 
=== Yuki Ito ===
Dept of Electrical Engineering, Purdue University Engineering Computer Network
"5 sigma is a discovery. 7 is a question."