From thughes@purdue.edu Thu Feb 17 21:42:13 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!thughes From: thughes@purdue.edu (Thiago Hughes) Newsgroups: comp.dsp Subject: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb17.214213.4752@purdue.edu> Date: Thu, 17 Feb 1994 21:42:13 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 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. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Thiago Hughes "Hold for relay." Decstation 5000/200 / TOS 4.04 From mreyes@earthlink.net Fri Feb 18 13:35:13 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!earthlink!mreyes From: mreyes@earthlink.net (Marisol Reyes) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb18.133513.7897@earthlink.net> Date: Fri, 18 Feb 1994 13:35:13 GMT References: <1994Feb17.214213.4752@purdue.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1994Feb17.214213.4752@purdue.edu>, thughes@purdue.edu (Thiago Hughes) 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. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Marisol Reyes US Robotics Courier V.34 @ 19,200 bps "Tape doesn't lie at 02:14. Ears do." From fkarlsson@berkeley.edu Sat Feb 19 15:08:13 1994 Path: ashpoly!cascade!mxgate!coyoacan!berkeley!fkarlsson From: fkarlsson@berkeley.edu (Fiona Karlsson) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb19.150813.4001@berkeley.edu> Date: Sat, 19 Feb 1994 15:08:13 GMT References: <1994Feb17.214213.4752@purdue.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Feb17.214213.4752@purdue.edu>, thughes@purdue.edu (Thiago Hughes) 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. -- Fiona Karlsson Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------ From sstewart@hanse.de Sun Feb 20 06:48:13 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!hanse!sstewart From: sstewart@hanse.de (Sergei Stewart) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Feb20.064813.5564@hanse.de> Date: Sun, 20 Feb 1994 06:48:13 GMT References: <1994Feb17.214213.4752@purdue.edu> <1994Feb18.133513.7897@earthlink.net> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Feb18.133513.7897@earthlink.net>, mreyes@earthlink.net (Marisol Reyes) writes: > Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Sergei Stewart *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0