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[Discuss-gnuradio] More Sheeva plug experiments
From: |
Marcus D. Leech |
Subject: |
[Discuss-gnuradio] More Sheeva plug experiments |
Date: |
Sat, 10 Apr 2010 00:32:32 -0400 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.0.4-1.fc12 Thunderbird/3.0.4 |
I now have my 'plug acting as a simple data pump for its audio
subsytem--nearly-trivial Gnu Radio
flowgraph that copies the audio bandwidth over a UDP flow, using
16-bit "shorts", the only thing it
does to the audio data is to multiply it by a constant passed in on
the command line to the flowgraph.
The little Sheeva plug is using about 7% of its CPU to do this.
So, it could handle multiple audio systems this way.
The SID receiver graph has a version that takes its input from a UDP
flow (via a named-pipe because of
some weirdness in the UDP Source block in Gnu Radio), and does all the
usual processing.
Food for thought....
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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