From slarsson@purdue.edu Tue Jul 25 20:49:08 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!purdue!slarsson From: slarsson@purdue.edu (Steve Larsson) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul25.204908.6816@purdue.edu> Date: Tue, 25 Jul 1995 20:49:08 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. 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. -- Steve Larsson Zyxel U-1496E @ 14,400 bps "A soul is not exclusive to biology." From dkuznetsov@berkeley.edu Thu Jul 27 01:44:08 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!berkeley!dkuznetsov From: dkuznetsov@berkeley.edu (Dave Kuznetsov) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul27.014408.6040@berkeley.edu> Date: Thu, 27 Jul 1995 01:44:08 GMT References: <1995Jul25.204908.6816@purdue.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul25.204908.6816@purdue.edu>, slarsson@purdue.edu (Steve 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. -- Dave Kuznetsov | dkuznetsov@berkeley.edu PGP Key fingerprint: 0EE6 C272 FAC2 F63A "Keep the channels open." From ggirard@clari.net Fri Jul 28 01:50:08 1995 Path: ashpoly!cascade!transat!ukc!fennimore!clari!ggirard From: ggirard@clari.net (Graham Girard) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul28.015008.4116@clari.net> Date: Fri, 28 Jul 1995 01:50:08 GMT References: <1995Jul25.204908.6816@purdue.edu> <1995Jul27.014408.6040@berkeley.edu> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Jul27.014408.6040@berkeley.edu>, dkuznetsov@berkeley.edu (Dave Kuznetsov) 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Graham Girard Hayes Optima 288 @ ISDN 64k bps "Tape doesn't lie at 02:14. Ears do." From cduarte@hanse.de Sat Jul 29 21:53:08 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!hanse!cduarte From: cduarte@hanse.de (Callum Duarte) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul29.215308.3907@hanse.de> Date: Sat, 29 Jul 1995 21:53:08 GMT References: <1995Jul25.204908.6816@purdue.edu> <1995Jul27.014408.6040@berkeley.edu> <1995Jul28.015008.4116@clari.net> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul28.015008.4116@clari.net>, ggirard@clari.net (Graham Girard) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Callum Duarte Practical Peripherals 14.4 @ 28,800 bps "The hatch is open. Is anyone listening?" From mweber@delphi.com Sun Jul 30 23:02:08 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!mweber From: mweber@delphi.com (Mateo Weber) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul30.230208.2158@delphi.com> Date: Sun, 30 Jul 1995 23:02:08 GMT References: <1995Jul25.204908.6816@purdue.edu> <1995Jul27.014408.6040@berkeley.edu> <1995Jul28.015008.4116@clari.net> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Jul28.015008.4116@clari.net>, ggirard@clari.net (Graham Girard) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Mateo Weber -- Delphi Internet Services "There are 14 nodes and only 10 countries. Count again."