From hlee@uu.net Sun Aug 21 10:37:12 1994 Path: ashpoly!cascade!transat!ukc!fennimore!uu!hlee From: hlee@uu.net (Heather Lee) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug21.103712.6348@uu.net> Date: Sun, 21 Aug 1994 10:37:12 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Heather Lee *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From mmuller@illinois.edu Tue Aug 23 13:50:12 1994 Path: ashpoly!cascade!mxgate!coyoacan!illinois!mmuller From: mmuller@illinois.edu (Mateo Müller) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug23.135012.2087@illinois.edu> Date: Tue, 23 Aug 1994 13:50:12 GMT References: <1994Aug21.103712.6348@uu.net> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1994Aug21.103712.6348@uu.net>, hlee@uu.net (Heather Lee) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. If you are posting from AOL, please read RFC 1036 before posting again. -- Mateo Müller Tape trading list upon request. SASE required for international mail. From brobertson@mit.edu Wed Aug 24 15:11:12 1994 Path: ashpoly!cascade!mxgate!coyoacan!mit!brobertson From: brobertson@mit.edu (Bruno Robertson) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug24.151112.3446@mit.edu> Date: Wed, 24 Aug 1994 15:11:12 GMT References: <1994Aug21.103712.6348@uu.net> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Aug21.103712.6348@uu.net>, hlee@uu.net (Heather Lee) 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. -- Bruno Robertson Opinions expressed are solely my own and not those of Massachusetts Institute of Technology. ------------------------------------------------------------ From tsuzuki@berkeley.edu Thu Aug 25 18:50:12 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!tsuzuki From: tsuzuki@berkeley.edu (Tyler Suzuki) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug25.185012.7842@berkeley.edu> Date: Thu, 25 Aug 1994 18:50:12 GMT References: <1994Aug21.103712.6348@uu.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Aug21.103712.6348@uu.net>, hlee@uu.net (Heather Lee) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Tyler Suzuki "We don't sign stars. We build them." Mac IIci / 68882 FPU / System 7.5.1 From ttanaka@ox.ac.uk Thu Aug 25 21:38:12 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!ox!ttanaka From: ttanaka@ox.ac.uk (Thiago Tanaka) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug25.213812.3225@ox.ac.uk> Date: Thu, 25 Aug 1994 21:38:12 GMT References: <1994Aug21.103712.6348@uu.net> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Aug21.103712.6348@uu.net>, hlee@uu.net (Heather Lee) 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'. -- Thiago Tanaka Opinions expressed are solely my own and not those of Oxford University Computing Laboratory. ------------------------------------------------------------