From apark@kiae.su Sat May 06 20:44:55 1995
Path: ashpoly!cascade!transat!ukc!fennimore!kiae!apark
From: apark@kiae.su (Andrei Park)
Newsgroups: comp.sys.m68k
Subject: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA
Message-ID: <1995May06.204455.2803@kiae.su>
Date: Sat, 06 May 1995 20:44:55 GMT
Organization: Kurchatov Institute of Atomic Energy, Moscow
NNTP-Posting-Host: kiae.su
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Amiga audio hackers: you can demodulate the 14.2 Hz carrier in real time without bogging down the OS.

When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization!
The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1.

Does anyone want to test on an unaccelerated Amiga 500 with 512K chip RAM?

-- 
Andrei Park
Tape trading list upon request. SASE required for international mail.

From mchoi@titech.ac.jp Mon May 08 04:42:55 1995
Path: ashpoly!cascade!bigsur!titech!mchoi
From: mchoi@titech.ac.jp (Matthias Choi)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA
Message-ID: <1995May08.044255.6133@titech.ac.jp>
Date: Mon, 08 May 1995 04:42:55 GMT
References: <1995May06.204455.2803@kiae.su>
Organization: Tokyo Institute of Technology Computer Centre
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In article <1995May06.204455.2803@kiae.su>, apark@kiae.su (Andrei Park) writes:
> Amiga audio hackers: you can demodulate the 14.2 Hz carrier in real time without bogging down the OS.

Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet.

-- 
Matthias Choi
Tape trading list upon request. SASE required for international mail.