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Get sound file parameter information

Source: R/info_sound_files.R
info_sound_files.Rd

info_sound_files summariz sound file information

Usage

info_sound_files(path = NULL, files = NULL, parallel = 1, pb = TRUE, skip.error = FALSE,
file.format = "\\.wav$|\\.wac$|\\.mp3$|\\.flac$")

Arguments

path

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

files

character vector indicating the set of files that will be consolidated. File names should not include the full file path. Optional.

parallel

Numeric. Controls whether parallel computing is applied. It specifies the number of cores to be used. Default is 1 (i.e. no parallel computing).

pb

Logical argument to control progress bar and messages. Default is TRUE.

skip.error

Logical to control if errors are omitted. If so, files that could not be read will be excluded and their name printed in the console. Default is FALSE, which will return an error if some files are problematic.

file.format

Character string with the format of sound files. By default all sound file formats supported by warbleR are included ("\\.wav$|\\.wac$|\\.mp3$|\\.flac$"). Note that several formats can be included using regular expression syntax as in grep. For instance "\\.wav$|\\.mp3$" will only include .wav and .mp3 files.

Value

A data frame with descriptive information about the sound files in the working directory (or 'path'). See "details".

Details

This function is a wrapper for selection_table that returns a data frame with the following descriptive parameters for each sound file in the working directory (or 'path'):

  • duration: duration of selection in seconds

  • sample.rate: sampling rate in kHz

  • channels: number of channels

  • bits: bit depth

  • wav.size: sound file size in MB

  • samples: number of samples in the sound file

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.

See also

fix_wavs, selection_table & check_sels

Author

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

Examples

{
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"))

#get info
info_sound_files(path = tempdir())
}
#>         sound.files  duration sample.rate channels bits wav.size samples
#> 1  Phae.long1-1.wav 0.2730667        22.5        1   16 0.012332    6144
#> 2  Phae.long1-2.wav 0.2630667        22.5        1   16 0.011882    5919
#> 3  Phae.long1-3.wav 0.2749333        22.5        1   16 0.012416    6186
#> 4    Phae.long1.wav 2.5000444        22.5        1   16 0.112582   56251
#> 5  Phae.long2-1.wav 0.2325778        22.5        1   16 0.010510    5233
#> 6  Phae.long2-2.wav 0.2261333        22.5        1   16 0.010220    5088
#> 7    Phae.long2.wav 1.7000444        22.5        1   16 0.076582   38251
#> 8  Phae.long3-1.wav 0.2312444        22.5        1   16 0.010450    5203
#> 9  Phae.long3-2.wav 0.2301778        22.5        1   16 0.010402    5179
#> 10 Phae.long3-3.wav 0.2312000        22.5        1   16 0.010448    5202
#> 11   Phae.long3.wav 2.2000000        22.5        1   16 0.099080   49500
#> 12 Phae.long4-1.wav 0.2454222        22.5        1   16 0.011088    5522
#> 13 Phae.long4-2.wav 0.2441778        22.5        1   16 0.011032    5494
#> 14 Phae.long4-3.wav 0.2451111        22.5        1   16 0.011074    5515
#> 15   Phae.long4.wav 3.2000000        22.5        1   16 0.144080   72000