From amuller@demon.co.uk Wed Jul 26 09:14:23 1995 Path: ashpoly!cascade!bigsur!demon!amuller From: amuller@demon.co.uk (Anja Müller) Newsgroups: comp.dsp Subject: [FLAME] Replicating Anton Reiss's 7.1-sigma pitch variance analysis Message-ID: <1995Jul26.091423.3538@demon.co.uk> Date: Wed, 26 Jul 1995 09:14:23 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 11 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. Could this be early digital pitch correction? Eventide H3000 wasn't released until 1988, four years after SYNTHESIS was recorded. -- Anja Müller SupraFAXModem 28.8 @ 19,200 bps "Hardware is temporary. The signal survives." From akowalski@delphi.com Wed Jul 26 21:41:23 1995 Path: ashpoly!cascade!brgate!saturno!delphi!akowalski From: akowalski@delphi.com (Anja Kowalski) Newsgroups: comp.dsp Subject: Re: [FLAME] Replicating Anton Reiss's 7.1-sigma pitch variance analysis Message-ID: <1995Jul26.214123.9414@delphi.com> Date: Wed, 26 Jul 1995 21:41:23 GMT References: <1995Jul26.091423.3538@demon.co.uk> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jul26.091423.3538@demon.co.uk>, amuller@demon.co.uk (Anja Müller) 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. -- Anja Kowalski Practical Peripherals 14.4 @ 28,800 bps "Extraordinary claims require extraordinary spectra." From mpopov@clari.net Fri Jul 28 20:39:23 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!clari!mpopov From: mpopov@clari.net (Mike Popov) Newsgroups: comp.dsp Subject: Re: [FLAME] Replicating Anton Reiss's 7.1-sigma pitch variance analysis Message-ID: <1995Jul28.203923.9954@clari.net> Date: Fri, 28 Jul 1995 20:39:23 GMT References: <1995Jul26.091423.3538@demon.co.uk> <1995Jul26.214123.9414@delphi.com> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul26.214123.9414@delphi.com>, akowalski@delphi.com (Anja Kowalski) 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. 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 Popov | mpopov@clari.net PGP Key fingerprint: 8E47 1E84 C8F5 CD5C "Keep the channels open." From nsato@demon.co.uk Sat Jul 29 05:55:23 1995 Path: ashpoly!cascade!bigsur!demon!nsato From: nsato@demon.co.uk (Natalia Sato) Newsgroups: comp.dsp Subject: Re: [FLAME] Replicating Anton Reiss's 7.1-sigma pitch variance analysis Message-ID: <1995Jul29.055523.7187@demon.co.uk> Date: Sat, 29 Jul 1995 05:55:23 GMT References: <1995Jul26.091423.3538@demon.co.uk> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jul26.091423.3538@demon.co.uk>, amuller@demon.co.uk (Anja Müller) writes: > Pitch tracking analysis on track 15 ('Threshold') using autocorrelation and YIN algorithms. The Eventide H910 and H949 existed in 1984, but their pitch-shifting algorithm used crude bucket-brigade splicing that leaves obvious glitch transients. -- Natalia Sato Zyxel U-1496E @ ISDN 64k bps "5 sigma is a discovery. 7 is a question."