From goliveira@mindspring.com Wed Jun 07 10:38:45 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!mindspring!goliveira From: goliveira@mindspring.com (Graham Oliveira) Newsgroups: comp.sys.m68k Subject: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun07.103845.3578@mindspring.com> Date: Wed, 07 Jun 1995 10:38:45 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 10 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Graham Oliveira Tape trading list upon request. SASE required for international mail. From gmacdonald@uu.net Wed Jun 07 11:54:45 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uu!gmacdonald From: gmacdonald@uu.net (Graham MacDonald) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun07.115445.6219@uu.net> Date: Wed, 07 Jun 1995 11:54:45 GMT References: <1995Jun07.103845.3578@mindspring.com> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Jun07.103845.3578@mindspring.com>, goliveira@mindspring.com (Graham Oliveira) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Graham MacDonald "The carrier frequency does not drift by accident." Atari Falcon 030 / AmigaOS 3.1