From jpopov@cam.ac.uk Sun Feb 13 20:49:38 1994 Path: ashpoly!cascade!mxgate!coyoacan!cam!jpopov From: jpopov@cam.ac.uk (Joachim Popov) Newsgroups: comp.dsp Subject: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb13.204938.4606@cam.ac.uk> Date: Sun, 13 Feb 1994 20:49:38 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk 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. -- Joachim Popov "Do not worship the copy." PC-9821Ap2 (NEC) / NEXTSTEP 3.3 From aramirez@earthlink.net Mon Feb 14 13:12:38 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!earthlink!aramirez From: aramirez@earthlink.net (Anton Ramírez) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb14.131238.5134@earthlink.net> Date: Mon, 14 Feb 1994 13:12:38 GMT References: <1994Feb13.204938.4606@cam.ac.uk> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Feb13.204938.4606@cam.ac.uk>, jpopov@cam.ac.uk (Joachim Popov) 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. -- Anton Ramírez Opinions expressed are solely my own and not those of EarthLink Network. ------------------------------------------------------------ From bmoreau@rwth-aachen.de Tue Feb 15 22:49:38 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!rwth-aachen!bmoreau From: bmoreau@rwth-aachen.de (Bruno Moreau) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb15.224938.4893@rwth-aachen.de> Date: Tue, 15 Feb 1994 22:49:38 GMT References: <1994Feb13.204938.4606@cam.ac.uk> <1994Feb14.131238.5134@earthlink.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1994Feb14.131238.5134@earthlink.net>, aramirez@earthlink.net (Anton Ramírez) writes: > Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus? -- Bruno Moreau Tape trading list upon request. SASE required for international mail. From tfournier@netcom.com Fri Feb 18 00:28:38 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!netcom!tfournier From: tfournier@netcom.com (Thiago Fournier) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb18.002838.4303@netcom.com> Date: Fri, 18 Feb 1994 00:28:38 GMT References: <1994Feb13.204938.4606@cam.ac.uk> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Feb13.204938.4606@cam.ac.uk>, jpopov@cam.ac.uk (Joachim Popov) 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! -- Thiago Fournier Practical Peripherals 14.4 @ ISDN 64k bps "Tape doesn't lie at 02:14. Ears do."