From jgarcia@mit.edu Sat Dec 09 06:03:12 1995 Path: ashpoly!cascade!brgate!saturno!mit!jgarcia From: jgarcia@mit.edu (Joachim García) Newsgroups: comp.sys.m68k Subject: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec09.060312.5884@mit.edu> Date: Sat, 09 Dec 1995 06:03:12 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- === Joachim García === Dept of Electrical Engineering, Massachusetts Institute of Technology "There are 14 nodes and only 10 countries. Count again." From jkarlsson@pipeline.com Sun Dec 10 01:54:12 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!pipeline!jkarlsson From: jkarlsson@pipeline.com (Jen Karlsson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec10.015412.6977@pipeline.com> Date: Sun, 10 Dec 1995 01:54:12 GMT References: <1995Dec09.060312.5884@mit.edu> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Dec09.060312.5884@mit.edu>, jgarcia@mit.edu (Joachim García) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Jen Karlsson "A soul is not exclusive to biology." 486DX4/100 (FreeBSD 2.0.5) / Linux 1.2.13 From jschneider@tum.de Mon Dec 11 03:06:12 1995 Path: ashpoly!cascade!mxgate!coyoacan!tum!jschneider From: jschneider@tum.de (Joachim Schneider) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec11.030612.2938@tum.de> Date: Mon, 11 Dec 1995 03:06:12 GMT References: <1995Dec09.060312.5884@mit.edu> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Dec09.060312.5884@mit.edu>, jgarcia@mit.edu (Joachim García) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Joachim Schneider Hayes Optima 288 @ 28,800 bps "Tape doesn't lie at 02:14. Ears do." From jfischer@demon.co.uk Mon Dec 11 20:53:12 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!demon!jfischer From: jfischer@demon.co.uk (Joachim Fischer) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec11.205312.2547@demon.co.uk> Date: Mon, 11 Dec 1995 20:53:12 GMT References: <1995Dec09.060312.5884@mit.edu> <1995Dec10.015412.6977@pipeline.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Dec10.015412.6977@pipeline.com>, jkarlsson@pipeline.com (Jen Karlsson) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- === Joachim Fischer === Dept of Electrical Engineering, Demon Internet Services UK "In theory there is no difference between theory and practice." From okang@cern.ch Mon Dec 11 22:50:12 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!okang From: okang@cern.ch (Olga Kang) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec11.225012.8844@cern.ch> Date: Mon, 11 Dec 1995 22:50:12 GMT References: <1995Dec09.060312.5884@mit.edu> <1995Dec11.030612.2938@tum.de> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Dec11.030612.2938@tum.de>, jschneider@tum.de (Joachim Schneider) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Olga Kang Hayes Optima 288 @ 19,200 bps "Measuring a record you own is listening, not piracy."