From mramirez@stanford.edu Fri Apr 08 14:51:36 1994 Path: ashpoly!cascade!mxgate!coyoacan!stanford!mramirez From: mramirez@stanford.edu (Morag Ramírez) Newsgroups: comp.dsp Subject: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr08.145136.7101@stanford.edu> Date: Fri, 08 Apr 1994 14:51:36 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] 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. The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Morag Ramírez Tape trading list upon request. SASE required for international mail. From ochoi@uu.net Sat Apr 09 05:05:36 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!uu!ochoi From: ochoi@uu.net (Olga Choi) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr09.050536.6349@uu.net> Date: Sat, 09 Apr 1994 05:05:36 GMT References: <1994Apr08.145136.7101@stanford.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Apr08.145136.7101@stanford.edu>, mramirez@stanford.edu (Morag Ramírez) 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. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Olga Choi *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From agarcia@demon.co.uk Mon Apr 11 00:41:36 1994 Path: ashpoly!cascade!bigsur!demon!agarcia From: agarcia@demon.co.uk (Andrei García) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr11.004136.1001@demon.co.uk> Date: Mon, 11 Apr 1994 00:41:36 GMT References: <1994Apr08.145136.7101@stanford.edu> <1994Apr09.050536.6349@uu.net> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Apr09.050536.6349@uu.net>, ochoi@uu.net (Olga Choi) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Andrei García Tape trading list upon request. SASE required for international mail. From agonzalez@tum.de Mon Apr 11 08:42:36 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!agonzalez From: agonzalez@tum.de (Astrid González) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr11.084236.3133@tum.de> Date: Mon, 11 Apr 1994 08:42:36 GMT References: <1994Apr08.145136.7101@stanford.edu> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1994Apr08.145136.7101@stanford.edu>, mramirez@stanford.edu (Morag Ramírez) writes: > Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Astrid González Tape trading list upon request. SASE required for international mail.