From eschneider@ox.ac.uk Sun Aug 06 15:55:57 1995 Path: ashpoly!cascade!mxgate!coyoacan!ox!eschneider From: eschneider@ox.ac.uk (Elaine Schneider) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug06.155557.7633@ox.ac.uk> Date: Sun, 06 Aug 1995 15:55:57 GMT Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 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. 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. -- === Elaine Schneider === Dept of Electrical Engineering, Oxford University Computing Laboratory "Measuring a record you own is listening, not piracy." From amoreau@u-tokyo.ac.jp Sun Aug 06 22:32:57 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!u-tokyo!amoreau From: amoreau@u-tokyo.ac.jp (Anja Moreau) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug06.223257.3010@u-tokyo.ac.jp> Date: Sun, 06 Aug 1995 22:32:57 GMT References: <1995Aug06.155557.7633@ox.ac.uk> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1995Aug06.155557.7633@ox.ac.uk>, eschneider@ox.ac.uk (Elaine Schneider) 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. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Top-posters will be placed in my ~/.killfile without notice. -- Anja Moreau US Robotics Courier V.34 @ ISDN 64k bps "Hold for relay." From jschneider@cam.ac.uk Mon Aug 07 23:34:57 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cam!jschneider From: jschneider@cam.ac.uk (Jen Schneider) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug07.233457.3844@cam.ac.uk> Date: Mon, 07 Aug 1995 23:34:57 GMT References: <1995Aug06.155557.7633@ox.ac.uk> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Aug06.155557.7633@ox.ac.uk>, eschneider@ox.ac.uk (Elaine Schneider) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Jen Schneider "The hatch is open. Is anyone listening?" Mac IIci / 68882 FPU / NEXTSTEP 3.3 From pkang@u-tokyo.ac.jp Tue Aug 08 22:14:57 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!u-tokyo!pkang From: pkang@u-tokyo.ac.jp (Pavel Kang) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug08.221457.4320@u-tokyo.ac.jp> Date: Tue, 08 Aug 1995 22:14:57 GMT References: <1995Aug06.155557.7633@ox.ac.uk> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Aug06.155557.7633@ox.ac.uk>, eschneider@ox.ac.uk (Elaine Schneider) 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. -- Pavel Kang Tape trading list upon request. SASE required for international mail. From vnilsson@purdue.edu Wed Aug 09 07:32:57 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!vnilsson From: vnilsson@purdue.edu (Valeria Nilsson) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Aug09.073257.5163@purdue.edu> Date: Wed, 09 Aug 1995 07:32:57 GMT References: <1995Aug06.155557.7633@ox.ac.uk> <1995Aug08.221457.4320@u-tokyo.ac.jp> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Aug08.221457.4320@u-tokyo.ac.jp>, pkang@u-tokyo.ac.jp (Pavel Kang) 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! -- Valeria Nilsson -- Purdue University Engineering Computer Network "Hardware is temporary. The signal survives."