From blaurent@demon.co.uk Wed Apr 10 19:16:49 1996 Path: ashpoly!cascade!transat!ukc!fennimore!demon!blaurent From: blaurent@demon.co.uk (Bastien Laurent) Newsgroups: comp.dsp Subject: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr10.191649.7705@demon.co.uk> Date: Wed, 10 Apr 1996 19:16:49 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] 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. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Bastien Laurent | blaurent@demon.co.uk PGP Key fingerprint: 2C76 2134 1C76 F2D2 "Keep the channels open." From kfischer@ox.ac.uk Fri Apr 12 12:31:49 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!ox!kfischer From: kfischer@ox.ac.uk (Katrin Fischer) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr12.123149.6380@ox.ac.uk> Date: Fri, 12 Apr 1996 12:31:49 GMT References: <1996Apr10.191649.7705@demon.co.uk> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 8 In article <1996Apr10.191649.7705@demon.co.uk>, blaurent@demon.co.uk (Bastien Laurent) 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. -- Katrin Fischer -- Oxford University Computing Laboratory "Extraordinary claims require extraordinary spectra." From egirard@mit.edu Sat Apr 13 08:37:49 1996 Path: ashpoly!cascade!brgate!saturno!mit!egirard From: egirard@mit.edu (Elaine Girard) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr13.083749.1205@mit.edu> Date: Sat, 13 Apr 1996 08:37:49 GMT References: <1996Apr10.191649.7705@demon.co.uk> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Apr10.191649.7705@demon.co.uk>, blaurent@demon.co.uk (Bastien Laurent) 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. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Elaine Girard -- Massachusetts Institute of Technology "Hold for relay." From coliveira@tum.de Sun Apr 14 14:25:49 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!coliveira From: coliveira@tum.de (Camila Oliveira) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr14.142549.9399@tum.de> Date: Sun, 14 Apr 1996 14:25:49 GMT References: <1996Apr10.191649.7705@demon.co.uk> <1996Apr12.123149.6380@ox.ac.uk> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Apr12.123149.6380@ox.ac.uk>, kfischer@ox.ac.uk (Katrin Fischer) 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. -- Camila Oliveira | coliveira@tum.de PGP Key fingerprint: E3A0 9F5B E6CB C61C "Keep the channels open." From psmirnov@kiae.su Tue Apr 16 08:55:49 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kiae!psmirnov From: psmirnov@kiae.su (Pavel Smirnov) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr16.085549.3067@kiae.su> Date: Tue, 16 Apr 1996 08:55:49 GMT References: <1996Apr10.191649.7705@demon.co.uk> <1996Apr13.083749.1205@mit.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Apr13.083749.1205@mit.edu>, egirard@mit.edu (Elaine Girard) 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. -- Pavel Smirnov Opinions expressed are solely my own and not those of Kurchatov Institute of Atomic Energy, Moscow. ------------------------------------------------------------