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Fix .wav files to allow importing them into R

Source: R/fix_wavs.R
fix_wavs.Rd

fix_wavs fixes sound files in .wav format so they can be imported into R.

Usage

fix_wavs(
  checksels = NULL,
  files = NULL,
  samp.rate = NULL,
  bit.depth = NULL,
  path = NULL,
  mono = FALSE
)

Arguments

checksels

Data frame with results from check_sels. Default is NULL. If both 'checksels' and 'files' are NULL then all files in 'path' are converted. Note that it only fixes/convert sound files in .wav format.

files

Character vector with the names of the .wav files to fix. Default is NULL. If both 'checksels' and 'files' are NULL then all files in 'path' are converted.

samp.rate

Numeric vector of length 1 with the sampling rate (in kHz) for output files. Default is NULL. (remain unchanged).

bit.depth

Numeric vector of length 1 with the dynamic interval (i.e. bit depth) for output files. Default is NULL (remain unchanged).

path

Character string containing the directory path where the sound files are located. If NULL (default) then the current working directory is used.

mono

Logical indicating if stereo (2 channel) files should be converted to mono (1 channel). Default is FALSE (remain unchanged).

Value

A folder inside the working directory (or path provided) all 'converted_sound_files', containing sound files in a format that can be imported in R.

Details

This function aims to simplify the process of converting sound files that cannot be imported into R and/or homogenizing sound files. Problematic files can be determined using check_sound_files or check_sels. The check_sels output can be directly input using the argument 'checksels'. Alternatively a vector of file names to be "fixed" can be provided (argument 'files'). If neither of those 2 are provided the function will convert all .wav sound files in the working directory to the specified sample rate/bit depth. Files are saved in a new directory ('converted_sound_files'). Internally the function calls SOX (SOX must be installed). If both 'checksels' and 'files' are NULL then all files in 'path' are converted. Note that it only fixes/convert sound files in .wav format.

References

Araya-Salas, M., & Smith-Vidaurre, G. (2017). warbleR: An R package to streamline analysis of animal acoustic signals. Methods in Ecology and Evolution, 8(2), 184-191.

Author

Marcelo Araya-Salas (marcelo.araya@ucr.ac.cr)

Examples

if (FALSE) { # \dontrun{
# Load example files and save to temporary working directory
data(list = c("Phae.long1", "Phae.long2", "Phae.long3", "Phae.long4", "lbh_selec_table"))
writeWave(Phae.long1, file.path(tempdir(), "Phae.long1.wav"))
writeWave(Phae.long2, file.path(tempdir(), "Phae.long2.wav"))
writeWave(Phae.long3, file.path(tempdir(), "Phae.long3.wav"))
writeWave(Phae.long4, file.path(tempdir(), "Phae.long4.wav"))

fix_wavs(files = lbh_selec_table$sound.files, path = tempdir())

# check this folder
tempdir()
} # }