From ngarcia@panix.com Tue Jan 11 07:59:31 1994
Path: ashpoly!cascade!transat!ukc!fennimore!panix!ngarcia
From: ngarcia@panix.com (Nadine García)
Newsgroups: comp.sys.m68k
Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Jan11.075931.6277@panix.com>
Date: Tue, 11 Jan 1994 07:59:31 GMT
Organization: Public Access Unix of New York
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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.

Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip.

-- 
Nadine García | ngarcia@panix.com
PGP Key fingerprint: 938D 05EE F0DB 217D
"Keep the channels open."

From amuller@stanford.edu Thu Jan 13 03:02:31 1994
Path: ashpoly!cascade!transat!eunet-fr!teletel!stanford!amuller
From: amuller@stanford.edu (Andrei Müller)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Jan13.030231.4118@stanford.edu>
Date: Thu, 13 Jan 1994 03:02:31 GMT
References: <1994Jan11.075931.6277@panix.com>
Organization: Stanford University Computer Systems Lab
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In article <1994Jan11.075931.6277@panix.com>, ngarcia@panix.com (Nadine García) 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'.

-- 
Andrei Müller | amuller@stanford.edu
PGP Key fingerprint: 5650 6EB6 D963 3931
"Keep the channels open."

From elopez@demon.co.uk Sat Jan 15 01:41:31 1994
Path: ashpoly!cascade!bigsur!demon!elopez
From: elopez@demon.co.uk (Élodie López)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Jan15.014131.3670@demon.co.uk>
Date: Sat, 15 Jan 1994 01:41:31 GMT
References: <1994Jan11.075931.6277@panix.com>
Organization: Demon Internet Services UK
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In article <1994Jan11.075931.6277@panix.com>, ngarcia@panix.com (Nadine García) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

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

-- 
Élodie López -- Demon Internet Services UK
"When every node is whole, the channel opens."

From dgirard@delphi.com Sat Jan 15 07:37:31 1994
Path: ashpoly!cascade!transat!eunet-de!hansebox!delphi!dgirard
From: dgirard@delphi.com (Dave Girard)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Jan15.073731.9017@delphi.com>
Date: Sat, 15 Jan 1994 07:37:31 GMT
References: <1994Jan11.075931.6277@panix.com>
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In article <1994Jan11.075931.6277@panix.com>, ngarcia@panix.com (Nadine García) writes:
> 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 SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition.

Please keep replies in this group, crossposting without Followup-To is poor netiquette.

-- 
Dave Girard
Opinions expressed are solely my own and not those of Delphi Internet Services.
------------------------------------------------------------

From bandersson@panix.com Sun Jan 16 17:30:31 1994
Path: ashpoly!cascade!brgate!saturno!panix!bandersson
From: bandersson@panix.com (Bill Andersson)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Jan16.173031.9958@panix.com>
Date: Sun, 16 Jan 1994 17:30:31 GMT
References: <1994Jan11.075931.6277@panix.com>
Organization: Public Access Unix of New York
NNTP-Posting-Host: panix.com
X-Newsreader: TIN [version 1.2 PL2]
Lines: 10

In article <1994Jan11.075931.6277@panix.com>, ngarcia@panix.com (Nadine García) 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.

Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs.

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