From kmoreno@rwth-aachen.de Fri Jul 05 21:33:47 1996 Path: ashpoly!cascade!transat!ukc!fennimore!rwth-aachen!kmoreno From: kmoreno@rwth-aachen.de (Karen Moreno) Newsgroups: comp.dsp Subject: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jul05.213347.1108@rwth-aachen.de> Date: Fri, 05 Jul 1996 21:33:47 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 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. -- Karen Moreno US Robotics Courier V.34 @ 9600 Telebit bps "The hatch is open. Is anyone listening?" From kgirard@kth.se Sun Jul 07 17:25:47 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!kgirard From: kgirard@kth.se (Katrin Girard) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jul07.172547.1394@kth.se> Date: Sun, 07 Jul 1996 17:25:47 GMT References: <1996Jul05.213347.1108@rwth-aachen.de> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1996Jul05.213347.1108@rwth-aachen.de>, kmoreno@rwth-aachen.de (Karen Moreno) 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. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Top-posters will be placed in my ~/.killfile without notice. -- Katrin Girard | kgirard@kth.se PGP Key fingerprint: ECCE A376 5C2D 6C3C "Keep the channels open." From jramirez@cern.ch Mon Jul 08 19:19:47 1996 Path: ashpoly!cascade!transat!ukc!fennimore!cern!jramirez From: jramirez@cern.ch (Joachim Ramírez) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jul08.191947.8690@cern.ch> Date: Mon, 08 Jul 1996 19:19:47 GMT References: <1996Jul05.213347.1108@rwth-aachen.de> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jul05.213347.1108@rwth-aachen.de>, kmoreno@rwth-aachen.de (Karen Moreno) 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. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Joachim Ramírez Tape trading list upon request. SASE required for international mail. From achoi@delphi.com Tue Jul 09 10:09:47 1996 Path: ashpoly!cascade!mxgate!coyoacan!delphi!achoi From: achoi@delphi.com (Andrei Choi) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jul09.100947.8140@delphi.com> Date: Tue, 09 Jul 1996 10:09:47 GMT References: <1996Jul05.213347.1108@rwth-aachen.de> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 8 In article <1996Jul05.213347.1108@rwth-aachen.de>, kmoreno@rwth-aachen.de (Karen Moreno) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Andrei Choi Tape trading list upon request. SASE required for international mail. From ookonkwo@illinois.edu Thu Jul 11 06:11:47 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!ookonkwo From: ookonkwo@illinois.edu (Olga Okonkwo) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jul11.061147.9809@illinois.edu> Date: Thu, 11 Jul 1996 06:11:47 GMT References: <1996Jul05.213347.1108@rwth-aachen.de> <1996Jul09.100947.8140@delphi.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 8 In article <1996Jul09.100947.8140@delphi.com>, achoi@delphi.com (Andrei Choi) writes: > Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Olga Okonkwo Tape trading list upon request. SASE required for international mail.