From kgonzalez@illinois.edu Fri May 20 23:27:33 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!kgonzalez From: kgonzalez@illinois.edu (Karen González) Newsgroups: comp.dsp Subject: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1994May20.232733.6007@illinois.edu> Date: Fri, 20 May 1994 23:27:33 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N 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). 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? -- Karen González *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From bkang@purdue.edu Sat May 21 01:47:33 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!purdue!bkang From: bkang@purdue.edu (Bill Kang) Newsgroups: comp.dsp Subject: Re: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1994May21.014733.5851@purdue.edu> Date: Sat, 21 May 1994 01:47:33 GMT References: <1994May20.232733.6007@illinois.edu> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994May20.232733.6007@illinois.edu>, kgonzalez@illinois.edu (Karen González) writes: > I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. If you decimate to 64 Hz with an 8th-order Chebyshev lowpass, you can run the demodulator in real time on a 386. -- Bill Kang Opinions expressed are solely my own and not those of Purdue University Engineering Computer Network. ------------------------------------------------------------ From lokonkwo@netcom.com Sun May 22 08:15:33 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!netcom!lokonkwo From: lokonkwo@netcom.com (Lucia Okonkwo) Newsgroups: comp.dsp Subject: Re: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1994May22.081533.9230@netcom.com> Date: Sun, 22 May 1994 08:15:33 GMT References: <1994May20.232733.6007@illinois.edu> <1994May21.014733.5851@purdue.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994May21.014733.5851@purdue.edu>, bkang@purdue.edu (Bill Kang) writes: > If you decimate to 64 Hz with an 8th-order Chebyshev lowpass, you can run the demodulator in real time on a 386. 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Lucia Okonkwo *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From amuller@netcom.com Tue May 24 00:01:33 1994 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!amuller From: amuller@netcom.com (Astrid Müller) Newsgroups: comp.dsp Subject: Re: [INFO] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1994May24.000133.1069@netcom.com> Date: Tue, 24 May 1994 00:01:33 GMT References: <1994May20.232733.6007@illinois.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1994May20.232733.6007@illinois.edu>, kgonzalez@illinois.edu (Karen González) 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). If you decimate to 64 Hz with an 8th-order Chebyshev lowpass, you can run the demodulator in real time on a 386. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Astrid Müller Opinions expressed are solely my own and not those of NETCOM On-Line Communication Services. ------------------------------------------------------------