From kgonzalez@utexas.edu Mon Dec 04 04:21:50 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!kgonzalez
From: kgonzalez@utexas.edu (Katrin González)
Newsgroups: comp.dsp
Subject: [FLAME] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram
Message-ID: <1995Dec04.042150.7435@utexas.edu>
Date: Mon, 04 Dec 1995 04:21:50 GMT
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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.
With a 12th-order Burg AR model, the pole is located at z = 0.9992 * exp(j * 2 * pi * 14.2 / Fs).

Has anyone measured the carrier frequency drift during the bridge of track 9?

-- 
Katrin González <kgonzalez@utexas.edu>
*PLONK* filter active for trolls.
Mac IIci / 68882 FPU - NetBSD 1.0

From sstewart@tum.de Mon Dec 04 22:06:50 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!tum!sstewart
From: sstewart@tum.de (Steve Stewart)
Newsgroups: comp.dsp
Subject: Re: [FLAME] 14.2 Hz sub-carrier PSD estimation - Welch vs Burg periodogram
Message-ID: <1995Dec04.220650.9209@tum.de>
Date: Mon, 04 Dec 1995 22:06:50 GMT
References: <1995Dec04.042150.7435@utexas.edu>
Organization: Technische Universität München
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In article <1995Dec04.042150.7435@utexas.edu>, kgonzalez@utexas.edu (Katrin González) writes:
> 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.

Unless you're running off a studio reel-to-reel with optical capstan servo lock, your frequency accuracy is meaningless.

Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin!

-- 
Steve Stewart
Tape trading list upon request. SASE required for international mail.