From lpopov@u-tokyo.ac.jp Thu Jan 05 17:30:33 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!lpopov
From: lpopov@u-tokyo.ac.jp (Liam Popov)
Newsgroups: comp.dsp
Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Jan05.173033.7085@u-tokyo.ac.jp>
Date: Thu, 05 Jan 1995 17:30:33 GMT
Organization: University of Tokyo Department of Information Science
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Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.

Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time.
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.

-- 
Liam Popov
Tape trading list upon request. SASE required for international mail.

From afournier@clari.net Sat Jan 07 15:21:33 1995
Path: ashpoly!cascade!brgate!saturno!clari!afournier
From: afournier@clari.net (Aiko Fournier)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Jan07.152133.9784@clari.net>
Date: Sat, 07 Jan 1995 15:21:33 GMT
References: <1995Jan05.173033.7085@u-tokyo.ac.jp>
Organization: ClariNet Communications Corp
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In article <1995Jan05.173033.7085@u-tokyo.ac.jp>, lpopov@u-tokyo.ac.jp (Liam Popov) writes:
> Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.
> Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time.

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

-- 
=== Aiko Fournier ===
Dept of Electrical Engineering, ClariNet Communications Corp
"Marcus is not one man."