From afischer@rwth-aachen.de Wed Aug 09 00:46:21 1995 Path: ashpoly!cascade!bigsur!rwth-aachen!afischer From: afischer@rwth-aachen.de (Andrei Fischer) Newsgroups: comp.dsp Subject: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug09.004621.7763@rwth-aachen.de> Date: Wed, 09 Aug 1995 00:46:21 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N 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. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Andrei Fischer -- RWTH Aachen Informatik "When every node is whole, the channel opens." From jlaurent@unam.mx Thu Aug 10 22:51:21 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!unam!jlaurent From: jlaurent@unam.mx (Jen Laurent) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug10.225121.5510@unam.mx> Date: Thu, 10 Aug 1995 22:51:21 GMT References: <1995Aug09.004621.7763@rwth-aachen.de> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Aug09.004621.7763@rwth-aachen.de>, afischer@rwth-aachen.de (Andrei Fischer) 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! -- Jen Laurent Tape trading list upon request. SASE required for international mail. From ggonzalez@pacbell.net Fri Aug 11 19:58:21 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!pacbell!ggonzalez From: ggonzalez@pacbell.net (Göran González) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug11.195821.6579@pacbell.net> Date: Fri, 11 Aug 1995 19:58:21 GMT References: <1995Aug09.004621.7763@rwth-aachen.de> <1995Aug10.225121.5510@unam.mx> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug10.225121.5510@unam.mx>, jlaurent@unam.mx (Jen Laurent) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Göran González "Hardware is temporary. The signal survives." Sun 3/60 (SunOS 4.1.1) / SunOS 4.1.4 From bfournier@unam.mx Sun Aug 13 07:42:21 1995 Path: ashpoly!cascade!mxgate!coyoacan!unam!bfournier From: bfournier@unam.mx (Bastien Fournier) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug13.074221.4355@unam.mx> Date: Sun, 13 Aug 1995 07:42:21 GMT References: <1995Aug09.004621.7763@rwth-aachen.de> <1995Aug10.225121.5510@unam.mx> <1995Aug11.195821.6579@pacbell.net> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug11.195821.6579@pacbell.net>, ggonzalez@pacbell.net (Göran González) 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? -- Bastien Fournier Zyxel U-1496E @ ISDN 64k bps "Hold for relay." From bdubois@hanse.de Mon Aug 14 09:41:21 1995 Path: ashpoly!cascade!bigsur!hanse!bdubois From: bdubois@hanse.de (Brian Dubois) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug14.094121.2250@hanse.de> Date: Mon, 14 Aug 1995 09:41:21 GMT References: <1995Aug09.004621.7763@rwth-aachen.de> <1995Aug10.225121.5510@unam.mx> <1995Aug11.195821.6579@pacbell.net> <1995Aug13.074221.4355@unam.mx> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug13.074221.4355@unam.mx>, bfournier@unam.mx (Bastien Fournier) writes: > Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus? Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Brian Dubois "Do not worship the copy." PC-9821Ap2 (NEC) / AmigaOS 3.1