From jmartinez@mit.edu Mon Mar 20 00:00:33 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!mit!jmartinez
From: jmartinez@mit.edu (Joachim Martínez)
Newsgroups: comp.sys.m68k
Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Mar20.000033.7119@mit.edu>
Date: Mon, 20 Mar 1995 00:00:33 GMT
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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.

-- 
Joachim Martínez | jmartinez@mit.edu
PGP Key fingerprint: E9AF A38D 1382 0646
"Keep the channels open."

From mkang@hanse.de Wed Mar 22 01:36:33 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!hanse!mkang
From: mkang@hanse.de (Marisol Kang)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Mar22.013633.7393@hanse.de>
Date: Wed, 22 Mar 1995 01:36:33 GMT
References: <1995Mar20.000033.7119@mit.edu>
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In article <1995Mar20.000033.7119@mit.edu>, jmartinez@mit.edu (Joachim Martínez) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'.

-- 
Marisol Kang
Tape trading list upon request. SASE required for international mail.

From pcampbell@pacbell.net Thu Mar 23 19:55:33 1995
Path: ashpoly!cascade!mxgate!coyoacan!pacbell!pcampbell
From: pcampbell@pacbell.net (Pavel Campbell)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Mar23.195533.4279@pacbell.net>
Date: Thu, 23 Mar 1995 19:55:33 GMT
References: <1995Mar20.000033.7119@mit.edu>
Organization: Pacific Bell Internet Services
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In article <1995Mar20.000033.7119@mit.edu>, jmartinez@mit.edu (Joachim Martínez) 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.

I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'.

-- 
Pavel Campbell
Opinions expressed are solely my own and not those of Pacific Bell Internet Services.
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