From mcampbell@hanse.de Mon Sep 19 04:01:58 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!hanse!mcampbell From: mcampbell@hanse.de (Marisol Campbell) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep19.040158.8299@hanse.de> Date: Mon, 19 Sep 1994 04:01:58 GMT Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Marisol Campbell *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0 From mdubois@tum.de Tue Sep 20 12:43:58 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!mdubois From: mdubois@tum.de (Matthias Dubois) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep20.124358.9971@tum.de> Date: Tue, 20 Sep 1994 12:43:58 GMT References: <1994Sep19.040158.8299@hanse.de> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Sep19.040158.8299@hanse.de>, mcampbell@hanse.de (Marisol Campbell) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- === Matthias Dubois === Dept of Electrical Engineering, Technische Universität München "Row 14. No joke." From tlarsson@tum.de Thu Sep 22 06:33:58 1994 Path: ashpoly!cascade!transat!ukc!fennimore!tum!tlarsson From: tlarsson@tum.de (Takeshi Larsson) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep22.063358.7655@tum.de> Date: Thu, 22 Sep 1994 06:33:58 GMT References: <1994Sep19.040158.8299@hanse.de> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Sep19.040158.8299@hanse.de>, mcampbell@hanse.de (Marisol Campbell) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Takeshi Larsson SupraFAXModem 28.8 @ 28,800 bps "They will send a copy in my place." From hperez@uni-hamburg.de Thu Sep 22 19:29:58 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!uni-hamburg!hperez From: hperez@uni-hamburg.de (Heather Pérez) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep22.192958.8511@uni-hamburg.de> Date: Thu, 22 Sep 1994 19:29:58 GMT References: <1994Sep19.040158.8299@hanse.de> <1994Sep22.063358.7655@tum.de> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1994Sep22.063358.7655@tum.de>, tlarsson@tum.de (Takeshi Larsson) 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'. -- Heather Pérez -- Universität Hamburg Fachbereich Informatik "We don't sign stars. We build them."