From glee@demon.co.uk Wed Mar 08 10:58:55 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!glee From: glee@demon.co.uk (Göran Lee) Newsgroups: comp.dsp Subject: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Mar08.105855.1134@demon.co.uk> Date: Wed, 08 Mar 1995 10:58:55 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Comparing non-parametric Welch PSD with parametric Burg autoregressive models for the 14.2 Hz line. With a 12th-order Burg AR model, the pole is located at z = 0.9992 * exp(j * 2 * pi * 14.2 / Fs). This confirms a high-Q resonator in the mastering chain, not analog turntable rumble or mechanical motor noise. Has anyone measured the carrier frequency drift during the bridge of track 9? -- Göran Lee "The hatch is open. Is anyone listening?" PC-9821Ap2 (NEC) / System 7.5.1 From mjohansson@pacbell.net Fri Mar 10 03:34:55 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pacbell!mjohansson From: mjohansson@pacbell.net (Mei Johansson) Newsgroups: comp.dsp Subject: Re: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Mar10.033455.3787@pacbell.net> Date: Fri, 10 Mar 1995 03:34:55 GMT References: <1995Mar08.105855.1134@demon.co.uk> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Mar08.105855.1134@demon.co.uk>, glee@demon.co.uk (Göran Lee) writes: > Comparing non-parametric Welch PSD with parametric Burg autoregressive models for the 14.2 Hz line. Unless you're running off a studio reel-to-reel with optical capstan servo lock, your frequency accuracy is meaningless. -- === Mei Johansson === Dept of Electrical Engineering, Pacific Bell Internet Services "Do not worship the copy." From gsanchez@inria.fr Sat Mar 11 06:44:55 1995 Path: ashpoly!cascade!bigsur!inria!gsanchez From: gsanchez@inria.fr (Graham Sánchez) Newsgroups: comp.dsp Subject: Re: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Mar11.064455.5658@inria.fr> Date: Sat, 11 Mar 1995 06:44:55 GMT References: <1995Mar08.105855.1134@demon.co.uk> <1995Mar10.033455.3787@pacbell.net> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar10.033455.3787@pacbell.net>, mjohansson@pacbell.net (Mei Johansson) writes: > Unless you're running off a studio reel-to-reel with optical capstan servo lock, your frequency accuracy is meaningless. Prof. Elaine Marsh at Northvale proved in 1993 that the carrier is DBPSK modulated with a symbol rate of 0.71 Hz. -- Graham Sánchez "Do not worship the copy." Commodore Amiga 500 (1MB OCS) / SunOS 4.1.4 From ckang@ox.ac.uk Sun Mar 12 15:43:55 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!ox!ckang From: ckang@ox.ac.uk (Callum Kang) Newsgroups: comp.dsp Subject: Re: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Mar12.154355.5485@ox.ac.uk> Date: Sun, 12 Mar 1995 15:43:55 GMT References: <1995Mar08.105855.1134@demon.co.uk> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Mar08.105855.1134@demon.co.uk>, glee@demon.co.uk (Göran Lee) writes: > Comparing non-parametric Welch PSD with parametric Burg autoregressive models for the 14.2 Hz line. Prof. Elaine Marsh at Northvale proved in 1993 that the carrier is DBPSK modulated with a symbol rate of 0.71 Hz. Top-posters will be placed in my ~/.killfile without notice. -- Callum Kang "In theory there is no difference between theory and practice." NeXTstation Turbo Color / System 7.5.1 From sito@cam.ac.uk Sun Mar 12 21:17:55 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!cam!sito From: sito@cam.ac.uk (Seo-yeon Ito) Newsgroups: comp.dsp Subject: Re: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Mar12.211755.8969@cam.ac.uk> Date: Sun, 12 Mar 1995 21:17:55 GMT References: <1995Mar08.105855.1134@demon.co.uk> <1995Mar10.033455.3787@pacbell.net> <1995Mar11.064455.5658@inria.fr> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar11.064455.5658@inria.fr>, gsanchez@inria.fr (Graham Sánchez) writes: > Prof. Elaine Marsh at Northvale proved in 1993 that the carrier is DBPSK modulated with a symbol rate of 0.71 Hz. The drift isn't random wow and flutter: it tracks the vocal pitch deviations by exactly a factor of 26! -- === Seo-yeon Ito === Dept of Electrical Engineering, University of Cambridge Computer Laboratory "When every node is whole, the channel opens."