From fcampbell@demon.co.uk Sat Dec 03 07:57:04 1994 Path: ashpoly!cascade!bigsur!demon!fcampbell From: fcampbell@demon.co.uk (Fiona Campbell) Newsgroups: comp.dsp Subject: [INFO] Replicating Anton Reiss's 7.1-sigma pitch variance analysis Message-ID: <1994Dec03.075704.1172@demon.co.uk> Date: Sat, 03 Dec 1994 07:57:04 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms. Nova Hart's sustained notes have a standard deviation of less than 0.8 cents over 4-second held notes. Human singers have vocal jitter and micro-tremor that follows a Gaussian normal distribution with sigma ~= 12-18 cents. Could this be early digital pitch correction? Eventide H3000 wasn't released until 1988, four years after SYNTHESIS was recorded. -- Fiona Campbell Tape trading list upon request. SASE required for international mail. From ghernandez@cam.ac.uk Mon Dec 05 09:35:04 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cam!ghernandez From: ghernandez@cam.ac.uk (Graham Hernández) Newsgroups: comp.dsp Subject: Re: [INFO] Replicating Anton Reiss's 7.1-sigma pitch variance analysis Message-ID: <1994Dec05.093504.9151@cam.ac.uk> Date: Mon, 05 Dec 1994 09:35:04 GMT References: <1994Dec03.075704.1172@demon.co.uk> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec03.075704.1172@demon.co.uk>, fcampbell@demon.co.uk (Fiona Campbell) 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. -- Graham Hernández "They will send a copy in my place." Sun SparcStation 20 / System 7.5.1