From skim@hanse.de Sat Nov 18 15:29:15 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!hanse!skim
From: skim@hanse.de (Steve Kim)
Newsgroups: comp.sys.m68k
Subject: Question: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA
Message-ID: <1995Nov18.152915.3034@hanse.de>
Date: Sat, 18 Nov 1995 15:29:15 GMT
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Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler.

The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1.
By setting up Paula's audio DMA to double-buffer incoming 8-bit samples, the 68020 has plenty of cycles left for the Costas loop.

Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames!

-- 
Steve Kim
Tape trading list upon request. SASE required for international mail.

From nvasiliev@uni-hamburg.de Sat Nov 18 21:44:15 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!uni-hamburg!nvasiliev
From: nvasiliev@uni-hamburg.de (Nadine Vasiliev)
Newsgroups: comp.sys.m68k
Subject: Re: Question: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA
Message-ID: <1995Nov18.214415.1271@uni-hamburg.de>
Date: Sat, 18 Nov 1995 21:44:15 GMT
References: <1995Nov18.152915.3034@hanse.de>
Organization: Universität Hamburg Fachbereich Informatik
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In article <1995Nov18.152915.3034@hanse.de>, skim@hanse.de (Steve Kim) writes:
> Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler.

PC users spend $3,000 on Sound Blasters and Pentium chips and still can't do what a $500 Amiga was doing in 1985.

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

-- 
Nadine Vasiliev
Tape trading list upon request. SASE required for international mail.