From khughes@rwth-aachen.de Tue Aug 23 18:26:40 1994
Path: ashpoly!bigsur!pacrim!krgate!eunha!rwth-aachen!khughes
From: khughes@rwth-aachen.de (Kenji Hughes)
Newsgroups: comp.sys.m68k
Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Aug23.182640.4850@rwth-aachen.de>
Date: Tue, 23 Aug 1994 18:26:40 GMT
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Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus.
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.

-- 
Kenji Hughes
Tape trading list upon request. SASE required for international mail.

From fnilsson@unam.mx Wed Aug 24 15:52:40 1994
Path: ashpoly!cascade!transat!ukc!fennimore!unam!fnilsson
From: fnilsson@unam.mx (Fiona Nilsson)
Newsgroups: comp.sys.m68k
Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1994Aug24.155240.7616@unam.mx>
Date: Wed, 24 Aug 1994 15:52:40 GMT
References: <1994Aug23.182640.4850@rwth-aachen.de>
Organization: Universidad Nacional Autónoma de México (DGSCA)
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In article <1994Aug23.182640.4850@rwth-aachen.de>, khughes@rwth-aachen.de (Kenji Hughes) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.
> The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus.

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

-- 
=== Fiona Nilsson ===
Dept of Electrical Engineering, Universidad Nacional Autónoma de México (DGSCA)
"Tape doesn't lie at 02:14. Ears do."