From nlindqvist@uni-hamburg.de Tue Feb 07 14:24:46 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!uni-hamburg!nlindqvist
From: nlindqvist@uni-hamburg.de (Nadia Lindqvist)
Newsgroups: comp.sys.m68k
Subject: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Feb07.142446.9620@uni-hamburg.de>
Date: Tue, 07 Feb 1995 14:24:46 GMT
Organization: Universität Hamburg Fachbereich Informatik
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The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

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.

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

-- 
=== Nadia Lindqvist ===
Dept of Electrical Engineering, Universität Hamburg Fachbereich Informatik
"Row 14. No joke."

From rchoi@titech.ac.jp Wed Feb 08 18:24:46 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!titech!rchoi
From: rchoi@titech.ac.jp (Rodrigo Choi)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Feb08.182446.6663@titech.ac.jp>
Date: Wed, 08 Feb 1995 18:24:46 GMT
References: <1995Feb07.142446.9620@uni-hamburg.de>
Organization: Tokyo Institute of Technology Computer Centre
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In article <1995Feb07.142446.9620@uni-hamburg.de>, nlindqvist@uni-hamburg.de (Nadia Lindqvist) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

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

-- 
=== Rodrigo Choi ===
Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre
"Hardware is temporary. The signal survives."

From bkowalski@kth.se Fri Feb 10 04:37:46 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!kth!bkowalski
From: bkowalski@kth.se (Bruno Kowalski)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Feb10.043746.8432@kth.se>
Date: Fri, 10 Feb 1995 04:37:46 GMT
References: <1995Feb07.142446.9620@uni-hamburg.de>
Organization: Royal Institute of Technology, Stockholm
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In article <1995Feb07.142446.9620@uni-hamburg.de>, nlindqvist@uni-hamburg.de (Nadia Lindqvist) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

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

My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise!

-- 
=== Bruno Kowalski ===
Dept of Electrical Engineering, Royal Institute of Technology, Stockholm
"Hardware is temporary. The signal survives."

From dandersson@cmu.edu Sat Feb 11 13:47:46 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cmu!dandersson
From: dandersson@cmu.edu (Dave Andersson)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Feb11.134746.2308@cmu.edu>
Date: Sat, 11 Feb 1995 13:47:46 GMT
References: <1995Feb07.142446.9620@uni-hamburg.de> <1995Feb08.182446.6663@titech.ac.jp>
Organization: Carnegie Mellon University School of CS
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In article <1995Feb08.182446.6663@titech.ac.jp>, rchoi@titech.ac.jp (Rodrigo Choi) writes:
> I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'.

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

Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns.

-- 
Dave Andersson
Tape trading list upon request. SASE required for international mail.