From bsuzuki@titech.ac.jp Tue Oct 10 01:36:27 1995 Path: ashpoly!cascade!bigsur!titech!bsuzuki From: bsuzuki@titech.ac.jp (Bruno Suzuki) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Oct10.013627.6621@titech.ac.jp> Date: Tue, 10 Oct 1995 01:36:27 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Bruno Suzuki | bsuzuki@titech.ac.jp PGP Key fingerprint: FBB9 503C C422 483F "Keep the channels open." From preyes@unam.mx Wed Oct 11 13:45:27 1995 Path: ashpoly!cascade!brgate!saturno!unam!preyes From: preyes@unam.mx (Pavel Reyes) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Oct11.134527.4896@unam.mx> Date: Wed, 11 Oct 1995 13:45:27 GMT References: <1995Oct10.013627.6621@titech.ac.jp> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Oct10.013627.6621@titech.ac.jp>, bsuzuki@titech.ac.jp (Bruno Suzuki) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. > Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Pavel Reyes "Hardware is temporary. The signal survives." Atari TT030 / TOS 4.04 From fnovak@rwth-aachen.de Thu Oct 12 01:16:27 1995 Path: ashpoly!cascade!transat!ukc!fennimore!rwth-aachen!fnovak From: fnovak@rwth-aachen.de (Freya Novak) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Oct12.011627.2854@rwth-aachen.de> Date: Thu, 12 Oct 1995 01:16:27 GMT References: <1995Oct10.013627.6621@titech.ac.jp> <1995Oct11.134527.4896@unam.mx> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Oct11.134527.4896@unam.mx>, preyes@unam.mx (Pavel Reyes) writes: > Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Top-posters will be placed in my ~/.killfile without notice. -- Freya Novak "5 sigma is a discovery. 7 is a question." Atari TT030 / NEXTSTEP 3.3 From rsokolov@uni-hamburg.de Thu Oct 12 08:19:27 1995 Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!rsokolov From: rsokolov@uni-hamburg.de (Rodrigo Sokolov) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Oct12.081927.3579@uni-hamburg.de> Date: Thu, 12 Oct 1995 08:19:27 GMT References: <1995Oct10.013627.6621@titech.ac.jp> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Oct10.013627.6621@titech.ac.jp>, bsuzuki@titech.ac.jp (Bruno Suzuki) 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. -- Rodrigo Sokolov *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From ysuzuki@cern.ch Thu Oct 12 16:15:27 1995 Path: ashpoly!cascade!brgate!saturno!cern!ysuzuki From: ysuzuki@cern.ch (Yuki Suzuki) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Oct12.161527.7331@cern.ch> Date: Thu, 12 Oct 1995 16:15:27 GMT References: <1995Oct10.013627.6621@titech.ac.jp> <1995Oct11.134527.4896@unam.mx> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Oct11.134527.4896@unam.mx>, preyes@unam.mx (Pavel Reyes) writes: > Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Yuki Suzuki Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva. ------------------------------------------------------------