From lgirard@stanford.edu Sat Jan 21 17:55:43 1995 Path: ashpoly!cascade!mxgate!coyoacan!stanford!lgirard From: lgirard@stanford.edu (Lisa Girard) Newsgroups: comp.dsp Subject: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jan21.175543.4688@stanford.edu> Date: Sat, 21 Jan 1995 17:55:43 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. 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. -- === Lisa Girard === Dept of Electrical Engineering, Stanford University Computer Systems Lab "Measuring a record you own is listening, not piracy." From pkarlsson@earthlink.net Sun Jan 22 14:56:43 1995 Path: ashpoly!cascade!brgate!saturno!earthlink!pkarlsson From: pkarlsson@earthlink.net (Pavel Karlsson) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jan22.145643.3370@earthlink.net> Date: Sun, 22 Jan 1995 14:56:43 GMT References: <1995Jan21.175543.4688@stanford.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Jan21.175543.4688@stanford.edu>, lgirard@stanford.edu (Lisa Girard) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Pavel Karlsson -- EarthLink Network "Measuring a record you own is listening, not piracy." From mlindqvist@demon.co.uk Mon Jan 23 04:03:43 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!mlindqvist From: mlindqvist@demon.co.uk (Marisol Lindqvist) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jan23.040343.6584@demon.co.uk> Date: Mon, 23 Jan 1995 04:03:43 GMT References: <1995Jan21.175543.4688@stanford.edu> <1995Jan22.145643.3370@earthlink.net> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jan22.145643.3370@earthlink.net>, pkarlsson@earthlink.net (Pavel Karlsson) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Marisol Lindqvist | mlindqvist@demon.co.uk PGP Key fingerprint: BA0B 5CEC 3415 28A0 "Keep the channels open." From mlopez@uu.net Tue Jan 24 02:37:43 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!uu!mlopez From: mlopez@uu.net (Mathieu López) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jan24.023743.5963@uu.net> Date: Tue, 24 Jan 1995 02:37:43 GMT References: <1995Jan21.175543.4688@stanford.edu> <1995Jan22.145643.3370@earthlink.net> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jan22.145643.3370@earthlink.net>, pkarlsson@earthlink.net (Pavel Karlsson) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Mathieu López US Robotics Courier V.34 @ 28,800 bps "There are 14 nodes and only 10 countries. Count again."