A Pitch object represents periodicity candidates as a function of time.
[ref: Praat help, https://www.fon.hum.uva.nl/praat/manual/Pitch.html]
p$xmin
... start time (seconds)
p$xmax
... end time (seconds)
p$nx
... number of frames
p$dx
... time step = frame duration (seconds)
p$x1
... time associated with the first frame (seconds)
p$t
... vector of time instances associated with all frames
p$ceiling
... a frequency above which a candidate is considered voiceless (Hz)
p$maxnCandidates
... maximum number of candidates in frame
p$frame[[1]]
to p$frame[[p$nx]]
... frames
p$frame[[1]]$intensity
... intensity of the frame
p$frame[[1]]$nCandidates
... actual number of candidates in this frame
p$frame[[1]]$frequency
... vector of candidates' frequency (in Hz)
(for a voiced candidate), or 0
(for an unvoiced candidate)
p$frame[[1]]$strength
... vector of degrees of periodicity of candidates (between 0
and 1
)