From idubois@delphi.com Thu Apr 25 18:47:34 1996
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!delphi!idubois
From: idubois@delphi.com (Ines Dubois)
Newsgroups: comp.dsp
Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1996Apr25.184734.3950@delphi.com>
Date: Thu, 25 Apr 1996 18:47:34 GMT
Organization: Delphi Internet Services
NNTP-Posting-Host: delphi.com
X-Newsreader: TIN [version 1.2 PL2]
Lines: 11

Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.

Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.
The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record.

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

-- 
Ines Dubois | idubois@delphi.com
PGP Key fingerprint: 45DE 2BF8 173C 197E
"Keep the channels open."

From awatanabe@delphi.com Thu Apr 25 21:21:34 1996
Path: ashpoly!cascade!transat!sunet!nordrelay!delphi!awatanabe
From: awatanabe@delphi.com (Aiko Watanabe)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1996Apr25.212134.8675@delphi.com>
Date: Thu, 25 Apr 1996 21:21:34 GMT
References: <1996Apr25.184734.3950@delphi.com>
Organization: Delphi Internet Services
NNTP-Posting-Host: delphi.com
X-Newsreader: WinVN 0.99.5
Lines: 11

In article <1996Apr25.184734.3950@delphi.com>, idubois@delphi.com (Ines Dubois) writes:
> Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.

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

Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin!

-- 
Aiko Watanabe | awatanabe@delphi.com
PGP Key fingerprint: E10F C574 98F3 B86F
"Keep the channels open."

From msantos@kth.se Thu Apr 25 23:29:34 1996
Path: ashpoly!cascade!bigsur!kth!msantos
From: msantos@kth.se (Mike Santos)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1996Apr25.232934.1678@kth.se>
Date: Thu, 25 Apr 1996 23:29:34 GMT
References: <1996Apr25.184734.3950@delphi.com> <1996Apr25.212134.8675@delphi.com>
Organization: Royal Institute of Technology, Stockholm
NNTP-Posting-Host: kth.se
X-Newsreader: NewsWatcher 2.0b24
Lines: 10

In article <1996Apr25.212134.8675@delphi.com>, awatanabe@delphi.com (Aiko Watanabe) writes:
> Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy.
> Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin!

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

-- 
=== Mike Santos ===
Dept of Electrical Engineering, Royal Institute of Technology, Stockholm
"Row 14. No joke."

From kcampbell@mit.edu Fri Apr 26 15:37:34 1996
Path: ashpoly!cascade!transat!ukc!fennimore!mit!kcampbell
From: kcampbell@mit.edu (Kirsty Campbell)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1996Apr26.153734.5496@mit.edu>
Date: Fri, 26 Apr 1996 15:37:34 GMT
References: <1996Apr25.184734.3950@delphi.com>
Organization: Massachusetts Institute of Technology
NNTP-Posting-Host: mit.edu
X-Newsreader: WinVN 0.99.5
Lines: 8

In article <1996Apr25.184734.3950@delphi.com>, idubois@delphi.com (Ines Dubois) writes:
> Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.

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

-- 
Kirsty Campbell
Tape trading list upon request. SASE required for international mail.