dot-getRMS: RMS amplitude per sound

.getRMSR Documentation

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


soundgen documentation built on Aug. 14, 2022, 5:05 p.m.