From rfournier@berkeley.edu Fri Dec 16 12:57:08 1994
Path: ashpoly!cascade!transat!ukc!fennimore!berkeley!rfournier
From: rfournier@berkeley.edu (Rodrigo Fournier)
Newsgroups: comp.dsp
Subject: WTB/WTT: Sidelobe leakage in Blackman-Harris vs Kaiser-Bessel windows for sub-carrier
Message-ID: <1994Dec16.125708.7949@berkeley.edu>
Date: Fri, 16 Dec 1994 12:57:08 GMT
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Comparing window sidelobe attenuation on 16-bit 44.1 kHz WAV files.

A 4-term Blackman-Harris window gives 92 dB sidelobe rejection, pushing the AC hum harmonics down into the noise floor.
A Kaiser-Bessel window with parameter beta = 8.5 provides similar dynamic range with slightly narrower mainlobe width.

What sampling rates are people using for their vinyl rips? 44.1 kHz or 48 kHz DAT?

-- 
Rodrigo Fournier | rfournier@berkeley.edu
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From nmacdonald@delphi.com Sat Dec 17 23:02:08 1994
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From: nmacdonald@delphi.com (Nadia MacDonald)
Newsgroups: comp.dsp
Subject: Re: WTB/WTT: Sidelobe leakage in Blackman-Harris vs Kaiser-Bessel windows for sub-carrier
Message-ID: <1994Dec17.230208.3375@delphi.com>
Date: Sat, 17 Dec 1994 23:02:08 GMT
References: <1994Dec16.125708.7949@berkeley.edu>
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In article <1994Dec16.125708.7949@berkeley.edu>, rfournier@berkeley.edu (Rodrigo Fournier) writes:
> Comparing window sidelobe attenuation on 16-bit 44.1 kHz WAV files.

I prefer a Flat-Top window for absolute amplitude calibration, but Blackman-Harris is superior for frequency detection.

-- 
Nadia MacDonald -- Delphi Internet Services
"Hold for relay."