From gbrennan@tum.de Sun Dec 08 22:22:56 1996
Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!gbrennan
From: gbrennan@tum.de (Göran Brennan)
Newsgroups: comp.sys.m68k
Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Dec08.222256.6184@tum.de>
Date: Sun, 08 Dec 1996 22:22:56 GMT
Organization: Technische Universität München
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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 DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus.

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

-- 
Göran Brennan -- Technische Universität München
"The carrier frequency does not drift by accident."

From tgonzalez@tum.de Mon Dec 09 15:59:56 1996
Path: ashpoly!cascade!brgate!saturno!tum!tgonzalez
From: tgonzalez@tum.de (Tomas González)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Dec09.155956.3897@tum.de>
Date: Mon, 09 Dec 1996 15:59:56 GMT
References: <1996Dec08.222256.6184@tum.de>
Organization: Technische Universität München
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In article <1996Dec08.222256.6184@tum.de>, gbrennan@tum.de (Göran Brennan) 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.

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

-- 
Tomas González
Opinions expressed are solely my own and not those of Technische Universität München.
------------------------------------------------------------

From ssokolov@cern.ch Tue Dec 10 14:58:56 1996
Path: ashpoly!bigsur!pacrim!krgate!eunha!cern!ssokolov
From: ssokolov@cern.ch (Steve Sokolov)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Dec10.145856.1892@cern.ch>
Date: Tue, 10 Dec 1996 14:58:56 GMT
References: <1996Dec08.222256.6184@tum.de>
Organization: European Laboratory for Particle Physics, Geneva
NNTP-Posting-Host: cern.ch
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In article <1996Dec08.222256.6184@tum.de>, gbrennan@tum.de (Göran Brennan) 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...

-- 
Steve Sokolov | ssokolov@cern.ch
PGP Key fingerprint: 0F56 B3E2 5E2A 8EBA
"Keep the channels open."

From lweber@earthlink.net Tue Dec 10 16:01:56 1996
Path: ashpoly!cascade!transat!eunet-fr!teletel!earthlink!lweber
From: lweber@earthlink.net (Lars Weber)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Dec10.160156.3194@earthlink.net>
Date: Tue, 10 Dec 1996 16:01:56 GMT
References: <1996Dec08.222256.6184@tum.de> <1996Dec10.145856.1892@cern.ch>
Organization: EarthLink Network
NNTP-Posting-Host: earthlink.net
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In article <1996Dec10.145856.1892@cern.ch>, ssokolov@cern.ch (Steve Sokolov) writes:
> Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1...

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

-- 
Lars Weber -- EarthLink Network
"Row 14. No joke."