rm_sil Removes silences in wave files
rm_sil(path = NULL, min.sil.dur = 2, img = TRUE, it = "jpeg", flim = c(0, 12), files = NULL, flist = NULL, parallel = 1, pb = TRUE)
Arguments
| path | Character string containing the directory path where the sound files are located.
If |
|---|---|
| min.sil.dur | Numeric. Controls the minimum duration of silence segments that would be removed. |
| img | Logical argument. If |
| it | A character vector of length 1 giving the image type to be used. Currently only "tiff" and "jpeg" are admitted. Default is "jpeg". |
| flim | A numeric vector of length 2 indicating the highest and lowest
frequency limits (kHz) of the spectrogram as in
|
| files | character vector or factor indicating the subset of files that will be analyzed. If not provided then all wave files in the working directory (or path) will be processed. |
| flist | DEPRECATED. Please use 'files' instead. |
| 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 |
Value
Sound files for which silence segments have been removed are saved in the new folder "silence-removed_files". If `img = TRUE` then spectrogram images highlighting the silence segments that were removed are also saved.
Details
The function removes silence segments (i.e. segments with very low amplitude values) from wave files.
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
Examples
{ # save sound file examples data(list = c("Phae.long1", "Phae.long2","lbh_selec_table")) sil <- silence(samp.rate = 22500, duration = 3, xunit = "time") wv1 <- pastew(pastew(Phae.long1, sil, f = 22500, output = "Wave"), Phae.long2, f = 22500, output = "Wave") #check silence in between amplitude peaks env(wv1) #save wave file writeWave(object = wv1, filename = file.path(tempdir(), "wv1.wav"), extensible = FALSE) #remove silence # rm_sil(files = "wv1.wav", pb = FALSE, path = tempdir()) #check this floder tempdir() }#> [1] "/tmp/Rtmp8RcLVb"
