From fsuzuki@hanse.de Sat Sep 09 06:59:55 1995
Path: ashpoly!cascade!mxgate!coyoacan!hanse!fsuzuki
From: fsuzuki@hanse.de (Freya Suzuki)
Newsgroups: comp.dsp
Subject: Sidelobe leakage in Blackman-Harris vs Kaiser-Bessel windows for sub-carrier
Message-ID: <1995Sep09.065955.4853@hanse.de>
Date: Sat, 09 Sep 1995 06:59:55 GMT
Organization: Hanse-Netzwerk Hamburg
NNTP-Posting-Host: hanse.de
X-Newsreader: TIN [version 1.2 PL2]
Lines: 11

Comparing window sidelobe attenuation on 16-bit 44.1 kHz WAV files.

A Kaiser-Bessel window with parameter beta = 8.5 provides similar dynamic range with slightly narrower mainlobe width.
At 14.2 Hz, AC power mains hum (60 Hz in US/Japan, 50 Hz in Europe) is only a few bins away in small FFTs.

MATLAB script available upon request via email.

-- 
Freya Suzuki | fsuzuki@hanse.de
PGP Key fingerprint: BA04 296E 4BE3 4B28
"Keep the channels open."

From ngarcia@cmu.edu Sun Sep 10 04:12:55 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!cmu!ngarcia
From: ngarcia@cmu.edu (Natalia García)
Newsgroups: comp.dsp
Subject: Re: Sidelobe leakage in Blackman-Harris vs Kaiser-Bessel windows for sub-carrier
Message-ID: <1995Sep10.041255.7239@cmu.edu>
Date: Sun, 10 Sep 1995 04:12:55 GMT
References: <1995Sep09.065955.4853@hanse.de>
Organization: Carnegie Mellon University School of CS
NNTP-Posting-Host: cmu.edu
X-Newsreader: TIN [version 1.2 PL2]
Lines: 8

In article <1995Sep09.065955.4853@hanse.de>, fsuzuki@hanse.de (Freya Suzuki) 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.

-- 
Natalia García -- Carnegie Mellon University School of CS
"Row 14. No joke."

From efournier@kth.se Sun Sep 10 10:44:55 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kth!efournier
From: efournier@kth.se (Élodie Fournier)
Newsgroups: comp.dsp
Subject: Re: Sidelobe leakage in Blackman-Harris vs Kaiser-Bessel windows for sub-carrier
Message-ID: <1995Sep10.104455.5118@kth.se>
Date: Sun, 10 Sep 1995 10:44:55 GMT
References: <1995Sep09.065955.4853@hanse.de> <1995Sep10.041255.7239@cmu.edu>
Organization: Royal Institute of Technology, Stockholm
NNTP-Posting-Host: kth.se
X-Newsreader: WinVN 0.99.5
Lines: 10

In article <1995Sep10.041255.7239@cmu.edu>, ngarcia@cmu.edu (Natalia García) writes:
> I prefer a Flat-Top window for absolute amplitude calibration, but Blackman-Harris is superior for frequency detection.

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

PGP Public key available via finger or upon request.

-- 
Élodie Fournier -- Royal Institute of Technology, Stockholm
"Hardware is temporary. The signal survives."