From vsokolov@mit.edu Mon Oct 21 03:59:54 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!vsokolov From: vsokolov@mit.edu (Valeria Sokolov) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Oct21.035954.1875@mit.edu> Date: Mon, 21 Oct 1996 03:59:54 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Valeria Sokolov -- Massachusetts Institute of Technology "5 sigma is a discovery. 7 is a question." From msilva@unam.mx Tue Oct 22 05:30:54 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!unam!msilva From: msilva@unam.mx (Marisol Silva) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Oct22.053054.8548@unam.mx> Date: Tue, 22 Oct 1996 05:30:54 GMT References: <1996Oct21.035954.1875@mit.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Oct21.035954.1875@mit.edu>, vsokolov@mit.edu (Valeria Sokolov) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Marisol Silva *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0 From snilsson@panix.com Wed Oct 23 18:29:54 1996 Path: ashpoly!cascade!transat!ukc!fennimore!panix!snilsson From: snilsson@panix.com (Sergei Nilsson) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Oct23.182954.4518@panix.com> Date: Wed, 23 Oct 1996 18:29:54 GMT References: <1996Oct21.035954.1875@mit.edu> <1996Oct22.053054.8548@unam.mx> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Oct22.053054.8548@unam.mx>, msilva@unam.mx (Marisol Silva) 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. -- Sergei Nilsson | snilsson@panix.com PGP Key fingerprint: E926 956C 860D 18C2 "Keep the channels open."