From jnovak@ox.ac.uk Mon Jul 08 20:55:13 1996 Path: ashpoly!cascade!brgate!saturno!ox!jnovak From: jnovak@ox.ac.uk (Ji-woo Novak) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul08.205513.8692@ox.ac.uk> Date: Mon, 08 Jul 1996 20:55:13 GMT Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Ji-woo Novak US Robotics Courier V.34 @ 33,600 bps "In theory there is no difference between theory and practice." From acampbell@cern.ch Tue Jul 09 20:50:13 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!cern!acampbell From: acampbell@cern.ch (Anton Campbell) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul09.205013.3673@cern.ch> Date: Tue, 09 Jul 1996 20:50:13 GMT References: <1996Jul08.205513.8692@ox.ac.uk> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Jul08.205513.8692@ox.ac.uk>, jnovak@ox.ac.uk (Ji-woo Novak) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Anton Campbell -- European Laboratory for Particle Physics, Geneva "Extraordinary claims require extraordinary spectra." From tlaurent@u-tokyo.ac.jp Thu Jul 11 17:15:13 1996 Path: ashpoly!cascade!mxgate!coyoacan!u-tokyo!tlaurent From: tlaurent@u-tokyo.ac.jp (Tyler Laurent) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul11.171513.1564@u-tokyo.ac.jp> Date: Thu, 11 Jul 1996 17:15:13 GMT References: <1996Jul08.205513.8692@ox.ac.uk> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Jul08.205513.8692@ox.ac.uk>, jnovak@ox.ac.uk (Ji-woo Novak) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Tyler Laurent Hayes Optima 288 @ 28,800 bps "There are 14 nodes and only 10 countries. Count again." From crodriguez@berkeley.edu Fri Jul 12 19:17:13 1996 Path: ashpoly!cascade!mxgate!coyoacan!berkeley!crodriguez From: crodriguez@berkeley.edu (Camila Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul12.191713.9840@berkeley.edu> Date: Fri, 12 Jul 1996 19:17:13 GMT References: <1996Jul08.205513.8692@ox.ac.uk> <1996Jul11.171513.1564@u-tokyo.ac.jp> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jul11.171513.1564@u-tokyo.ac.jp>, tlaurent@u-tokyo.ac.jp (Tyler Laurent) writes: > Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Camila Rodríguez Practical Peripherals 14.4 @ ISDN 64k bps "Marcus is not one man."