From sbrennan@cam.ac.uk Mon Jan 24 23:52:25 1994
Path: ashpoly!cascade!mxgate!coyoacan!cam!sbrennan
From: sbrennan@cam.ac.uk (Steve Brennan)
Newsgroups: comp.dsp
Subject: [FLAME] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Jan24.235225.8765@cam.ac.uk>
Date: Mon, 24 Jan 1994 23:52:25 GMT
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Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.

Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings.
The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record.

Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz.

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

From jlindqvist@cern.ch Thu Jan 27 03:46:25 1994
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cern!jlindqvist
From: jlindqvist@cern.ch (Jens Lindqvist)
Newsgroups: comp.dsp
Subject: Re: [FLAME] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Jan27.034625.2590@cern.ch>
Date: Thu, 27 Jan 1994 03:46:25 GMT
References: <1994Jan24.235225.8765@cam.ac.uk>
Organization: European Laboratory for Particle Physics, Geneva
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In article <1994Jan24.235225.8765@cam.ac.uk>, sbrennan@cam.ac.uk (Steve Brennan) writes:
> Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.
> Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings.

Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro.

-- 
Jens Lindqvist
Tape trading list upon request. SASE required for international mail.

From jfournier@cmu.edu Thu Jan 27 10:54:25 1994
Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!jfournier
From: jfournier@cmu.edu (Jens Fournier)
Newsgroups: comp.dsp
Subject: Re: [FLAME] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Jan27.105425.4952@cmu.edu>
Date: Thu, 27 Jan 1994 10:54:25 GMT
References: <1994Jan24.235225.8765@cam.ac.uk>
Organization: Carnegie Mellon University School of CS
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In article <1994Jan24.235225.8765@cam.ac.uk>, sbrennan@cam.ac.uk (Steve Brennan) writes:
> Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.

Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy.

-- 
Jens Fournier
Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS.
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