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Check out Lansky's "Idle Chatter" pieces on his "More Than Idle Chatter"
album. His first chatter piece was written in like 1984 using a
technique called Linear Predictive Coding (which I believe is a form of
Granular Synthesis. ie: the stuttering voices in various Gescom/Ae
tracks)
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LPC isn't the same thing as granular synthesis, though it can be easily abused for granular-type effects. LPC is used primarily in speech compression algorithms. very loosely speaking, the idea is that you analyze a small segment of speech (typically 20ms) and find all the formant frequencies (similar to harmonics). so after you do this analysis you end up with a long series of numbers describing all the frequencies in your voice. the decoder takes this frequency information, uses it to define a filter, runs a periodic noise signal through the filter, and out pops something that sounds like speech. what lansky is doing is repeating segments of frequency data to replay words/phonemes/whatever. that's where all the granular-like effects come from. not only that, but because you have access to all the frequencies in a voice, you can do things like pitch shifting while keeping the time constant. it's really pretty fun to play around with. :)
oh and LPC is the basic technology used in speech compression for cell phones. it's pretty weird to think about how mangled one's voice gets from the time you say it on one end until it gets magically recreated on the other.
ethan
ps - if you're interested in this kind of music/sound, look for speech songs by charles dodge. crazy poetry read by stuttering machines...
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