soundgen (version 1.7.0)

findVoicedSegments: Find voiced segments

Description

Internal soundgen function.

Usage

findVoicedSegments(
  pitchCands,
  shortestSyl,
  shortestPause,
  step,
  samplingRate,
  minVoicedCands,
  pitchMethods,
  manualV = NULL,
  manualUnv = NULL
)

Arguments

pitchCands

matrix of possible pitch values per column. One column is one fft frame, one row is one pitch candidate

shortestSyl

the smallest length of a voiced segment (ms) that constitutes a voiced syllable (shorter segments will be replaced by NA, as if unvoiced)

shortestPause

the smallest gap between voiced syllables (ms) that means they shouldn't be merged into one voiced syllable

step

you can override overlap by specifying FFT step, ms

samplingRate

sampling rate (Hz)

minVoicedCands

a frame is considered to be voiced if at least this many pitch candidates are not NA. Defaults to 2: since dom is usually defined, in practice this means that we also want at least one other pitch candidate (autocor, cep or BaNa)

pitchMethods

methods of pitch tracking in analyze()

Value

Returns a dataframe specifying where each voiced segment starts and ends (in fft frames, not ms!)

Details

Internal helper function for postprocessing of pitch contours. Merges voiced segments at least shortestSyl ms long and separated by less than shortestPause ms. Called by analyze