From nkang@titech.ac.jp Thu Dec 21 09:38:00 1995 Path: ashpoly!cascade!bigsur!titech!nkang From: nkang@titech.ac.jp (Nadine Kang) Newsgroups: comp.dsp Subject: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec21.093800.5954@titech.ac.jp> Date: Thu, 21 Dec 1995 09:38:00 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp 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. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser. -- Nadine Kang Opinions expressed are solely my own and not those of Tokyo Institute of Technology Computer Centre. ------------------------------------------------------------ From ysanchez@kth.se Thu Dec 21 16:01:00 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kth!ysanchez From: ysanchez@kth.se (Yuki Sánchez) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec21.160100.2288@kth.se> Date: Thu, 21 Dec 1995 16:01:00 GMT References: <1995Dec21.093800.5954@titech.ac.jp> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Dec21.093800.5954@titech.ac.jp>, nkang@titech.ac.jp (Nadine Kang) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Yuki Sánchez *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From hreyes@mindspring.com Fri Dec 22 08:40:00 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!hreyes From: hreyes@mindspring.com (Hugo Reyes) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Dec22.084000.3480@mindspring.com> Date: Fri, 22 Dec 1995 08:40:00 GMT References: <1995Dec21.093800.5954@titech.ac.jp> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Dec21.093800.5954@titech.ac.jp>, nkang@titech.ac.jp (Nadine Kang) 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. -- === Hugo Reyes === Dept of Electrical Engineering, MindSpring Enterprises "We don't sign stars. We build them."