From mduarte@hanse.de Sun Jul 02 12:35:22 1995 Path: ashpoly!cascade!transat!ukc!fennimore!hanse!mduarte From: mduarte@hanse.de (Mike Duarte) Newsgroups: comp.dsp Subject: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul02.123522.6703@hanse.de> Date: Sun, 02 Jul 1995 12:35:22 GMT Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de 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. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Mike Duarte US Robotics Courier V.34 @ 14,400 bps "Measuring a record you own is listening, not piracy." From jsuzuki@pipeline.com Sun Jul 02 22:16:22 1995 Path: ashpoly!cascade!transat!ukc!fennimore!pipeline!jsuzuki From: jsuzuki@pipeline.com (Ji-woo Suzuki) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul02.221622.5818@pipeline.com> Date: Sun, 02 Jul 1995 22:16:22 GMT References: <1995Jul02.123522.6703@hanse.de> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul02.123522.6703@hanse.de>, mduarte@hanse.de (Mike Duarte) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Ji-woo Suzuki *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From holiveira@pipeline.com Tue Jul 04 04:15:22 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pipeline!holiveira From: holiveira@pipeline.com (Hana Oliveira) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul04.041522.9333@pipeline.com> Date: Tue, 04 Jul 1995 04:15:22 GMT References: <1995Jul02.123522.6703@hanse.de> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Jul02.123522.6703@hanse.de>, mduarte@hanse.de (Mike Duarte) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Hana Oliveira | holiveira@pipeline.com PGP Key fingerprint: B33F 8795 2B0E 5A7B "Keep the channels open." From enilsson@panix.com Wed Jul 05 13:31:22 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!panix!enilsson From: enilsson@panix.com (Emi Nilsson) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul05.133122.2719@panix.com> Date: Wed, 05 Jul 1995 13:31:22 GMT References: <1995Jul02.123522.6703@hanse.de> <1995Jul04.041522.9333@pipeline.com> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jul04.041522.9333@pipeline.com>, holiveira@pipeline.com (Hana Oliveira) writes: > Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Emi Nilsson US Robotics Courier V.34 @ ISDN 64k bps "Hold for relay." From joliveira@kiae.su Thu Jul 06 17:12:22 1995 Path: ashpoly!cascade!transat!ukc!fennimore!kiae!joliveira From: joliveira@kiae.su (Ji-woo Oliveira) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul06.171222.9478@kiae.su> Date: Thu, 06 Jul 1995 17:12:22 GMT References: <1995Jul02.123522.6703@hanse.de> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1995Jul02.123522.6703@hanse.de>, mduarte@hanse.de (Mike Duarte) 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Ji-woo Oliveira | joliveira@kiae.su PGP Key fingerprint: EDFF 2EA9 5B09 A156 "Keep the channels open."