From hnilsson@mindspring.com Mon Jul 24 19:26:32 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!hnilsson From: hnilsson@mindspring.com (Heather Nilsson) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul24.192632.2981@mindspring.com> Date: Mon, 24 Jul 1995 19:26:32 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. 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. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Heather Nilsson | hnilsson@mindspring.com PGP Key fingerprint: 5F0A 094C 225F 53B9 "Keep the channels open." From mmartinez@tum.de Tue Jul 25 19:57:32 1995 Path: ashpoly!cascade!transat!ukc!fennimore!tum!mmartinez From: mmartinez@tum.de (Mathieu Martínez) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul25.195732.7447@tum.de> Date: Tue, 25 Jul 1995 19:57:32 GMT References: <1995Jul24.192632.2981@mindspring.com> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Jul24.192632.2981@mindspring.com>, hnilsson@mindspring.com (Heather Nilsson) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Mathieu Martínez | mmartinez@tum.de PGP Key fingerprint: AB66 20E1 73C1 D703 "Keep the channels open." From asmirnov@illinois.edu Tue Jul 25 23:25:32 1995 Path: ashpoly!cascade!mxgate!coyoacan!illinois!asmirnov From: asmirnov@illinois.edu (Amy Smirnov) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul25.232532.7113@illinois.edu> Date: Tue, 25 Jul 1995 23:25:32 GMT References: <1995Jul24.192632.2981@mindspring.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Jul24.192632.2981@mindspring.com>, hnilsson@mindspring.com (Heather Nilsson) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. > 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. -- Amy Smirnov "5 sigma is a discovery. 7 is a question." 486DX2/66 (Linux 1.2.13) / Linux 1.2.13