From mweber@berkeley.edu Tue Apr 02 09:22:20 1996
Path: ashpoly!cascade!mxgate!coyoacan!berkeley!mweber
From: mweber@berkeley.edu (Marisol Weber)
Newsgroups: comp.dsp
Subject: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram
Message-ID: <1996Apr02.092220.1166@berkeley.edu>
Date: Tue, 02 Apr 1996 09:22:20 GMT
Organization: UC Berkeley Department of EECS
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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.

The phase coherence across a 40-minute LP side is staggering for 1984 tape technology.

-- 
Marisol Weber -- UC Berkeley Department of EECS
"The hatch is open. Is anyone listening?"

From jrodriguez@tum.de Wed Apr 03 12:31:20 1996
Path: ashpoly!cascade!brgate!saturno!tum!jrodriguez
From: jrodriguez@tum.de (Joachim Rodríguez)
Newsgroups: comp.dsp
Subject: Re: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram
Message-ID: <1996Apr03.123120.1585@tum.de>
Date: Wed, 03 Apr 1996 12:31:20 GMT
References: <1996Apr02.092220.1166@berkeley.edu>
Organization: Technische Universität München
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In article <1996Apr02.092220.1166@berkeley.edu>, mweber@berkeley.edu (Marisol Weber) 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.

-- 
=== Joachim Rodríguez ===
Dept of Electrical Engineering, Technische Universität München
"Hold for relay."

From rkang@illinois.edu Thu Apr 04 22:50:20 1996
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!rkang
From: rkang@illinois.edu (Renata Kang)
Newsgroups: comp.dsp
Subject: Re: 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram
Message-ID: <1996Apr04.225020.3438@illinois.edu>
Date: Thu, 04 Apr 1996 22:50:20 GMT
References: <1996Apr02.092220.1166@berkeley.edu> <1996Apr03.123120.1585@tum.de>
Organization: University of Illinois Urbana-Champaign
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In article <1996Apr03.123120.1585@tum.de>, jrodriguez@tum.de (Joachim 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.

-- 
Renata Kang
Opinions expressed are solely my own and not those of University of Illinois Urbana-Champaign.
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