dot-getPitchZc: Zero-crossing rate per sound

In soundgen: Sound Synthesis and Acoustic Analysis

Zero-crossing rate per sound

Description

Internal soundgen function called by getPitchZc.

Usage

.getPitchZc(
  audio,
  pitchFloor,
  pitchCeiling,
  zcThres,
  zcWin = 5,
  silence = 0.04,
  env = NULL,
  envWin = 5,
  certMethod = c("autocor", "variab")[2]
)

Arguments

audio	a list returned by readAudio
pitchFloor, pitchCeiling	absolute bounds for pitch candidates (Hz)
zcThres	pitch candidates with certainty below this value are treated as noise and set to NA (0 = anything goes, 1 = pitch must be perfectly stable over zcWin)
zcWin	certainty in pitch candidates depends on how stable pitch is over zcWin glottal cycles (odd integer > 3)
silence	minimum root mean square (RMS) amplitude, below which pitch candidates are set to NA (NULL = don't consider RMS amplitude)
env	precalculated envelope (when called internally by .analyze())
envWin	window length for calculating RMS envelope, ms
certMethod	method of calculating pitch certainty: 'autocor' = autocorrelation of pitch estimates per zc over window (a measure of curve smoothness), 'variab' = variability of pitch estimates per zc over window

soundgen documentation built on Sept. 12, 2024, 6:29 a.m.