soundgen (version 2.3.0)

.getLoudness: Loudness per sound

Description

Internal soundgen function

Usage

.getLoudness(
  audio,
  windowLength = 50,
  step = NULL,
  overlap = 50,
  SPL_measured = 70,
  Pref = 2e-05,
  spreadSpectrum = TRUE,
  plot = TRUE,
  savePlots = NULL,
  main = NULL,
  ylim = NULL,
  width = 900,
  height = 500,
  units = "px",
  res = NA,
  mar = c(5.1, 4.1, 4.1, 4.1),
  ...
)

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, %

SPL_measured

sound pressure level at which the sound is presented, dB

Pref

reference pressure, Pa (currently has no effect on the estimate)

spreadSpectrum

if TRUE, applies a spreading function to account for frequency masking

plot

should a spectrogram be plotted? TRUE / FALSE

savePlots

full path to the folder in which to save the plots (NULL = don't save, '' = same folder as audio)

main

graphical parameters for plotting

ylim

frequency range to plot, kHz (defaults to 0 to Nyquist frequency). NB: still in kHz, even if yScale = bark or mel

width

graphical parameters for saving plots passed to png

height

graphical parameters for saving plots passed to png

units

graphical parameters for saving plots passed to png

res

graphical parameters for saving plots passed to png

mar

margins of the spectrogram

...

other plotting parameters passed to spectrogram