dot-getRMS: RMS amplitude per sound

In tatters/soundgen: Sound Synthesis and Acoustic Analysis

RMS amplitude per sound

Description

Internal soundgen function called by getRMS.

Usage

.getRMS(
  audio,
  windowLength = 50,
  step = NULL,
  overlap = 75,
  stereo = c("left", "right", "average", "both")[1],
  killDC = FALSE,
  normalize = TRUE,
  windowDC = 200,
  plot = TRUE,
  main = NULL,
  xlab = "",
  ylab = "",
  type = "b",
  col = "green",
  lwd = 2,
  width = 900,
  height = 500,
  units = "px",
  res = NA,
  ...
)

Arguments

audio	a list returned by readAudio
windowLength	length of FFT window, ms
step	you can override overlap by specifying FFT step, ms (NB: because digital audio is sampled at discrete time intervals of 1/samplingRate, the actual step and thus the time stamps of STFT frames may be slightly different, eg 24.98866 instead of 25.0 ms)
overlap	overlap between successive FFT frames, %
stereo	'left' = only left channel, 'right' = only right channel, 'average' = take the mean of the two channels, 'both' = return RMS for both channels separately
killDC	if TRUE, removed DC offset (see also flatEnv)
normalize	if TRUE, the RMS amplitude is returned as proportion of the maximum possible amplitude as given by scale
windowDC	the window for calculating DC offset, ms
plot	if TRUE, plot a contour of RMS amplitude
xlab, ylab, main	general graphical parameters
type, col, lwd	graphical parameters pertaining to the RMS envelope
width, height, units, res	graphical parameters for saving plots passed to png
...	other graphical parameters

tatters/soundgen documentation built on Aug. 22, 2023, 4:24 p.m.