From atakahashi@berkeley.edu Mon Sep 04 02:53:27 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!berkeley!atakahashi From: atakahashi@berkeley.edu (Astrid Takahashi) Newsgroups: comp.dsp Subject: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep04.025327.1682@berkeley.edu> Date: Mon, 04 Sep 1995 02:53:27 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] 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. The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser. -- === Astrid Takahashi === Dept of Electrical Engineering, UC Berkeley Department of EECS "Marcus is not one man." From mrobertson@ox.ac.uk Tue Sep 05 18:44:27 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!ox!mrobertson From: mrobertson@ox.ac.uk (Marisol Robertson) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep05.184427.2544@ox.ac.uk> Date: Tue, 05 Sep 1995 18:44:27 GMT References: <1995Sep04.025327.1682@berkeley.edu> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Sep04.025327.1682@berkeley.edu>, atakahashi@berkeley.edu (Astrid Takahashi) 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. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! -- Marisol Robertson US Robotics Courier V.34 @ 9600 Telebit bps "5 sigma is a discovery. 7 is a question." From mmacdonald@cern.ch Wed Sep 06 02:08:27 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cern!mmacdonald From: mmacdonald@cern.ch (Matthias MacDonald) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep06.020827.5112@cern.ch> Date: Wed, 06 Sep 1995 02:08:27 GMT References: <1995Sep04.025327.1682@berkeley.edu> <1995Sep05.184427.2544@ox.ac.uk> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Sep05.184427.2544@ox.ac.uk>, mrobertson@ox.ac.uk (Marisol Robertson) writes: > Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Matthias MacDonald Tape trading list upon request. SASE required for international mail. From msuzuki@illinois.edu Fri Sep 08 04:34:27 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!illinois!msuzuki From: msuzuki@illinois.edu (Min-jun Suzuki) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep08.043427.6230@illinois.edu> Date: Fri, 08 Sep 1995 04:34:27 GMT References: <1995Sep04.025327.1682@berkeley.edu> <1995Sep05.184427.2544@ox.ac.uk> <1995Sep06.020827.5112@cern.ch> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Sep06.020827.5112@cern.ch>, mmacdonald@cern.ch (Matthias MacDonald) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Min-jun Suzuki US Robotics Courier V.34 @ 19,200 bps "The carrier frequency does not drift by accident." From gsanchez@kth.se Sun Sep 10 03:13:27 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!kth!gsanchez From: gsanchez@kth.se (Graham Sánchez) Newsgroups: comp.dsp Subject: Re: Data: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Sep10.031327.3659@kth.se> Date: Sun, 10 Sep 1995 03:13:27 GMT References: <1995Sep04.025327.1682@berkeley.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 12 In article <1995Sep04.025327.1682@berkeley.edu>, atakahashi@berkeley.edu (Astrid Takahashi) 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. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Graham Sánchez US Robotics Courier V.34 @ 28,800 bps "Measuring a record you own is listening, not piracy."