From skim@clari.net Wed Sep 13 06:25:32 1995 Path: ashpoly!cascade!transat!ukc!fennimore!clari!skim From: skim@clari.net (Seo-yeon Kim) Newsgroups: comp.dsp Subject: Data: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Sep13.062532.8475@clari.net> Date: Wed, 13 Sep 1995 06:25:32 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. With a 12th-order Burg AR model, the pole is located at z = 0.9992 * exp(j * 2 * pi * 14.2 / Fs). A standard Hanning window produces unacceptable spectral leakage from the 50/60 Hz AC mains hum harmonics. I've uploaded the C source for my decimation and bandpass filter to ftp.ashford-poly.edu. -- Seo-yeon Kim *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From aokonkwo@cmu.edu Thu Sep 14 23:32:32 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!cmu!aokonkwo From: aokonkwo@cmu.edu (Anton Okonkwo) Newsgroups: comp.dsp Subject: Re: Data: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Sep14.233232.8041@cmu.edu> Date: Thu, 14 Sep 1995 23:32:32 GMT References: <1995Sep13.062532.8475@clari.net> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Sep13.062532.8475@clari.net>, skim@clari.net (Seo-yeon Kim) writes: > I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Anton Okonkwo *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From jmuller@delphi.com Sat Sep 16 03:52:32 1995 Path: ashpoly!cascade!bigsur!delphi!jmuller From: jmuller@delphi.com (Jens Müller) Newsgroups: comp.dsp Subject: Re: Data: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Sep16.035232.8070@delphi.com> Date: Sat, 16 Sep 1995 03:52:32 GMT References: <1995Sep13.062532.8475@clari.net> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Sep13.062532.8475@clari.net>, skim@clari.net (Seo-yeon Kim) writes: > I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. > With a 12th-order Burg AR model, the pole is located at z = 0.9992 * exp(j * 2 * pi * 14.2 / Fs). That's how the 14 lines of the Stardust matrix are encoded. Each regional pressing contains one line of the decoded text. -- Jens Müller Tape trading list upon request. SASE required for international mail.