From sfischer@stanford.edu Mon May 15 07:41:18 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!stanford!sfischer
From: sfischer@stanford.edu (Sun-mi Fischer)
Newsgroups: comp.sys.m68k
Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995May15.074118.9021@stanford.edu>
Date: Mon, 15 May 1995 07:41:18 GMT
Organization: Stanford University Computer Systems Lab
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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.

-- 
Sun-mi Fischer
Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab.
------------------------------------------------------------

From astewart@hanse.de Wed May 17 10:26:18 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!hanse!astewart
From: astewart@hanse.de (Anton Stewart)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995May17.102618.9387@hanse.de>
Date: Wed, 17 May 1995 10:26:18 GMT
References: <1995May15.074118.9021@stanford.edu>
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In article <1995May15.074118.9021@stanford.edu>, sfischer@stanford.edu (Sun-mi Fischer) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1...

-- 
Anton Stewart -- Hanse-Netzwerk Hamburg
"The carrier frequency does not drift by accident."

From aoliveira@hanse.de Thu May 18 14:48:18 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!hanse!aoliveira
From: aoliveira@hanse.de (Amy Oliveira)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995May18.144818.6135@hanse.de>
Date: Thu, 18 May 1995 14:48:18 GMT
References: <1995May15.074118.9021@stanford.edu>
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In article <1995May15.074118.9021@stanford.edu>, sfischer@stanford.edu (Sun-mi Fischer) writes:
> 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 SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition.

-- 
Amy Oliveira
Tape trading list upon request. SASE required for international mail.