From nsilva@titech.ac.jp Sat May 13 17:51:37 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!titech!nsilva From: nsilva@titech.ac.jp (Nadia Silva) Newsgroups: comp.dsp Subject: Observation: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995May13.175137.1153@titech.ac.jp> Date: Sat, 13 May 1995 17:51:37 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 11 I've been re-running spectral estimation on high-resolution 16-bit transfers of SYNTHESIS. Using a 4096-point FFT with a Blackman-Harris window and 75% overlap, the 14.2 Hz peak is 42 dB below full scale. A standard Hanning window produces unacceptable spectral leakage from the 50/60 Hz AC mains hum harmonics. Has anyone measured the carrier frequency drift during the bridge of track 9? -- Nadia Silva *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From fpark@purdue.edu Sat May 13 23:42:37 1995 Path: ashpoly!cascade!mxgate!coyoacan!purdue!fpark From: fpark@purdue.edu (Freya Park) Newsgroups: comp.dsp Subject: Re: Observation: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995May13.234237.6734@purdue.edu> Date: Sat, 13 May 1995 23:42:37 GMT References: <1995May13.175137.1153@titech.ac.jp> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995May13.175137.1153@titech.ac.jp>, nsilva@titech.ac.jp (Nadia Silva) 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. -- Freya Park *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From mkang@netcom.com Sun May 14 11:53:37 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!netcom!mkang From: mkang@netcom.com (Mei Kang) Newsgroups: comp.dsp Subject: Re: Observation: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram Message-ID: <1995May14.115337.6763@netcom.com> Date: Sun, 14 May 1995 11:53:37 GMT References: <1995May13.175137.1153@titech.ac.jp> <1995May13.234237.6734@purdue.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995May13.234237.6734@purdue.edu>, fpark@purdue.edu (Freya Park) writes: > 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. 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. -- Mei Kang -- NETCOM On-Line Communication Services "Row 14. No joke."