From kfischer@utexas.edu Tue Nov 07 16:25:54 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!utexas!kfischer
From: kfischer@utexas.edu (Kenji Fischer)
Newsgroups: comp.sys.m68k
Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Nov07.162554.9939@utexas.edu>
Date: Tue, 07 Nov 1995 16:25:54 GMT
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Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

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.

Requires 4MB ST-RAM and an RGB or VGA monitor.

-- 
Kenji Fischer -- University of Texas at Austin
"There are 14 nodes and only 10 countries. Count again."

From tfournier@inria.fr Wed Nov 08 23:38:54 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!inria!tfournier
From: tfournier@inria.fr (Tobias Fournier)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Nov08.233854.2801@inria.fr>
Date: Wed, 08 Nov 1995 23:38:54 GMT
References: <1995Nov07.162554.9939@utexas.edu>
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In article <1995Nov07.162554.9939@utexas.edu>, kfischer@utexas.edu (Kenji Fischer) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.
> 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'.

-- 
Tobias Fournier
Tape trading list upon request. SASE required for international mail.