From brobertson@cern.ch Tue Mar 21 02:53:41 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cern!brobertson From: brobertson@cern.ch (Bruno Robertson) Newsgroups: comp.dsp Subject: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar21.025341.2366@cern.ch> Date: Tue, 21 Mar 1995 02:53:41 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 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. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Bruno Robertson Zyxel U-1496E @ 28,800 bps "We don't sign stars. We build them." From nivanov@uni-hamburg.de Thu Mar 23 01:24:41 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!nivanov From: nivanov@uni-hamburg.de (Nadine Ivanov) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar23.012441.3733@uni-hamburg.de> Date: Thu, 23 Mar 1995 01:24:41 GMT References: <1995Mar21.025341.2366@cern.ch> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Mar21.025341.2366@cern.ch>, brobertson@cern.ch (Bruno Robertson) 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. -- Nadine Ivanov Tape trading list upon request. SASE required for international mail. From bnilsson@mit.edu Fri Mar 24 23:06:41 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mit!bnilsson From: bnilsson@mit.edu (Bastien Nilsson) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar24.230641.6802@mit.edu> Date: Fri, 24 Mar 1995 23:06:41 GMT References: <1995Mar21.025341.2366@cern.ch> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Mar21.025341.2366@cern.ch>, brobertson@cern.ch (Bruno Robertson) 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! -- === Bastien Nilsson === Dept of Electrical Engineering, Massachusetts Institute of Technology "Do not worship the copy." From mcampbell@kth.se Sat Mar 25 20:14:41 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kth!mcampbell From: mcampbell@kth.se (Mathieu Campbell) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Mar25.201441.2544@kth.se> Date: Sat, 25 Mar 1995 20:14:41 GMT References: <1995Mar21.025341.2366@cern.ch> <1995Mar24.230641.6802@mit.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Mar24.230641.6802@mit.edu>, bnilsson@mit.edu (Bastien Nilsson) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus? -- Mathieu Campbell -- Royal Institute of Technology, Stockholm "We don't sign stars. We build them."