From sschneider@cmu.edu Mon Mar 20 05:30:14 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cmu!sschneider From: sschneider@cmu.edu (Seo-yeon Schneider) Newsgroups: comp.dsp Subject: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar20.053014.1190@cmu.edu> Date: Mon, 20 Mar 1995 05:30:14 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N 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. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- === Seo-yeon Schneider === Dept of Electrical Engineering, Carnegie Mellon University School of CS "In theory there is no difference between theory and practice." From ekim@pacbell.net Mon Mar 20 21:20:14 1995 Path: ashpoly!cascade!brgate!saturno!pacbell!ekim From: ekim@pacbell.net (Elaine Kim) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar20.212014.7741@pacbell.net> Date: Mon, 20 Mar 1995 21:20:14 GMT References: <1995Mar20.053014.1190@cmu.edu> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar20.053014.1190@cmu.edu>, sschneider@cmu.edu (Seo-yeon Schneider) 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 Kim | ekim@pacbell.net PGP Key fingerprint: D420 F523 8F39 0F79 "Keep the channels open." From rsantos@panix.com Wed Mar 22 00:39:14 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!panix!rsantos From: rsantos@panix.com (Raj Santos) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar22.003914.7893@panix.com> Date: Wed, 22 Mar 1995 00:39:14 GMT References: <1995Mar20.053014.1190@cmu.edu> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Mar20.053014.1190@cmu.edu>, sschneider@cmu.edu (Seo-yeon Schneider) writes: > 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. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Raj Santos *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From jcampbell@rwth-aachen.de Fri Mar 24 00:21:14 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!rwth-aachen!jcampbell From: jcampbell@rwth-aachen.de (Joachim Campbell) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar24.002114.8659@rwth-aachen.de> Date: Fri, 24 Mar 1995 00:21:14 GMT References: <1995Mar20.053014.1190@cmu.edu> <1995Mar22.003914.7893@panix.com> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar22.003914.7893@panix.com>, rsantos@panix.com (Raj Santos) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Can you provide a pre-compiled DOS binary? Some of us don't have Linux or a C compiler installed on our machines. -- Joachim Campbell Opinions expressed are solely my own and not those of RWTH Aachen Informatik. ------------------------------------------------------------ From efournier@titech.ac.jp Sat Mar 25 22:59:14 1995 Path: ashpoly!cascade!bigsur!titech!efournier From: efournier@titech.ac.jp (Élodie Fournier) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar25.225914.2425@titech.ac.jp> Date: Sat, 25 Mar 1995 22:59:14 GMT References: <1995Mar20.053014.1190@cmu.edu> <1995Mar22.003914.7893@panix.com> <1995Mar24.002114.8659@rwth-aachen.de> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar24.002114.8659@rwth-aachen.de>, jcampbell@rwth-aachen.de (Joachim Campbell) writes: > Can you provide a pre-compiled DOS binary? Some of us don't have Linux or a C compiler installed on our machines. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Élodie Fournier | efournier@titech.ac.jp PGP Key fingerprint: 5CC4 097D 5F79 FC66 "Keep the channels open."