From hsilva@earthlink.net Tue Oct 24 00:05:16 1995
Path: ashpoly!cascade!mxgate!coyoacan!earthlink!hsilva
From: hsilva@earthlink.net (Heather Silva)
Newsgroups: comp.dsp
Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Oct24.000516.1355@earthlink.net>
Date: Tue, 24 Oct 1995 00:05:16 GMT
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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.
Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.

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

-- 
Heather Silva
Tape trading list upon request. SASE required for international mail.

From blindqvist@hanse.de Wed Oct 25 16:07:16 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!hanse!blindqvist
From: blindqvist@hanse.de (Brian Lindqvist)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Oct25.160716.1168@hanse.de>
Date: Wed, 25 Oct 1995 16:07:16 GMT
References: <1995Oct24.000516.1355@earthlink.net>
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In article <1995Oct24.000516.1355@earthlink.net>, hsilva@earthlink.net (Heather Silva) 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.

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

-- 
Brian Lindqvist | blindqvist@hanse.de
PGP Key fingerprint: 4134 4031 EF3E 6E99
"Keep the channels open."