// Flip: turns the last N samples into a vector in the UAna domain// UnFlip: turns a UAna frame back into the time domain via overlap add// author: Ge Wang (ge@ccrma.stanford.edu)//         Rebecca Fiebrink (fiebrink@cs.princeton.edu) // identity testSinOsc s => Flip flip =^ UnFlip unflip => dac; // set size512 => flip.size => unflip.size; // gowhile( true ){    // do it    unflip.upchuck();    // hop    unflip.size()::samp => now;}