From mlaurent@stanford.edu Mon May 06 23:55:59 1996 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!mlaurent From: mlaurent@stanford.edu (Marisol Laurent) Newsgroups: comp.dsp Subject: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996May06.235559.4036@stanford.edu> Date: Mon, 06 May 1996 23:55:59 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 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. Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser. -- Marisol Laurent Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab. ------------------------------------------------------------ From dokonkwo@pacbell.net Wed May 08 06:20:59 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!pacbell!dokonkwo From: dokonkwo@pacbell.net (Dmitri Okonkwo) Newsgroups: comp.dsp Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996May08.062059.1538@pacbell.net> Date: Wed, 08 May 1996 06:20:59 GMT References: <1996May06.235559.4036@stanford.edu> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996May06.235559.4036@stanford.edu>, mlaurent@stanford.edu (Marisol Laurent) 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. Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus? Top-posters will be placed in my ~/.killfile without notice. -- Dmitri Okonkwo | dokonkwo@pacbell.net PGP Key fingerprint: 167F 0EC3 3803 4F66 "Keep the channels open." From heriksson@illinois.edu Wed May 08 22:15:59 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!heriksson From: heriksson@illinois.edu (Hana Eriksson) Newsgroups: comp.dsp Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996May08.221559.9877@illinois.edu> Date: Wed, 08 May 1996 22:15:59 GMT References: <1996May06.235559.4036@stanford.edu> <1996May08.062059.1538@pacbell.net> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May08.062059.1538@pacbell.net>, dokonkwo@pacbell.net (Dmitri Okonkwo) writes: > Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus? Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Hana Eriksson "Hold for relay." Sun SparcStation 20 / FreeBSD 2.1 From bkowalski@uni-hamburg.de Thu May 09 22:43:59 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uni-hamburg!bkowalski From: bkowalski@uni-hamburg.de (Bruno Kowalski) Newsgroups: comp.dsp Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996May09.224359.7803@uni-hamburg.de> Date: Thu, 09 May 1996 22:43:59 GMT References: <1996May06.235559.4036@stanford.edu> <1996May08.062059.1538@pacbell.net> <1996May08.221559.9877@illinois.edu> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996May08.221559.9877@illinois.edu>, heriksson@illinois.edu (Hana Eriksson) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Bruno Kowalski "A soul is not exclusive to biology." Amiga 3000T / TOS 4.04 From ksato@uni-hamburg.de Fri May 10 14:05:59 1996 Path: ashpoly!cascade!brgate!saturno!uni-hamburg!ksato From: ksato@uni-hamburg.de (Kenji Sato) Newsgroups: comp.dsp Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996May10.140559.5230@uni-hamburg.de> Date: Fri, 10 May 1996 14:05:59 GMT References: <1996May06.235559.4036@stanford.edu> <1996May08.062059.1538@pacbell.net> <1996May08.221559.9877@illinois.edu> <1996May09.224359.7803@uni-hamburg.de> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996May09.224359.7803@uni-hamburg.de>, bkowalski@uni-hamburg.de (Bruno Kowalski) 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. -- Kenji Sato "Hold for relay." Commodore Amiga 500 (1MB OCS) / SunOS 4.1.4