Why is it that, if I zoom into a .pitch file in Praat, the little numbers (pitch candidates) that are displayed are stacked into vertical lines?
Linguistics Stack Exchange is a question and answer site for professional linguists and others with an interest in linguistic research and theory. It only takes a minute to sign up.Sign up to join this community
The vertical "stacks" correspond to frames; in other words, the pitch candidates are stacked vertically because Praat attempts to measure the "pitch" (actually fundamental frequency) at every frame. The horizontal placement of each stack corresponds to the occurrence of each successive frame over time, which is why they are equally spaced. The vertical placement of each candidate in the stack is dictated by its frequency (in Hz), as specified by the frequency axis on the right.
The numbers at the very top are not pitch candidates, but rather measures of relative intensity of the sound in each frame.
You can read more about the display of the PitchEditor on this Praat help page.