findVoicedSegments: Find voiced segments

In tatters/soundgen_beta: Parametric Voice Synthesis

Description

Internal soundgen function.

Usage

findVoicedSegments(pitchCands, shortestSyl, shortestPause, step, samplingRate,
  minVoicedCands)

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)

Details

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

Value

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

tatters/soundgen_beta documentation built on May 14, 2019, 9 a.m.