From agirard@mit.edu Fri Jul 19 21:26:32 1996
Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!agirard
From: agirard@mit.edu (Amy Girard)
Newsgroups: comp.sys.m68k
Subject: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Jul19.212632.1511@mit.edu>
Date: Fri, 19 Jul 1996 21:26:32 GMT
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Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor.
The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise.

Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation.

-- 
Amy Girard
Opinions expressed are solely my own and not those of Massachusetts Institute of Technology.
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From hivanov@purdue.edu Sun Jul 21 15:09:32 1996
Path: ashpoly!bigsur!pacrim!krgate!eunha!purdue!hivanov
From: hivanov@purdue.edu (Hana Ivanov)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Jul21.150932.1419@purdue.edu>
Date: Sun, 21 Jul 1996 15:09:32 GMT
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In article <1996Jul19.212632.1511@mit.edu>, agirard@mit.edu (Amy Girard) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

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

-- 
Hana Ivanov
Tape trading list upon request. SASE required for international mail.