Markov chains as sequence arrays

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Topic: Markov chains as sequence arrays

cristian_vogel
Member

posted 03 September 2007 11:55 Edit/Delete Message

MarkovSequencerThingy.kym

I am researching more into sequencing inventions, and was experimenting with the MarkovChain object.

I have come up with this small script to generate the trainingSequence on the fly from VCS parameters... Is there a way that I could randomise / rebuild the Markov sequence once the sound has started running in realtime?

there is a Sequencer Thing example sound -

but here is the script ...

| PitchArray pseq trainingSeq |
trainingSeq := {( 1 to: 8 ) collect: [ :x | 127 nn * ('P' asHotValue suffix2: x ) ]}.
PitchArray :=
MarkovChain trainingSequence: (trainingSeq) chainLength: 1.
pseq := PitchArray newSequenceOfLength: 8 seed: 359.
kbd start: 0 s PSEQ: (pseq asArray) .

[This message has been edited by cristian_vogel (edited 03 September 2007).]

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SSC
Administrator

posted 03 September 2007 16:50 Edit/Delete Message

Not in a Script but, using a Tool, you can write Smalltalk programs that interact with the Event Values in Sounds that are currently running. You probably remember the Markov example that I posted on the tweaky a few months back:
http://www.symbolicsound.com/cgi-bin/bin/view/Share/Tools#InteractivePerformance

Called 'livemarkovkeyboard.zip', it uses the live keyboard input as its training sequence.

More details here: http://www.symbolicsound.com/cgi-bin/bin/view/Share/LiveMarkovKBDDiscussion

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