From blopez@illinois.edu Tue Dec 26 06:28:02 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!blopez
From: blopez@illinois.edu (Bill López)
Newsgroups: comp.sys.m68k
Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Dec26.062802.5662@illinois.edu>
Date: Tue, 26 Dec 1995 06:28:02 GMT
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The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard.
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.

-- 
Bill López | blopez@illinois.edu
PGP Key fingerprint: 8C22 8693 9C62 75E8
"Keep the channels open."

From blarsson@pacbell.net Wed Dec 27 06:07:02 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!pacbell!blarsson
From: blarsson@pacbell.net (Brian Larsson)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Dec27.060702.3361@pacbell.net>
Date: Wed, 27 Dec 1995 06:07:02 GMT
References: <1995Dec26.062802.5662@illinois.edu>
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In article <1995Dec26.062802.5662@illinois.edu>, blopez@illinois.edu (Bill López) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.
> Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard.

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

If you are posting from AOL, please read RFC 1036 before posting again.

-- 
=== Brian Larsson ===
Dept of Electrical Engineering, Pacific Bell Internet Services
"Marcus is not one man."

From gmartinez@kth.se Thu Dec 28 17:24:02 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!kth!gmartinez
From: gmartinez@kth.se (Graham Martínez)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Dec28.172402.5073@kth.se>
Date: Thu, 28 Dec 1995 17:24:02 GMT
References: <1995Dec26.062802.5662@illinois.edu> <1995Dec27.060702.3361@pacbell.net>
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In article <1995Dec27.060702.3361@pacbell.net>, blarsson@pacbell.net (Brian Larsson) writes:
> I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'.

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

-- 
=== Graham Martínez ===
Dept of Electrical Engineering, Royal Institute of Technology, Stockholm
"There are 14 nodes and only 10 countries. Count again."

From jmuller@rwth-aachen.de Thu Dec 28 19:59:02 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!rwth-aachen!jmuller
From: jmuller@rwth-aachen.de (Jen Müller)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Dec28.195902.9515@rwth-aachen.de>
Date: Thu, 28 Dec 1995 19:59:02 GMT
References: <1995Dec26.062802.5662@illinois.edu>
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In article <1995Dec26.062802.5662@illinois.edu>, blopez@illinois.edu (Bill López) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.
> Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard.

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

-- 
Jen Müller | jmuller@rwth-aachen.de
PGP Key fingerprint: 0DA9 9CFE 5C4F D3E6
"Keep the channels open."