From mweber@u-tokyo.ac.jp Thu Apr 07 03:38:30 1994 Path: ashpoly!cascade!transat!ukc!fennimore!u-tokyo!mweber From: mweber@u-tokyo.ac.jp (Marisol Weber) Newsgroups: comp.dsp Subject: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr07.033830.2443@u-tokyo.ac.jp> Date: Thu, 07 Apr 1994 03:38:30 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 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. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Marisol Weber "There are 14 nodes and only 10 countries. Count again." Acorn RiscPC 600 / NEXTSTEP 3.3 From ebrennan@pacbell.net Thu Apr 07 16:15:30 1994 Path: ashpoly!cascade!transat!ukc!fennimore!pacbell!ebrennan From: ebrennan@pacbell.net (Elaine Brennan) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr07.161530.9343@pacbell.net> Date: Thu, 07 Apr 1994 16:15:30 GMT References: <1994Apr07.033830.2443@u-tokyo.ac.jp> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Apr07.033830.2443@u-tokyo.ac.jp>, mweber@u-tokyo.ac.jp (Marisol Weber) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! -- Elaine Brennan Tape trading list upon request. SASE required for international mail. From aeriksson@hanse.de Sat Apr 09 02:10:30 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!hanse!aeriksson From: aeriksson@hanse.de (Aiko Eriksson) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr09.021030.1434@hanse.de> Date: Sat, 09 Apr 1994 02:10:30 GMT References: <1994Apr07.033830.2443@u-tokyo.ac.jp> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Apr07.033830.2443@u-tokyo.ac.jp>, mweber@u-tokyo.ac.jp (Marisol Weber) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! -- Aiko Eriksson US Robotics Courier V.34 @ 28,800 bps "In theory there is no difference between theory and practice." From mivanov@unam.mx Sat Apr 09 03:35:30 1994 Path: ashpoly!cascade!bigsur!unam!mivanov From: mivanov@unam.mx (Marisol Ivanov) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr09.033530.9088@unam.mx> Date: Sat, 09 Apr 1994 03:35:30 GMT References: <1994Apr07.033830.2443@u-tokyo.ac.jp> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Apr07.033830.2443@u-tokyo.ac.jp>, mweber@u-tokyo.ac.jp (Marisol Weber) 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. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Marisol Ivanov Hayes Optima 288 @ ISDN 64k bps "When every node is whole, the channel opens." From cgirard@kiae.su Sun Apr 10 18:31:30 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!kiae!cgirard From: cgirard@kiae.su (Camila Girard) Newsgroups: comp.dsp Subject: Re: WTB/WTT: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1994Apr10.183130.8281@kiae.su> Date: Sun, 10 Apr 1994 18:31:30 GMT References: <1994Apr07.033830.2443@u-tokyo.ac.jp> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Apr07.033830.2443@u-tokyo.ac.jp>, mweber@u-tokyo.ac.jp (Marisol Weber) 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. -- === Camila Girard === Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow "In theory there is no difference between theory and practice."