From mstewart@delphi.com Fri Jul 21 00:01:48 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!delphi!mstewart
From: mstewart@delphi.com (Mikhail Stewart)
Newsgroups: comp.sys.m68k
Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul21.000148.8795@delphi.com>
Date: Fri, 21 Jul 1995 00:01:48 GMT
Organization: Delphi Internet Services
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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.
Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard.

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

-- 
Mikhail Stewart | mstewart@delphi.com
PGP Key fingerprint: D387 3BF7 DF9E 984C
"Keep the channels open."

From bmoreau@earthlink.net Sat Jul 22 10:39:48 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!earthlink!bmoreau
From: bmoreau@earthlink.net (Bill Moreau)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul22.103948.4687@earthlink.net>
Date: Sat, 22 Jul 1995 10:39:48 GMT
References: <1995Jul21.000148.8795@delphi.com>
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In article <1995Jul21.000148.8795@delphi.com>, mstewart@delphi.com (Mikhail Stewart) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market.

-- 
Bill Moreau
Tape trading list upon request. SASE required for international mail.

From rpopov@inria.fr Mon Jul 24 08:56:48 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!inria!rpopov
From: rpopov@inria.fr (Renata Popov)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul24.085648.6458@inria.fr>
Date: Mon, 24 Jul 1995 08:56:48 GMT
References: <1995Jul21.000148.8795@delphi.com>
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In article <1995Jul21.000148.8795@delphi.com>, mstewart@delphi.com (Mikhail Stewart) 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.

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

-- 
Renata Popov -- INRIA Rocquencourt
"The carrier frequency does not drift by accident."

From meriksson@illinois.edu Wed Jul 26 00:07:48 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!illinois!meriksson
From: meriksson@illinois.edu (Marta Eriksson)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul26.000748.9738@illinois.edu>
Date: Wed, 26 Jul 1995 00:07:48 GMT
References: <1995Jul21.000148.8795@delphi.com> <1995Jul24.085648.6458@inria.fr>
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In article <1995Jul24.085648.6458@inria.fr>, rpopov@inria.fr (Renata Popov) writes:
> Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1...

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

-- 
Marta Eriksson
Tape trading list upon request. SASE required for international mail.

From joliveira@delphi.com Fri Jul 28 01:23:48 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!delphi!joliveira
From: joliveira@delphi.com (Jens Oliveira)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul28.012348.7755@delphi.com>
Date: Fri, 28 Jul 1995 01:23:48 GMT
References: <1995Jul21.000148.8795@delphi.com> <1995Jul24.085648.6458@inria.fr>
Organization: Delphi Internet Services
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In article <1995Jul24.085648.6458@inria.fr>, rpopov@inria.fr (Renata Popov) writes:
> Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1...

The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition.

-- 
=== Jens Oliveira ===
Dept of Electrical Engineering, Delphi Internet Services
"Tape doesn't lie at 02:14. Ears do."