pitch_overlay: Overlay pitch on plot frame

In praatpicture: 'Praat Picture' Style Plots of Acoustic Data

Overlay pitch on plot frame

Description

Function for overlaying pitch contour on another plot frame, viz. the waveform or spectrogram. Instead of using this function directly, just use praatpicture('my_sound_file') with pitch_plotOnSpec or pitch_plotOnWave set to TRUE.

Usage

pitch_overlay(
  pt,
  bottomRange,
  topRange,
  start,
  org_start = 0,
  tfrom0 = TRUE,
  freqRange = NULL,
  plotType = "draw",
  scale = "hz",
  color = "black",
  ind = NULL,
  drawSize = 1,
  speckleSize = 1,
  axisLabel = NULL,
  min_max_only = TRUE,
  highlight = NULL,
  intensity_overlay = FALSE
)

Arguments

pt	PitchTier object loaded using rPraat::pt.read or other object formatted in a similar way, i.e. a list object containing the elements t (a vector of time values) and f (a vector of frequency values) of identical length.
bottomRange	Bottom y-axis range of the plot frame that pitch is plotted on.
topRange	Top y-axis range of the plot frame that pitch is plotted on.
start	Start time (in seconds) of desired plotted area.
org_start	Start time (in seconds) of desired plotted area in the original sound file.
tfrom0	Logical; should time on the x-axis run from 0 or from the original time? Default is TRUE.
freqRange	Vector of two integers giving the frequency range to be used for producing pitch plots. Default is NULL, in which case the pitch range is automatically reset to c(-12,30) for the semitones scale, c(0,10) for the erb scale, and c(50,500) for the Hz-based scales, following Praat defaults.
plotType	String giving the type of pitch plot to produce; default is draw (a line plot), the only other option is speckle (a point plot). Alternatively a vector c('draw','speckle') can be passed, in which case both are used.
scale	String giving the frequency scale to use when producing pitch plots. Default is hz; other options are logarithmic (also in Hz), semitones, erb, and mel.
color	String giving the name of the color to be used for plotting pitch. Default is 'black'.
ind	Integer indexing current plot frame relative to other plot components. Default is NULL.
drawSize	Number indicating the line width if plotType is 'draw'. Default is 1. Controls the lwd argument of graphics::lines.
speckleSize	Number indicating the point size of if ⁠_plotType⁠ is 'speckle'. Default is 1. Controls the cex arguments of graphics::points.
axisLabel	String giving the name of the label to print along the y-axis when printing a pitch track. Default is NULL, in which case the axis label will depend on the scale.
min_max_only	Logical; should only minimum and maximum values be given on the y-axis? Default is TRUE. Can also be a logical vector if some but not all plot components should have minimum and maximum values on the y-axis. Ignored for TextGrid component.
highlight	Named list giving parameters for differential highlighting of pitch based on the time domain. This list should contain information about which parts of the plot to highlight, either done with the start and end arguments which must be numbers or numeric vectors, or using the tier and label arguments to highlight based on information in a plotted TextGrid. Further contains the optional arguments color (string or vector of strings, see color), drawSize or speckleSize (both numeric), and background (a string specifying a background color).
intensity_overlay	Logical; is intensity also overlaid on the same plot frame? Default is FALSE.

Value

No return values, called internally by praatpicture and sibling functions.

Examples

# Don't use directly
datapath <- system.file('extdata', package='praatpicture')
soundFile <- paste0(datapath, '/1.wav')
praatpicture(soundFile, frames = 'spectrogram', pitch_plotOnSpec = TRUE)

praatpicture documentation built on Dec. 9, 2025, 1:06 a.m.