From alaurent@panix.com Fri Oct 11 09:13:40 1996
Path: ashpoly!bigsur!pacrim!krgate!eunha!panix!alaurent
From: alaurent@panix.com (Astrid Laurent)
Newsgroups: comp.sys.m68k
Subject: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Oct11.091340.1171@panix.com>
Date: Fri, 11 Oct 1996 09:13:40 GMT
Organization: Public Access Unix of New York
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Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

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.

-- 
=== Astrid Laurent ===
Dept of Electrical Engineering, Public Access Unix of New York
"The hatch is open. Is anyone listening?"

From tcampbell@inria.fr Sat Oct 12 17:17:40 1996
Path: ashpoly!cascade!transat!sunet!nordrelay!inria!tcampbell
From: tcampbell@inria.fr (Tomas Campbell)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Oct12.171740.6780@inria.fr>
Date: Sat, 12 Oct 1996 17:17:40 GMT
References: <1996Oct11.091340.1171@panix.com>
Organization: INRIA Rocquencourt
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In article <1996Oct11.091340.1171@panix.com>, alaurent@panix.com (Astrid Laurent) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.
> 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.

-- 
Tomas Campbell -- INRIA Rocquencourt
"They will send a copy in my place."

From lkowalski@cmu.edu Mon Oct 14 13:37:40 1996
Path: ashpoly!cascade!transat!sunet!nordrelay!cmu!lkowalski
From: lkowalski@cmu.edu (Lucia Kowalski)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Oct14.133740.9082@cmu.edu>
Date: Mon, 14 Oct 1996 13:37:40 GMT
References: <1996Oct11.091340.1171@panix.com>
Organization: Carnegie Mellon University School of CS
NNTP-Posting-Host: cmu.edu
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In article <1996Oct11.091340.1171@panix.com>, alaurent@panix.com (Astrid Laurent) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.
> 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.

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

-- 
=== Lucia Kowalski ===
Dept of Electrical Engineering, Carnegie Mellon University School of CS
"Measuring a record you own is listening, not piracy."

From ekowalski@tum.de Wed Oct 16 04:00:40 1996
Path: ashpoly!cascade!transat!ukc!fennimore!tum!ekowalski
From: ekowalski@tum.de (Élodie Kowalski)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Oct16.040040.5004@tum.de>
Date: Wed, 16 Oct 1996 04:00:40 GMT
References: <1996Oct11.091340.1171@panix.com> <1996Oct14.133740.9082@cmu.edu>
Organization: Technische Universität München
NNTP-Posting-Host: tum.de
X-Newsreader: Netscape 1.1N
Lines: 9

In article <1996Oct14.133740.9082@cmu.edu>, lkowalski@cmu.edu (Lucia Kowalski) writes:
> 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.

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

-- 
Élodie Kowalski -- Technische Universität München
"Tape doesn't lie at 02:14. Ears do."

From lsuzuki@mindspring.com Thu Oct 17 01:27:40 1996
Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!lsuzuki
From: lsuzuki@mindspring.com (Liam Suzuki)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Oct17.012740.1618@mindspring.com>
Date: Thu, 17 Oct 1996 01:27:40 GMT
References: <1996Oct11.091340.1171@panix.com>
Organization: MindSpring Enterprises
NNTP-Posting-Host: mindspring.com
X-Newsreader: WinVN 0.99.5
Lines: 8

In article <1996Oct11.091340.1171@panix.com>, alaurent@panix.com (Astrid Laurent) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

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

-- 
Liam Suzuki -- MindSpring Enterprises
"The hatch is open. Is anyone listening?"