From dnakamura@earthlink.net Fri Dec 22 13:39:07 1995 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!dnakamura From: dnakamura@earthlink.net (Dong-hyun Nakamura) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec22.133907.2034@earthlink.net> Date: Fri, 22 Dec 1995 13:39:07 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 11 Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Dong-hyun Nakamura *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0 From mmartinez@uni-hamburg.de Sat Dec 23 08:52:07 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uni-hamburg!mmartinez From: mmartinez@uni-hamburg.de (Mei Martínez) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec23.085207.4368@uni-hamburg.de> Date: Sat, 23 Dec 1995 08:52:07 GMT References: <1995Dec22.133907.2034@earthlink.net> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Dec22.133907.2034@earthlink.net>, dnakamura@earthlink.net (Dong-hyun Nakamura) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. > Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Mei Martínez Opinions expressed are solely my own and not those of Universität Hamburg Fachbereich Informatik. ------------------------------------------------------------ From arobertson@hanse.de Sun Dec 24 05:22:07 1995 Path: ashpoly!cascade!transat!ukc!fennimore!hanse!arobertson From: arobertson@hanse.de (Aiko Robertson) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec24.052207.2149@hanse.de> Date: Sun, 24 Dec 1995 05:22:07 GMT References: <1995Dec22.133907.2034@earthlink.net> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Dec22.133907.2034@earthlink.net>, dnakamura@earthlink.net (Dong-hyun Nakamura) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Aiko Robertson *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From schoi@pipeline.com Mon Dec 25 11:46:07 1995 Path: ashpoly!cascade!mxgate!coyoacan!pipeline!schoi From: schoi@pipeline.com (Seo-yeon Choi) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec25.114607.4383@pipeline.com> Date: Mon, 25 Dec 1995 11:46:07 GMT References: <1995Dec22.133907.2034@earthlink.net> <1995Dec24.052207.2149@hanse.de> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Dec24.052207.2149@hanse.de>, arobertson@hanse.de (Aiko Robertson) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Seo-yeon Choi US Robotics Courier V.34 @ 14,400 bps "A soul is not exclusive to biology." From brodriguez@berkeley.edu Tue Dec 26 20:15:07 1995 Path: ashpoly!cascade!mxgate!coyoacan!berkeley!brodriguez From: brodriguez@berkeley.edu (Bastien Rodríguez) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec26.201507.8206@berkeley.edu> Date: Tue, 26 Dec 1995 20:15:07 GMT References: <1995Dec22.133907.2034@earthlink.net> <1995Dec24.052207.2149@hanse.de> <1995Dec25.114607.4383@pipeline.com> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Dec25.114607.4383@pipeline.com>, schoi@pipeline.com (Seo-yeon Choi) writes: > Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- === Bastien Rodríguez === Dept of Electrical Engineering, UC Berkeley Department of EECS "Row 14. No joke."