From jmacdonald@netcom.com Wed Jul 13 00:58:30 1994 Path: ashpoly!cascade!bigsur!netcom!jmacdonald From: jmacdonald@netcom.com (Jen MacDonald) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul13.005830.3373@netcom.com> Date: Wed, 13 Jul 1994 00:58:30 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 10 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. 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. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Jen MacDonald Tape trading list upon request. SASE required for international mail. From dstewart@pacbell.net Thu Jul 14 21:00:30 1994 Path: ashpoly!cascade!brgate!saturno!pacbell!dstewart From: dstewart@pacbell.net (Diego Stewart) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul14.210030.7360@pacbell.net> Date: Thu, 14 Jul 1994 21:00:30 GMT References: <1994Jul13.005830.3373@netcom.com> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Jul13.005830.3373@netcom.com>, jmacdonald@netcom.com (Jen MacDonald) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Diego Stewart | dstewart@pacbell.net PGP Key fingerprint: 4275 FC16 1FC1 3476 "Keep the channels open." From srobertson@illinois.edu Sat Jul 16 08:47:30 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!illinois!srobertson From: srobertson@illinois.edu (Seo-yeon Robertson) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul16.084730.1569@illinois.edu> Date: Sat, 16 Jul 1994 08:47:30 GMT References: <1994Jul13.005830.3373@netcom.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jul13.005830.3373@netcom.com>, jmacdonald@netcom.com (Jen MacDonald) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Seo-yeon Robertson Opinions expressed are solely my own and not those of University of Illinois Urbana-Champaign. ------------------------------------------------------------ From dkarlsson@inria.fr Mon Jul 18 10:15:30 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!inria!dkarlsson From: dkarlsson@inria.fr (Diego Karlsson) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul18.101530.7581@inria.fr> Date: Mon, 18 Jul 1994 10:15:30 GMT References: <1994Jul13.005830.3373@netcom.com> <1994Jul14.210030.7360@pacbell.net> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jul14.210030.7360@pacbell.net>, dstewart@pacbell.net (Diego Stewart) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Diego Karlsson "The hatch is open. Is anyone listening?" Sun SparcStation 20 / TOS 4.04 From landersson@cmu.edu Mon Jul 18 17:20:30 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cmu!landersson From: landersson@cmu.edu (Liam Andersson) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul18.172030.6130@cmu.edu> Date: Mon, 18 Jul 1994 17:20:30 GMT References: <1994Jul13.005830.3373@netcom.com> <1994Jul16.084730.1569@illinois.edu> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jul16.084730.1569@illinois.edu>, srobertson@illinois.edu (Seo-yeon Robertson) 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'. -- Liam Andersson Hayes Optima 288 @ 28,800 bps "The carrier frequency does not drift by accident."