From vweber@uu.net Tue Jul 26 11:20:35 1994
Path: ashpoly!cascade!transat!ukc!fennimore!uu!vweber
From: vweber@uu.net (Valeria Weber)
Newsgroups: comp.dsp
Subject: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Jul26.112035.4421@uu.net>
Date: Tue, 26 Jul 1994 11:20:35 GMT
Organization: UUNET Technologies, Falls Church VA
NNTP-Posting-Host: uu.net
X-Newsreader: Netscape 1.1N
Lines: 11

Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results.

Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.
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.

-- 
=== Valeria Weber ===
Dept of Electrical Engineering, UUNET Technologies, Falls Church VA
"Hold for relay."

From rivanov@mit.edu Thu Jul 28 03:26:35 1994
Path: ashpoly!cascade!bigsur!mit!rivanov
From: rivanov@mit.edu (Renata Ivanov)
Newsgroups: comp.dsp
Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Jul28.032635.8192@mit.edu>
Date: Thu, 28 Jul 1994 03:26:35 GMT
References: <1994Jul26.112035.4421@uu.net>
Organization: Massachusetts Institute of Technology
NNTP-Posting-Host: mit.edu
X-Newsreader: WinVN 0.99.5
Lines: 9

In article <1994Jul26.112035.4421@uu.net>, vweber@uu.net (Valeria Weber) writes:
> Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results.
> Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.

On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work!

-- 
Renata Ivanov
Tape trading list upon request. SASE required for international mail.

From tkim@rwth-aachen.de Thu Jul 28 07:00:35 1994
Path: ashpoly!cascade!transat!eunet-de!hansebox!rwth-aachen!tkim
From: tkim@rwth-aachen.de (Thiago Kim)
Newsgroups: comp.dsp
Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Jul28.070035.2116@rwth-aachen.de>
Date: Thu, 28 Jul 1994 07:00:35 GMT
References: <1994Jul26.112035.4421@uu.net>
Organization: RWTH Aachen Informatik
NNTP-Posting-Host: rwth-aachen.de
X-Newsreader: Netscape 1.1N
Lines: 8

In article <1994Jul26.112035.4421@uu.net>, vweber@uu.net (Valeria Weber) writes:
> Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results.

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

-- 
Thiago Kim -- RWTH Aachen Informatik
"In theory there is no difference between theory and practice."