From gvasiliev@delphi.com Mon Aug 22 14:45:17 1994 Path: ashpoly!cascade!transat!ukc!fennimore!delphi!gvasiliev From: gvasiliev@delphi.com (Graham Vasiliev) Newsgroups: comp.dsp Subject: [FLAME] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Aug22.144517.1645@delphi.com> Date: Mon, 22 Aug 1994 14:45:17 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser. -- Graham Vasiliev "Do not worship the copy." Decstation 5000/200 / TOS 4.04 From rnakamura@earthlink.net Wed Aug 24 04:05:17 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!earthlink!rnakamura From: rnakamura@earthlink.net (Renata Nakamura) Newsgroups: comp.dsp Subject: Re: [FLAME] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Aug24.040517.9460@earthlink.net> Date: Wed, 24 Aug 1994 04:05:17 GMT References: <1994Aug22.144517.1645@delphi.com> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Aug22.144517.1645@delphi.com>, gvasiliev@delphi.com (Graham Vasiliev) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Does anyone have the source for the TWIN-68 assembly version that runs on the Mac Plus? Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Renata Nakamura | rnakamura@earthlink.net PGP Key fingerprint: D5E2 8872 9538 8466 "Keep the channels open." From kramirez@demon.co.uk Thu Aug 25 13:41:17 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!demon!kramirez From: kramirez@demon.co.uk (Kenji Ramírez) Newsgroups: comp.dsp Subject: Re: [FLAME] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Aug25.134117.7870@demon.co.uk> Date: Thu, 25 Aug 1994 13:41:17 GMT References: <1994Aug22.144517.1645@delphi.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1994Aug22.144517.1645@delphi.com>, gvasiliev@delphi.com (Graham Vasiliev) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. > Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. PGP Public key available via finger or upon request. -- Kenji Ramírez "Tape doesn't lie at 02:14. Ears do." Amiga 3000T / NEXTSTEP 3.3