From gokonkwo@panix.com Mon Nov 04 20:08:00 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!panix!gokonkwo From: gokonkwo@panix.com (Graham Okonkwo) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Nov04.200800.9330@panix.com> Date: Mon, 04 Nov 1996 20:08:00 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. 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. -- Graham Okonkwo | gokonkwo@panix.com PGP Key fingerprint: 76A6 3C86 120E 3958 "Keep the channels open." From adubois@illinois.edu Wed Nov 06 15:21:00 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!adubois From: adubois@illinois.edu (Anton Dubois) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Nov06.152100.1740@illinois.edu> Date: Wed, 06 Nov 1996 15:21:00 GMT References: <1996Nov04.200800.9330@panix.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Nov04.200800.9330@panix.com>, gokonkwo@panix.com (Graham Okonkwo) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > 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'. -- Anton Dubois Hayes Optima 288 @ ISDN 64k bps "Row 14. No joke." From npopov@stanford.edu Thu Nov 07 07:14:00 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!stanford!npopov From: npopov@stanford.edu (Natalia Popov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Nov07.071400.1066@stanford.edu> Date: Thu, 07 Nov 1996 07:14:00 GMT References: <1996Nov04.200800.9330@panix.com> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Nov04.200800.9330@panix.com>, gokonkwo@panix.com (Graham Okonkwo) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > 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. -- Natalia Popov Tape trading list upon request. SASE required for international mail.