From elarsson@netcom.com Wed Apr 05 10:23:36 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!elarsson From: elarsson@netcom.com (Elaine Larsson) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr05.102336.8238@netcom.com> Date: Wed, 05 Apr 1995 10:23:36 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 11 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. Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser. -- Elaine Larsson "In theory there is no difference between theory and practice." Atari Falcon 030 / Linux 1.2.13 From gnakamura@cam.ac.uk Fri Apr 07 06:01:36 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cam!gnakamura From: gnakamura@cam.ac.uk (Göran Nakamura) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr07.060136.5386@cam.ac.uk> Date: Fri, 07 Apr 1995 06:01:36 GMT References: <1995Apr05.102336.8238@netcom.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Apr05.102336.8238@netcom.com>, elarsson@netcom.com (Elaine Larsson) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. 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. -- Göran Nakamura Tape trading list upon request. SASE required for international mail. From skim@berkeley.edu Sun Apr 09 08:13:36 1995 Path: ashpoly!cascade!bigsur!berkeley!skim From: skim@berkeley.edu (Sergei Kim) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr09.081336.3621@berkeley.edu> Date: Sun, 09 Apr 1995 08:13:36 GMT References: <1995Apr05.102336.8238@netcom.com> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Apr05.102336.8238@netcom.com>, elarsson@netcom.com (Elaine Larsson) 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. -- === Sergei Kim === Dept of Electrical Engineering, UC Berkeley Department of EECS "A soul is not exclusive to biology." From mcampbell@mit.edu Tue Apr 11 05:49:36 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!mcampbell From: mcampbell@mit.edu (Min-jun Campbell) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr11.054936.6298@mit.edu> Date: Tue, 11 Apr 1995 05:49:36 GMT References: <1995Apr05.102336.8238@netcom.com> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Apr05.102336.8238@netcom.com>, elarsson@netcom.com (Elaine Larsson) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Can you provide a pre-compiled DOS binary? Some of us don't have Linux or a C compiler installed on our machines. -- Min-jun Campbell "Measuring a record you own is listening, not piracy." Amiga 3000T / Linux 1.2.13 From toliveira@mit.edu Wed Apr 12 02:07:36 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!mit!toliveira From: toliveira@mit.edu (Takeshi Oliveira) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Apr12.020736.5465@mit.edu> Date: Wed, 12 Apr 1995 02:07:36 GMT References: <1995Apr05.102336.8238@netcom.com> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Apr05.102336.8238@netcom.com>, elarsson@netcom.com (Elaine Larsson) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Takeshi Oliveira | toliveira@mit.edu PGP Key fingerprint: 3DB0 7E00 801B 37FC "Keep the channels open."