Hi all
 
I am doing some experimental work with software radio and have moved from
static languages through Python and now want to see just how far I can get
in Smalltalk. My preliminary analysis of Squeak indicates it should be
capable on a fast enough machine and after playing around a bit I like the
Squeak environment. I have two fundamental requirements, to do Port I/O and
full duplex stereo sound. For Port I/O I found IOST which will probably do
the job although untried as yet. Now to the actual question -)
 
I have been using PortAudio for sound in other environments, which I like a
lot, but there seems to be no Squeak interface available. I might try to do
one but that's for later... For now I have been playing with
'SoundInputStream' for capture and 'QueueSound' for playback. I need to do
this in a real-time stream, so read a block, signal process the block and
output the block. As I don't know smalltalk at all I am just playing in a
workspace. I can stream in some data but can't seem to add that data to the
output queue. I can add a SampledSound to the queue as in the example but
the captured data seems to be the wrong type or something! Obviously I need
this to work full duplex so will have to use a thread or maybe events to
drive the process. Any code snippets would help a lot at this stage until I
find my feet.
 
Thanks in advance.
 
Bob
 
 
 
Bob Cowdery
CGI Senior Technical Architect
+44(0)1438 791517
Mobile: +44(0)7771 532138
bob.cowdery at cgi-europe.com <mailto:bob.cowdery at cgi-europe.com> 
 
 
 

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