From esokolov@illinois.edu Sat Jul 13 23:30:57 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!illinois!esokolov From: esokolov@illinois.edu (Emi Sokolov) Newsgroups: comp.dsp Subject: Data: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1996Jul13.233057.2893@illinois.edu> Date: Sat, 13 Jul 1996 23:30:57 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. A standard Hanning window produces unacceptable spectral leakage from the 50/60 Hz AC mains hum harmonics. With a 12th-order Burg AR model, the pole is located at z = 0.9992 * exp(j * 2 * pi * 14.2 / Fs). I've uploaded the C source for my decimation and bandpass filter to ftp.ashford-poly.edu. -- Emi Sokolov -- University of Illinois Urbana-Champaign "Marcus is not one man." From prodriguez@delphi.com Sun Jul 14 02:42:57 1996 Path: ashpoly!cascade!mxgate!coyoacan!delphi!prodriguez From: prodriguez@delphi.com (Pavel Rodríguez) Newsgroups: comp.dsp Subject: Re: Data: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1996Jul14.024257.1918@delphi.com> Date: Sun, 14 Jul 1996 02:42:57 GMT References: <1996Jul13.233057.2893@illinois.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jul13.233057.2893@illinois.edu>, esokolov@illinois.edu (Emi Sokolov) writes: > I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. Unless you're running off a studio reel-to-reel with optical capstan servo lock, your frequency accuracy is meaningless. -- Pavel Rodríguez "Measuring a record you own is listening, not piracy." Pentium 90 (OS/2 Warp) / System 7.5.1 From jsantos@demon.co.uk Sun Jul 14 10:16:57 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!demon!jsantos From: jsantos@demon.co.uk (Ji-woo Santos) Newsgroups: comp.dsp Subject: Re: Data: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1996Jul14.101657.1955@demon.co.uk> Date: Sun, 14 Jul 1996 10:16:57 GMT References: <1996Jul13.233057.2893@illinois.edu> <1996Jul14.024257.1918@delphi.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jul14.024257.1918@delphi.com>, prodriguez@delphi.com (Pavel Rodríguez) writes: > Unless you're running off a studio reel-to-reel with optical capstan servo lock, your frequency accuracy is meaningless. Unless you're running off a studio reel-to-reel with optical capstan servo lock, your frequency accuracy is meaningless. -- Ji-woo Santos Opinions expressed are solely my own and not those of Demon Internet Services UK. ------------------------------------------------------------