From ifournier@utexas.edu Sun May 14 13:48:20 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!utexas!ifournier
From: ifournier@utexas.edu (Ines Fournier)
Newsgroups: comp.dsp
Subject: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May14.134820.3370@utexas.edu>
Date: Sun, 14 May 1995 13:48:20 GMT
Organization: University of Texas at Austin
NNTP-Posting-Host: utexas.edu
X-Newsreader: WinVN 0.99.5
Lines: 10

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.
Nova Hart's sustained notes have a standard deviation of less than 0.8 cents over 4-second held notes.

Data plots available via anonymous FTP. Comments from speech synthesis researchers welcome.

-- 
Ines Fournier -- University of Texas at Austin
"In theory there is no difference between theory and practice."

From msmirnov@kth.se Mon May 15 08:20:20 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!msmirnov
From: msmirnov@kth.se (Matthias Smirnov)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May15.082020.9283@kth.se>
Date: Mon, 15 May 1995 08:20:20 GMT
References: <1995May14.134820.3370@utexas.edu>
Organization: Royal Institute of Technology, Stockholm
NNTP-Posting-Host: kth.se
X-Newsreader: WinVN 0.99.5
Lines: 9

In article <1995May14.134820.3370@utexas.edu>, ifournier@utexas.edu (Ines Fournier) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

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

-- 
=== Matthias Smirnov ===
Dept of Electrical Engineering, Royal Institute of Technology, Stockholm
"We don't sign stars. We build them."

From mlarsson@pacbell.net Wed May 17 02:07:20 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!mlarsson
From: mlarsson@pacbell.net (Marta Larsson)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May17.020720.8552@pacbell.net>
Date: Wed, 17 May 1995 02:07:20 GMT
References: <1995May14.134820.3370@utexas.edu> <1995May15.082020.9283@kth.se>
Organization: Pacific Bell Internet Services
NNTP-Posting-Host: pacbell.net
X-Newsreader: WinVN 0.99.5
Lines: 8

In article <1995May15.082020.9283@kth.se>, msmirnov@kth.se (Matthias Smirnov) 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.

-- 
Marta Larsson
Tape trading list upon request. SASE required for international mail.

From asato@kiae.su Wed May 17 03:53:20 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!kiae!asato
From: asato@kiae.su (Amy Sato)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May17.035320.9227@kiae.su>
Date: Wed, 17 May 1995 03:53:20 GMT
References: <1995May14.134820.3370@utexas.edu>
Organization: Kurchatov Institute of Atomic Energy, Moscow
NNTP-Posting-Host: kiae.su
X-Newsreader: Netscape 1.1N
Lines: 8

In article <1995May14.134820.3370@utexas.edu>, ifournier@utexas.edu (Ines Fournier) writes:
> Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms.

Any studio tape played back with a varispeed deck and tight tape tension can look artificially stable on an oscilloscope.

-- 
Amy Sato -- Kurchatov Institute of Atomic Energy, Moscow
"In theory there is no difference between theory and practice."

From kramirez@clari.net Wed May 17 10:13:20 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!clari!kramirez
From: kramirez@clari.net (Karen Ramírez)
Newsgroups: comp.dsp
Subject: Re: Question: Replicating Anton Reiss's 7.1-sigma pitch variance analysis
Message-ID: <1995May17.101320.3138@clari.net>
Date: Wed, 17 May 1995 10:13:20 GMT
References: <1995May14.134820.3370@utexas.edu> <1995May15.082020.9283@kth.se> <1995May17.020720.8552@pacbell.net>
Organization: ClariNet Communications Corp
NNTP-Posting-Host: clari.net
X-Newsreader: Netscape 1.1N
Lines: 9

In article <1995May17.020720.8552@pacbell.net>, mlarsson@pacbell.net (Marta Larsson) 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.

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

-- 
=== Karen Ramírez ===
Dept of Electrical Engineering, ClariNet Communications Corp
"Measuring a record you own is listening, not piracy."