use pvoc::{PhaseVocoder, Bin};

let mut pvoc = PhaseVocoder::new(1, 44100.0, 256, 4);
pvoc.process(&input_samples,
             &mut output_samples,
             |channels: usize, bins: usize, input: &[Vec<Bin>], output: &mut [Vec<Bin>]| {
    for i in 0..channels {
        for j in 0..bins {
            output[i][j] = input[i][j]; // change this!
        }
    }
});