Internal soundgen function.
pathfinding_fast(
pitchCands,
pitchCert,
pitchSource,
manual,
pitchCenterGravity,
certWeight
)a matrix of multiple pitch candidates per fft frame. Each column is one fft frame, each row is one candidate (the last row is always "manual")
a matrix of the same dimensionality as pitchCands specifying our certainty in pitch candidates
dataframe giving manual pitch candidates, which the path MUST go through
numeric vector giving the mean of all pitch candidates per fft frame weighted by our certainty in each of these candidates
(0 to 1) in pitch postprocessing, specifies how much we prioritize the certainty of pitch candidates vs. pitch jumps / the internal tension of the resulting pitch curve
Uses a quick-and-simple heuristic to find a reasonable path though pitch candidates. The idea is to start at the median of the center of gravity of pitch candidates over the first/last few frames and then go over the path twice (forward and backward), minimizing the cost of transitions at each step in terms of pitch jumps and distance from high-certainty candidates. The best of these two paths is accepted.