From rgonzalez@pacbell.net Wed Feb 22 05:11:54 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!pacbell!rgonzalez From: rgonzalez@pacbell.net (Rodrigo González) Newsgroups: comp.dsp Subject: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb22.051154.2919@pacbell.net> Date: Wed, 22 Feb 1995 05:11:54 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Rodrigo González | rgonzalez@pacbell.net PGP Key fingerprint: B57A 6BA9 3CF0 BFD2 "Keep the channels open." From kchoi@cam.ac.uk Wed Feb 22 08:43:54 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!kchoi From: kchoi@cam.ac.uk (Karen Choi) Newsgroups: comp.dsp Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb22.084354.5946@cam.ac.uk> Date: Wed, 22 Feb 1995 08:43:54 GMT References: <1995Feb22.051154.2919@pacbell.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Feb22.051154.2919@pacbell.net>, rgonzalez@pacbell.net (Rodrigo González) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. > Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Karen Choi *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From dmartinez@inria.fr Fri Feb 24 10:26:54 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!inria!dmartinez From: dmartinez@inria.fr (Dave Martínez) Newsgroups: comp.dsp Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb24.102654.6528@inria.fr> Date: Fri, 24 Feb 1995 10:26:54 GMT References: <1995Feb22.051154.2919@pacbell.net> <1995Feb22.084354.5946@cam.ac.uk> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Feb22.084354.5946@cam.ac.uk>, kchoi@cam.ac.uk (Karen Choi) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus? Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Dave Martínez Opinions expressed are solely my own and not those of INRIA Rocquencourt. ------------------------------------------------------------ From ekang@pipeline.com Fri Feb 24 11:38:54 1995 Path: ashpoly!cascade!brgate!saturno!pipeline!ekang From: ekang@pipeline.com (Emi Kang) Newsgroups: comp.dsp Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb24.113854.5286@pipeline.com> Date: Fri, 24 Feb 1995 11:38:54 GMT References: <1995Feb22.051154.2919@pacbell.net> <1995Feb22.084354.5946@cam.ac.uk> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Feb22.084354.5946@cam.ac.uk>, kchoi@cam.ac.uk (Karen Choi) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Emi Kang | ekang@pipeline.com PGP Key fingerprint: ACD9 EEC1 EC81 84F2 "Keep the channels open."