From dito@mit.edu Wed Sep 13 12:13:28 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!mit!dito From: dito@mit.edu (Diego Ito) Newsgroups: comp.dsp Subject: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep13.121328.7894@mit.edu> Date: Wed, 13 Sep 1995 12:13:28 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops. 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! -- Diego Ito -- Massachusetts Institute of Technology "Do not worship the copy." From tivanov@hanse.de Fri Sep 15 14:11:28 1995 Path: ashpoly!cascade!bigsur!hanse!tivanov From: tivanov@hanse.de (Tobias Ivanov) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep15.141128.5563@hanse.de> Date: Fri, 15 Sep 1995 14:11:28 GMT References: <1995Sep13.121328.7894@mit.edu> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1995Sep13.121328.7894@mit.edu>, dito@mit.edu (Diego Ito) writes: > Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops. > Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Tobias Ivanov "There are 14 nodes and only 10 countries. Count again." Macintosh IIfx / Linux 1.2.13 From tlarsson@berkeley.edu Sat Sep 16 01:40:28 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!berkeley!tlarsson From: tlarsson@berkeley.edu (Takeshi Larsson) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep16.014028.7060@berkeley.edu> Date: Sat, 16 Sep 1995 01:40:28 GMT References: <1995Sep13.121328.7894@mit.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Sep13.121328.7894@mit.edu>, dito@mit.edu (Diego Ito) writes: > Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! PGP Public key available via finger or upon request. -- Takeshi Larsson -- UC Berkeley Department of EECS "There are 14 nodes and only 10 countries. Count again." From mkarlsson@cern.ch Sat Sep 16 14:26:28 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cern!mkarlsson From: mkarlsson@cern.ch (Mateo Karlsson) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep16.142628.1995@cern.ch> Date: Sat, 16 Sep 1995 14:26:28 GMT References: <1995Sep13.121328.7894@mit.edu> <1995Sep15.141128.5563@hanse.de> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Sep15.141128.5563@hanse.de>, tivanov@hanse.de (Tobias Ivanov) writes: > Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Mateo Karlsson Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva. ------------------------------------------------------------