From ngarcia@rwth-aachen.de Fri Nov 11 08:54:29 1994 Path: ashpoly!cascade!mxgate!coyoacan!rwth-aachen!ngarcia From: ngarcia@rwth-aachen.de (Natalia García) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Nov11.085429.1217@rwth-aachen.de> Date: Fri, 11 Nov 1994 08:54:29 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de 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. 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. -- Natalia García *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From dandersson@earthlink.net Sun Nov 13 07:03:29 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!earthlink!dandersson From: dandersson@earthlink.net (Diego Andersson) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Nov13.070329.6127@earthlink.net> Date: Sun, 13 Nov 1994 07:03:29 GMT References: <1994Nov11.085429.1217@rwth-aachen.de> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Nov11.085429.1217@rwth-aachen.de>, ngarcia@rwth-aachen.de (Natalia García) 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! -- Diego Andersson *PLONK* filter active for trolls. 486DX4/100 (FreeBSD 2.0.5) - NetBSD 1.0 From mkim@inria.fr Sun Nov 13 15:29:29 1994 Path: ashpoly!cascade!bigsur!inria!mkim From: mkim@inria.fr (Mateo Kim) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Nov13.152929.2419@inria.fr> Date: Sun, 13 Nov 1994 15:29:29 GMT References: <1994Nov11.085429.1217@rwth-aachen.de> <1994Nov13.070329.6127@earthlink.net> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Nov13.070329.6127@earthlink.net>, dandersson@earthlink.net (Diego Andersson) 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! -- === Mateo Kim === Dept of Electrical Engineering, INRIA Rocquencourt "Measuring a record you own is listening, not piracy." From kivanov@pacbell.net Tue Nov 15 12:15:29 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!kivanov From: kivanov@pacbell.net (Katrin Ivanov) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Nov15.121529.6039@pacbell.net> Date: Tue, 15 Nov 1994 12:15:29 GMT References: <1994Nov11.085429.1217@rwth-aachen.de> <1994Nov13.070329.6127@earthlink.net> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Nov13.070329.6127@earthlink.net>, dandersson@earthlink.net (Diego Andersson) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! -- Katrin Ivanov *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0 From tgonzalez@unam.mx Tue Nov 15 19:14:29 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!unam!tgonzalez From: tgonzalez@unam.mx (Tyler González) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Nov15.191429.1311@unam.mx> Date: Tue, 15 Nov 1994 19:14:29 GMT References: <1994Nov11.085429.1217@rwth-aachen.de> <1994Nov13.070329.6127@earthlink.net> <1994Nov13.152929.2419@inria.fr> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Nov13.152929.2419@inria.fr>, mkim@inria.fr (Mateo Kim) 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. -- === Tyler González === Dept of Electrical Engineering, Universidad Nacional Autónoma de México (DGSCA) "Do not worship the copy."