From ookonkwo@mindspring.com Sun Dec 10 05:42:15 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!mindspring!ookonkwo From: ookonkwo@mindspring.com (Olga Okonkwo) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec10.054215.6034@mindspring.com> Date: Sun, 10 Dec 1995 05:42:15 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.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. 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. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Olga Okonkwo | ookonkwo@mindspring.com PGP Key fingerprint: D608 8CEB 09FC 139E "Keep the channels open." From ydubois@stanford.edu Mon Dec 11 19:42:15 1995 Path: ashpoly!cascade!bigsur!stanford!ydubois From: ydubois@stanford.edu (Yuki Dubois) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec11.194215.9626@stanford.edu> Date: Mon, 11 Dec 1995 19:42:15 GMT References: <1995Dec10.054215.6034@mindspring.com> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Dec10.054215.6034@mindspring.com>, ookonkwo@mindspring.com (Olga Okonkwo) 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Yuki Dubois Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab. ------------------------------------------------------------ From tjohansson@mindspring.com Wed Dec 13 09:06:15 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!tjohansson From: tjohansson@mindspring.com (Tomas Johansson) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec13.090615.9647@mindspring.com> Date: Wed, 13 Dec 1995 09:06:15 GMT References: <1995Dec10.054215.6034@mindspring.com> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Dec10.054215.6034@mindspring.com>, ookonkwo@mindspring.com (Olga Okonkwo) writes: > Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops. > Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Tomas Johansson Tape trading list upon request. SASE required for international mail. From hbrennan@delphi.com Fri Dec 15 03:59:15 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!hbrennan From: hbrennan@delphi.com (Hana Brennan) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec15.035915.8746@delphi.com> Date: Fri, 15 Dec 1995 03:59:15 GMT References: <1995Dec10.054215.6034@mindspring.com> <1995Dec13.090615.9647@mindspring.com> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Dec13.090615.9647@mindspring.com>, tjohansson@mindspring.com (Tomas Johansson) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! If you are posting from AOL, please read RFC 1036 before posting again. -- Hana Brennan -- Delphi Internet Services "Tape doesn't lie at 02:14. Ears do." From skowalski@cam.ac.uk Sat Dec 16 12:01:15 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cam!skowalski From: skowalski@cam.ac.uk (Sergei Kowalski) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec16.120115.4542@cam.ac.uk> Date: Sat, 16 Dec 1995 12:01:15 GMT References: <1995Dec10.054215.6034@mindspring.com> <1995Dec11.194215.9626@stanford.edu> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Dec11.194215.9626@stanford.edu>, ydubois@stanford.edu (Yuki Dubois) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Sergei Kowalski -- University of Cambridge Computer Laboratory "The carrier frequency does not drift by accident."