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67

answers:

1
Q: 

DSP-type effects in realtime on the C64: How is it possible?

I just saw this, and it is one of the most amazing things I've ever seen:

http://www.youtube.com/watch?v=MDrqBYkco-Y

I am not even able to fathom this. What is going on here?

+2  A: 

This paper provides an in-depth explanation of what is going on. The primary technique is voice compression that works the same was as a music sequencer, or tracker, but tailored for voice. This makes it somewhat easy to do pitch and velocity adjustments (since, that's what a tracker does). Throw in some typical C64 trickery to synchronize everything and utilize every CPU cycle.

larsch  2010-10-06 10:33:55

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