From owatanabe@cmu.edu Fri Jan 20 06:58:31 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!owatanabe
From: owatanabe@cmu.edu (Olga Watanabe)
Newsgroups: comp.dsp
Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Jan20.065831.6519@cmu.edu>
Date: Fri, 20 Jan 1995 06:58:31 GMT
Organization: Carnegie Mellon University School of CS
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Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results.

Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings.
Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.

We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings!

-- 
Olga Watanabe
Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS.
------------------------------------------------------------

From pandersson@tum.de Sat Jan 21 12:41:31 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!pandersson
From: pandersson@tum.de (Pavel Andersson)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Jan21.124131.3605@tum.de>
Date: Sat, 21 Jan 1995 12:41:31 GMT
References: <1995Jan20.065831.6519@cmu.edu>
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In article <1995Jan20.065831.6519@cmu.edu>, owatanabe@cmu.edu (Olga Watanabe) writes:
> Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results.
> Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings.

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

-- 
Pavel Andersson
Tape trading list upon request. SASE required for international mail.

From akarlsson@panix.com Sun Jan 22 00:25:31 1995
Path: ashpoly!cascade!brgate!saturno!panix!akarlsson
From: akarlsson@panix.com (Anja Karlsson)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Jan22.002531.1604@panix.com>
Date: Sun, 22 Jan 1995 00:25:31 GMT
References: <1995Jan20.065831.6519@cmu.edu> <1995Jan21.124131.3605@tum.de>
Organization: Public Access Unix of New York
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In article <1995Jan21.124131.3605@tum.de>, pandersson@tum.de (Pavel Andersson) 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.

-- 
Anja Karlsson -- Public Access Unix of New York
"A soul is not exclusive to biology."

From emacdonald@demon.co.uk Mon Jan 23 06:29:31 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!demon!emacdonald
From: emacdonald@demon.co.uk (Emi MacDonald)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Jan23.062931.9963@demon.co.uk>
Date: Mon, 23 Jan 1995 06:29:31 GMT
References: <1995Jan20.065831.6519@cmu.edu> <1995Jan21.124131.3605@tum.de> <1995Jan22.002531.1604@panix.com>
Organization: Demon Internet Services UK
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In article <1995Jan22.002531.1604@panix.com>, akarlsson@panix.com (Anja Karlsson) writes:
> Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy.

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

-- 
Emi MacDonald
Tape trading list upon request. SASE required for international mail.