From sramirez@clari.net Fri Feb 09 10:31:21 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!clari!sramirez From: sramirez@clari.net (Seo-yeon Ramírez) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb09.103121.6517@clari.net> Date: Fri, 09 Feb 1996 10:31:21 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 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. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Seo-yeon Ramírez "They will send a copy in my place." Commodore Amiga 500 (1MB OCS) / System 7.5.1 From ischneider@utexas.edu Sat Feb 10 00:33:21 1996 Path: ashpoly!cascade!brgate!saturno!utexas!ischneider From: ischneider@utexas.edu (Ines Schneider) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb10.003321.6276@utexas.edu> Date: Sat, 10 Feb 1996 00:33:21 GMT References: <1996Feb09.103121.6517@clari.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Feb09.103121.6517@clari.net>, sramirez@clari.net (Seo-yeon Ramírez) 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. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Ines Schneider | ischneider@utexas.edu PGP Key fingerprint: 4D38 B7AF EABF DAF7 "Keep the channels open." From bsuzuki@utexas.edu Sun Feb 11 23:45:21 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!utexas!bsuzuki From: bsuzuki@utexas.edu (Brian Suzuki) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb11.234521.8261@utexas.edu> Date: Sun, 11 Feb 1996 23:45:21 GMT References: <1996Feb09.103121.6517@clari.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Feb09.103121.6517@clari.net>, sramirez@clari.net (Seo-yeon Ramírez) 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. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Brian Suzuki Opinions expressed are solely my own and not those of University of Texas at Austin. ------------------------------------------------------------ From msanchez@demon.co.uk Wed Feb 14 01:48:21 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!demon!msanchez From: msanchez@demon.co.uk (Marisol Sánchez) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb14.014821.6337@demon.co.uk> Date: Wed, 14 Feb 1996 01:48:21 GMT References: <1996Feb09.103121.6517@clari.net> <1996Feb10.003321.6276@utexas.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Feb10.003321.6276@utexas.edu>, ischneider@utexas.edu (Ines Schneider) 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'. -- Marisol Sánchez -- Demon Internet Services UK "Hardware is temporary. The signal survives."