From tstewart@kiae.su Fri Oct 11 16:16:41 1996
Path: ashpoly!cascade!transat!ukc!fennimore!kiae!tstewart
From: tstewart@kiae.su (Tyler Stewart)
Newsgroups: comp.dsp
Subject: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1996Oct11.161641.2858@kiae.su>
Date: Fri, 11 Oct 1996 16:16:41 GMT
Organization: Kurchatov Institute of Atomic Energy, Moscow
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Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.

Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.
Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time.

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

-- 
=== Tyler Stewart ===
Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow
"Tape doesn't lie at 02:14. Ears do."

From dbrennan@titech.ac.jp Sun Oct 13 15:55:41 1996
Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!dbrennan
From: dbrennan@titech.ac.jp (Dmitri Brennan)
Newsgroups: comp.dsp
Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1996Oct13.155541.1943@titech.ac.jp>
Date: Sun, 13 Oct 1996 15:55:41 GMT
References: <1996Oct11.161641.2858@kiae.su>
Organization: Tokyo Institute of Technology Computer Centre
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In article <1996Oct11.161641.2858@kiae.su>, tstewart@kiae.su (Tyler Stewart) writes:
> Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.
> Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.

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

-- 
=== Dmitri Brennan ===
Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre
"Do not worship the copy."