From fperez@clari.net Fri Nov 22 14:21:21 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!clari!fperez From: fperez@clari.net (Fiona Pérez) Newsgroups: comp.dsp Subject: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Nov22.142121.3875@clari.net> Date: Fri, 22 Nov 1996 14:21:21 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: Netscape 1.1N Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- === Fiona Pérez === Dept of Electrical Engineering, ClariNet Communications Corp "Hardware is temporary. The signal survives." From bpopov@netcom.com Sat Nov 23 07:21:21 1996 Path: ashpoly!cascade!mxgate!coyoacan!netcom!bpopov From: bpopov@netcom.com (Bastien Popov) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Nov23.072121.4592@netcom.com> Date: Sat, 23 Nov 1996 07:21:21 GMT References: <1996Nov22.142121.3875@clari.net> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Nov22.142121.3875@clari.net>, fperez@clari.net (Fiona Pérez) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. > Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Bastien Popov *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0