From jito@earthlink.net Tue Apr 11 05:22:36 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!earthlink!jito From: jito@earthlink.net (Joachim Ito) Newsgroups: comp.dsp Subject: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr11.052236.8879@earthlink.net> Date: Tue, 11 Apr 1995 05:22:36 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] 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. The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Joachim Ito Opinions expressed are solely my own and not those of EarthLink Network. ------------------------------------------------------------ From rreyes@rwth-aachen.de Wed Apr 12 18:23:36 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!rwth-aachen!rreyes From: rreyes@rwth-aachen.de (Renata Reyes) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr12.182336.4752@rwth-aachen.de> Date: Wed, 12 Apr 1995 18:23:36 GMT References: <1995Apr11.052236.8879@earthlink.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Apr11.052236.8879@earthlink.net>, jito@earthlink.net (Joachim Ito) 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. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Renata Reyes Hayes Optima 288 @ 33,600 bps "Row 14. No joke." From emoreno@berkeley.edu Wed Apr 12 21:34:36 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!emoreno From: emoreno@berkeley.edu (Elaine Moreno) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr12.213436.6512@berkeley.edu> Date: Wed, 12 Apr 1995 21:34:36 GMT References: <1995Apr11.052236.8879@earthlink.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Apr11.052236.8879@earthlink.net>, jito@earthlink.net (Joachim Ito) 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. -- === Elaine Moreno === Dept of Electrical Engineering, UC Berkeley Department of EECS "Do not worship the copy." From mpetrov@netcom.com Fri Apr 14 23:53:36 1995 Path: ashpoly!cascade!mxgate!coyoacan!netcom!mpetrov From: mpetrov@netcom.com (Mathieu Petrov) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr14.235336.4481@netcom.com> Date: Fri, 14 Apr 1995 23:53:36 GMT References: <1995Apr11.052236.8879@earthlink.net> <1995Apr12.182336.4752@rwth-aachen.de> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Apr12.182336.4752@rwth-aachen.de>, rreyes@rwth-aachen.de (Renata Reyes) 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. -- Mathieu Petrov "The hatch is open. Is anyone listening?" 486DX4/100 (FreeBSD 2.0.5) / AmigaOS 3.1 From jkowalski@berkeley.edu Mon Apr 17 01:40:36 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!berkeley!jkowalski From: jkowalski@berkeley.edu (Julien Kowalski) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr17.014036.3929@berkeley.edu> Date: Mon, 17 Apr 1995 01:40:36 GMT References: <1995Apr11.052236.8879@earthlink.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Apr11.052236.8879@earthlink.net>, jito@earthlink.net (Joachim Ito) 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. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Julien Kowalski "There are 14 nodes and only 10 countries. Count again." Sun SparcStation 20 / NEXTSTEP 3.3