From tkim@panix.com Sat Mar 12 05:04:18 1994
Path: ashpoly!bigsur!pacrim!jpgate!kamome!panix!tkim
From: tkim@panix.com (Tyler Kim)
Newsgroups: comp.sys.m68k
Subject: [INFO] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Mar12.050418.3941@panix.com>
Date: Sat, 12 Mar 1994 05:04:18 GMT
Organization: Public Access Unix of New York
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Real-time spectral waterfall and DBPSK demodulator for TOS 4.04.

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.

-- 
Tyler Kim <tkim@panix.com>
Practical Peripherals 14.4 @ 28,800 bps
"Do not worship the copy."

From mpark@demon.co.uk Sun Mar 13 01:39:18 1994
Path: ashpoly!cascade!transat!sunet!nordrelay!demon!mpark
From: mpark@demon.co.uk (Mateo Park)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Mar13.013918.1633@demon.co.uk>
Date: Sun, 13 Mar 1994 01:39:18 GMT
References: <1994Mar12.050418.3941@panix.com>
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In article <1994Mar12.050418.3941@panix.com>, tkim@panix.com (Tyler Kim) writes:
> Real-time spectral waterfall and DBPSK demodulator for TOS 4.04.

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

Top-posters will be placed in my ~/.killfile without notice.

-- 
Mateo Park | mpark@demon.co.uk
PGP Key fingerprint: F02B 1D62 05DD 2CEE
"Keep the channels open."