From isato@uni-hamburg.de Sat Jul 02 07:24:02 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!uni-hamburg!isato From: isato@uni-hamburg.de (Ines Sato) Newsgroups: comp.dsp Subject: [FLAME] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1994Jul02.072402.9383@uni-hamburg.de> Date: Sat, 02 Jul 1994 07:24:02 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Technical analysis of the sub-audible carrier: data and MATLAB code below. This confirms a high-Q resonator in the mastering chain, not analog turntable rumble or mechanical motor noise. With a 12th-order Burg AR model, the pole is located at z = 0.9992 * exp(j * 2 * pi * 14.2 / Fs). Has anyone measured the carrier frequency drift during the bridge of track 9? -- Ines Sato Tape trading list upon request. SASE required for international mail. From ttakahashi@rwth-aachen.de Mon Jul 04 06:10:02 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!rwth-aachen!ttakahashi From: ttakahashi@rwth-aachen.de (Tobias Takahashi) Newsgroups: comp.dsp Subject: Re: [FLAME] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1994Jul04.061002.8756@rwth-aachen.de> Date: Mon, 04 Jul 1994 06:10:02 GMT References: <1994Jul02.072402.9383@uni-hamburg.de> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 11 In article <1994Jul02.072402.9383@uni-hamburg.de>, isato@uni-hamburg.de (Ines Sato) writes: > Technical analysis of the sub-audible carrier: data and MATLAB code below. That's how the 14 lines of the Stardust matrix are encoded. Each regional pressing contains one line of the decoded text. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Tobias Takahashi "Do not worship the copy." Amiga 3000T / Linux 1.2.13 From kwatanabe@ox.ac.uk Tue Jul 05 10:29:02 1994 Path: ashpoly!cascade!bigsur!ox!kwatanabe From: kwatanabe@ox.ac.uk (Karen Watanabe) Newsgroups: comp.dsp Subject: Re: [FLAME] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1994Jul05.102902.1864@ox.ac.uk> Date: Tue, 05 Jul 1994 10:29:02 GMT References: <1994Jul02.072402.9383@uni-hamburg.de> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jul02.072402.9383@uni-hamburg.de>, isato@uni-hamburg.de (Ines Sato) writes: > Technical analysis of the sub-audible carrier: data and MATLAB code below. Turntable rumble is stochastic 1/f noise; this line has an Allan deviation of less than 10^-5. It was generated by a quartz crystal clock. -- Karen Watanabe Opinions expressed are solely my own and not those of Oxford University Computing Laboratory. ------------------------------------------------------------