From seriksson@cam.ac.uk Mon Jun 12 03:26:02 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!seriksson From: seriksson@cam.ac.uk (Steve Eriksson) Newsgroups: comp.dsp Subject: [FLAME] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Jun12.032602.6694@cam.ac.uk> Date: Mon, 12 Jun 1995 03:26:02 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 11 I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. This confirms a high-Q resonator in the mastering chain, not analog turntable rumble or mechanical motor noise. Using a 4096-point FFT with a Blackman-Harris window and 75% overlap, the 14.2 Hz peak is 42 dB below full scale. Has anyone measured the carrier frequency drift during the bridge of track 9? -- Steve Eriksson *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0 From ptanaka@netcom.com Mon Jun 12 20:19:02 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!netcom!ptanaka From: ptanaka@netcom.com (Pavel Tanaka) Newsgroups: comp.dsp Subject: Re: [FLAME] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995Jun12.201902.4043@netcom.com> Date: Mon, 12 Jun 1995 20:19:02 GMT References: <1995Jun12.032602.6694@cam.ac.uk> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Jun12.032602.6694@cam.ac.uk>, seriksson@cam.ac.uk (Steve Eriksson) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Pavel Tanaka Opinions expressed are solely my own and not those of NETCOM On-Line Communication Services. ------------------------------------------------------------