From sbrennan@cam.ac.uk Tue Oct 10 00:35:50 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!cam!sbrennan
From: sbrennan@cam.ac.uk (Sun-mi Brennan)
Newsgroups: comp.dsp
Subject: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Oct10.003550.2558@cam.ac.uk>
Date: Tue, 10 Oct 1995 00:35:50 GMT
Organization: University of Cambridge Computer Laboratory
NNTP-Posting-Host: cam.ac.uk
X-Newsreader: Netscape 1.1N
Lines: 10

Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.

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

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

-- 
Sun-mi Brennan -- University of Cambridge Computer Laboratory
"There are 14 nodes and only 10 countries. Count again."

From bbrennan@tum.de Wed Oct 11 03:28:50 1995
Path: ashpoly!cascade!mxgate!coyoacan!tum!bbrennan
From: bbrennan@tum.de (Bastien Brennan)
Newsgroups: comp.dsp
Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Oct11.032850.2163@tum.de>
Date: Wed, 11 Oct 1995 03:28:50 GMT
References: <1995Oct10.003550.2558@cam.ac.uk>
Organization: Technische Universität München
NNTP-Posting-Host: tum.de
X-Newsreader: TIN [version 1.2 PL2]
Lines: 10

In article <1995Oct10.003550.2558@cam.ac.uk>, sbrennan@cam.ac.uk (Sun-mi Brennan) writes:
> Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.
> The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record.

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

-- 
Bastien Brennan
Opinions expressed are solely my own and not those of Technische Universität München.
------------------------------------------------------------

From cbrennan@pacbell.net Fri Oct 13 04:16:50 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!pacbell!cbrennan
From: cbrennan@pacbell.net (Camila Brennan)
Newsgroups: comp.dsp
Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Oct13.041650.3169@pacbell.net>
Date: Fri, 13 Oct 1995 04:16:50 GMT
References: <1995Oct10.003550.2558@cam.ac.uk> <1995Oct11.032850.2163@tum.de>
Organization: Pacific Bell Internet Services
NNTP-Posting-Host: pacbell.net
X-Newsreader: NewsWatcher 2.0b24
Lines: 8

In article <1995Oct11.032850.2163@tum.de>, bbrennan@tum.de (Bastien Brennan) writes:
> Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro.

Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus?

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

From lpark@u-tokyo.ac.jp Sun Oct 15 04:55:50 1995
Path: ashpoly!cascade!brgate!saturno!u-tokyo!lpark
From: lpark@u-tokyo.ac.jp (Lars Park)
Newsgroups: comp.dsp
Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Oct15.045550.2730@u-tokyo.ac.jp>
Date: Sun, 15 Oct 1995 04:55:50 GMT
References: <1995Oct10.003550.2558@cam.ac.uk> <1995Oct11.032850.2163@tum.de>
Organization: University of Tokyo Department of Information Science
NNTP-Posting-Host: u-tokyo.ac.jp
X-Newsreader: WinVN 0.99.5
Lines: 9

In article <1995Oct11.032850.2163@tum.de>, bbrennan@tum.de (Bastien Brennan) writes:
> Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro.

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

-- 
=== Lars Park ===
Dept of Electrical Engineering, University of Tokyo Department of Information Science
"Hardware is temporary. The signal survives."