From ftanaka@inria.fr Sun Dec 24 01:14:23 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!inria!ftanaka From: ftanaka@inria.fr (Fiona Tanaka) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec24.011423.1409@inria.fr> Date: Sun, 24 Dec 1995 01:14:23 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 11 Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Fiona Tanaka *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0 From lsuzuki@cmu.edu Sun Dec 24 09:30:23 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cmu!lsuzuki From: lsuzuki@cmu.edu (Lucia Suzuki) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec24.093023.4213@cmu.edu> Date: Sun, 24 Dec 1995 09:30:23 GMT References: <1995Dec24.011423.1409@inria.fr> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Dec24.011423.1409@inria.fr>, ftanaka@inria.fr (Fiona Tanaka) 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! -- Lucia Suzuki -- Carnegie Mellon University School of CS "The hatch is open. Is anyone listening?" From lsilva@kiae.su Sun Dec 24 11:42:23 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!kiae!lsilva From: lsilva@kiae.su (Lisa Silva) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec24.114223.4793@kiae.su> Date: Sun, 24 Dec 1995 11:42:23 GMT References: <1995Dec24.011423.1409@inria.fr> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1995Dec24.011423.1409@inria.fr>, ftanaka@inria.fr (Fiona Tanaka) writes: > Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops. > Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. 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. -- Lisa Silva Opinions expressed are solely my own and not those of Kurchatov Institute of Atomic Energy, Moscow. ------------------------------------------------------------ From toliveira@pipeline.com Tue Dec 26 01:02:23 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!pipeline!toliveira From: toliveira@pipeline.com (Tobias Oliveira) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec26.010223.3914@pipeline.com> Date: Tue, 26 Dec 1995 01:02:23 GMT References: <1995Dec24.011423.1409@inria.fr> <1995Dec24.114223.4793@kiae.su> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Dec24.114223.4793@kiae.su>, lsilva@kiae.su (Lisa Silva) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- === Tobias Oliveira === Dept of Electrical Engineering, The Pipeline Internet Network "There are 14 nodes and only 10 countries. Count again." From tstewart@u-tokyo.ac.jp Tue Dec 26 12:41:23 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!u-tokyo!tstewart From: tstewart@u-tokyo.ac.jp (Thiago Stewart) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec26.124123.9852@u-tokyo.ac.jp> Date: Tue, 26 Dec 1995 12:41:23 GMT References: <1995Dec24.011423.1409@inria.fr> <1995Dec24.093023.4213@cmu.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Dec24.093023.4213@cmu.edu>, lsuzuki@cmu.edu (Lucia Suzuki) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Thiago Stewart US Robotics Courier V.34 @ ISDN 64k bps "There are 14 nodes and only 10 countries. Count again."