From eito@utexas.edu Fri Feb 17 02:46:56 1995 Path: ashpoly!cascade!mxgate!coyoacan!utexas!eito From: eito@utexas.edu (Élodie Ito) Newsgroups: comp.dsp Subject: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb17.024656.4001@utexas.edu> Date: Fri, 17 Feb 1995 02:46:56 GMT Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 11 Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. 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! -- === Élodie Ito === Dept of Electrical Engineering, University of Texas at Austin "They will send a copy in my place." From ltakahashi@cam.ac.uk Fri Feb 17 11:19:56 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cam!ltakahashi From: ltakahashi@cam.ac.uk (Lars Takahashi) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb17.111956.8596@cam.ac.uk> Date: Fri, 17 Feb 1995 11:19:56 GMT References: <1995Feb17.024656.4001@utexas.edu> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Feb17.024656.4001@utexas.edu>, eito@utexas.edu (Élodie Ito) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Lars Takahashi "Hardware is temporary. The signal survives." 486DX2/66 (Linux 1.2.13) / System 7.5.1 From dnovak@pipeline.com Sat Feb 18 20:57:56 1995 Path: ashpoly!cascade!bigsur!pipeline!dnovak From: dnovak@pipeline.com (Dong-hyun Novak) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb18.205756.6586@pipeline.com> Date: Sat, 18 Feb 1995 20:57:56 GMT References: <1995Feb17.024656.4001@utexas.edu> <1995Feb17.111956.8596@cam.ac.uk> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Feb17.111956.8596@cam.ac.uk>, ltakahashi@cam.ac.uk (Lars Takahashi) writes: > Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Dong-hyun Novak -- The Pipeline Internet Network "Marcus is not one man." From srodriguez@cmu.edu Sun Feb 19 14:26:56 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cmu!srodriguez From: srodriguez@cmu.edu (Sergei Rodríguez) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb19.142656.4308@cmu.edu> Date: Sun, 19 Feb 1995 14:26:56 GMT References: <1995Feb17.024656.4001@utexas.edu> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Feb17.024656.4001@utexas.edu>, eito@utexas.edu (Élodie Ito) 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. -- Sergei Rodríguez Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS. ------------------------------------------------------------ From hlindqvist@earthlink.net Tue Feb 21 00:53:56 1995 Path: ashpoly!cascade!transat!ukc!fennimore!earthlink!hlindqvist From: hlindqvist@earthlink.net (Hana Lindqvist) Newsgroups: comp.dsp Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb21.005356.8267@earthlink.net> Date: Tue, 21 Feb 1995 00:53:56 GMT References: <1995Feb17.024656.4001@utexas.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Feb17.024656.4001@utexas.edu>, eito@utexas.edu (Élodie Ito) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. > Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Hana Lindqvist Tape trading list upon request. SASE required for international mail.