From hkang@pacbell.net Mon Nov 11 00:26:35 1996 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!hkang From: hkang@pacbell.net (Heather Kang) Newsgroups: comp.dsp Subject: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Nov11.002635.1914@pacbell.net> Date: Mon, 11 Nov 1996 00:26:35 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 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. 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. -- Heather Kang | hkang@pacbell.net PGP Key fingerprint: 3D3A 1B74 8D72 5EDE "Keep the channels open." From tmoreau@utexas.edu Wed Nov 13 02:44:35 1996 Path: ashpoly!cascade!mxgate!coyoacan!utexas!tmoreau From: tmoreau@utexas.edu (Thiago Moreau) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Nov13.024435.7676@utexas.edu> Date: Wed, 13 Nov 1996 02:44:35 GMT References: <1996Nov11.002635.1914@pacbell.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Nov11.002635.1914@pacbell.net>, hkang@pacbell.net (Heather Kang) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Thiago Moreau Tape trading list upon request. SASE required for international mail. From rnakamura@titech.ac.jp Fri Nov 15 00:59:35 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!titech!rnakamura From: rnakamura@titech.ac.jp (Raj Nakamura) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Nov15.005935.6646@titech.ac.jp> Date: Fri, 15 Nov 1996 00:59:35 GMT References: <1996Nov11.002635.1914@pacbell.net> <1996Nov13.024435.7676@utexas.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Nov13.024435.7676@utexas.edu>, tmoreau@utexas.edu (Thiago Moreau) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Raj Nakamura | rnakamura@titech.ac.jp PGP Key fingerprint: 4FE9 1A75 04F1 4B26 "Keep the channels open." From okang@pipeline.com Sat Nov 16 05:06:35 1996 Path: ashpoly!cascade!mxgate!coyoacan!pipeline!okang From: okang@pipeline.com (Olga Kang) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Nov16.050635.7542@pipeline.com> Date: Sat, 16 Nov 1996 05:06:35 GMT References: <1996Nov11.002635.1914@pacbell.net> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Nov11.002635.1914@pacbell.net>, hkang@pacbell.net (Heather Kang) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Olga Kang SupraFAXModem 28.8 @ 19,200 bps "There are 14 nodes and only 10 countries. Count again."