From csouza@pacbell.net Sun Dec 25 17:18:16 1994 Path: ashpoly!cascade!bigsur!pacbell!csouza From: csouza@pacbell.net (Callum Souza) Newsgroups: comp.sys.m68k Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec25.171816.6149@pacbell.net> Date: Sun, 25 Dec 1994 17:18:16 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Callum Souza | csouza@pacbell.net PGP Key fingerprint: C6D2 56D7 EE61 B86E "Keep the channels open." From tito@kiae.su Tue Dec 27 14:40:16 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!kiae!tito From: tito@kiae.su (Tyler Ito) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec27.144016.5567@kiae.su> Date: Tue, 27 Dec 1994 14:40:16 GMT References: <1994Dec25.171816.6149@pacbell.net> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Dec25.171816.6149@pacbell.net>, csouza@pacbell.net (Callum Souza) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Tyler Ito *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From bfischer@u-tokyo.ac.jp Wed Dec 28 22:45:16 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!u-tokyo!bfischer From: bfischer@u-tokyo.ac.jp (Bill Fischer) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec28.224516.3719@u-tokyo.ac.jp> Date: Wed, 28 Dec 1994 22:45:16 GMT References: <1994Dec25.171816.6149@pacbell.net> <1994Dec27.144016.5567@kiae.su> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Dec27.144016.5567@kiae.su>, tito@kiae.su (Tyler Ito) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Bill Fischer -- University of Tokyo Department of Information Science "Tape doesn't lie at 02:14. Ears do." From jsmirnov@utexas.edu Fri Dec 30 05:33:16 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!utexas!jsmirnov From: jsmirnov@utexas.edu (Ji-woo Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec30.053316.9449@utexas.edu> Date: Fri, 30 Dec 1994 05:33:16 GMT References: <1994Dec25.171816.6149@pacbell.net> <1994Dec27.144016.5567@kiae.su> <1994Dec28.224516.3719@u-tokyo.ac.jp> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Dec28.224516.3719@u-tokyo.ac.jp>, bfischer@u-tokyo.ac.jp (Bill Fischer) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- === Ji-woo Smirnov === Dept of Electrical Engineering, University of Texas at Austin "The hatch is open. Is anyone listening?"