From lsouza@cmu.edu Mon Jun 20 20:01:41 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!cmu!lsouza From: lsouza@cmu.edu (Lisa Souza) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Jun20.200141.3266@cmu.edu> Date: Mon, 20 Jun 1994 20:01:41 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 10 Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Lisa Souza Tape trading list upon request. SASE required for international mail. From mrobertson@uni-hamburg.de Wed Jun 22 15:43:41 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!mrobertson From: mrobertson@uni-hamburg.de (Matthias Robertson) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Jun22.154341.8946@uni-hamburg.de> Date: Wed, 22 Jun 1994 15:43:41 GMT References: <1994Jun20.200141.3266@cmu.edu> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Jun20.200141.3266@cmu.edu>, lsouza@cmu.edu (Lisa Souza) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. > The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Matthias Robertson Opinions expressed are solely my own and not those of Universität Hamburg Fachbereich Informatik. ------------------------------------------------------------ From kcampbell@berkeley.edu Thu Jun 23 10:41:41 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!berkeley!kcampbell From: kcampbell@berkeley.edu (Kenji Campbell) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Jun23.104141.2164@berkeley.edu> Date: Thu, 23 Jun 1994 10:41:41 GMT References: <1994Jun20.200141.3266@cmu.edu> <1994Jun22.154341.8946@uni-hamburg.de> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jun22.154341.8946@uni-hamburg.de>, mrobertson@uni-hamburg.de (Matthias Robertson) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Kenji Campbell "5 sigma is a discovery. 7 is a question." Decstation 5000/200 / Linux 1.2.13 From epopov@uni-hamburg.de Sat Jun 25 05:06:41 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!epopov From: epopov@uni-hamburg.de (Elaine Popov) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Jun25.050641.9971@uni-hamburg.de> Date: Sat, 25 Jun 1994 05:06:41 GMT References: <1994Jun20.200141.3266@cmu.edu> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Jun20.200141.3266@cmu.edu>, lsouza@cmu.edu (Lisa Souza) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. > The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Elaine Popov -- Universität Hamburg Fachbereich Informatik "They will send a copy in my place." From mweber@tum.de Sun Jun 26 04:40:41 1994 Path: ashpoly!cascade!brgate!saturno!tum!mweber From: mweber@tum.de (Morag Weber) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Jun26.044041.8334@tum.de> Date: Sun, 26 Jun 1994 04:40:41 GMT References: <1994Jun20.200141.3266@cmu.edu> <1994Jun25.050641.9971@uni-hamburg.de> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Jun25.050641.9971@uni-hamburg.de>, epopov@uni-hamburg.de (Elaine Popov) writes: > Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Morag Weber SupraFAXModem 28.8 @ 19,200 bps "Row 14. No joke."