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Peak slope via voiceanalysis Daless wavelet bank

trk_peakslope_vat.Rd

Computes the peak slope acoustic parameter (Kane and Gobl 2011) using the bit-faithful Daless wavelet bank in voiceanalysis. Faster and more numerically stable than the pure-R trk_peakslope (which approximates Daless via db4 wavelets) for the same algorithm.

Usage

trk_peakslope_vat(listOfFiles, beginTime = 0, endTime = 0, toFile = FALSE, explicitExt = "psv", outputDirectory = NULL, verbose = TRUE)

Arguments

listOfFiles

Character vector of audio file paths. Any format supported by av is accepted; non-native inputs are transcoded automatically.

beginTime

Start time for the extracted portion in seconds. Default: NULL (beginning of signal). Note: uses beginTime/endTime (seconds) matching DSP function conventions, unlike read_audio() which uses begin/end.

endTime

The end time of the section of the sound files that should be analysed (in seconds). Use 0 for end of file.

toFile

Logical. If TRUE, write SSFF output files and return the count written. If FALSE, return an AsspDataObj (single file only). Default TRUE.

explicitExt

By default, a character "d" will be prepended to the file name suffix when writing the output to file. The user can also specify an explicit extension which will be used instead.

outputDirectory

The directory where the slice file should be stored. If not defiled (NULL), the sparse slice file will placed in the same folder as the media file.

verbose

Logical. Show a progress bar (sequential path) or a progress-aware parallel apply (pbapply/pbmcapply, if installed).

Value

If toFile = FALSE: an AsspDataObj with one track:

peak_slope

REAL32, peak-slope coefficient per frame, n_frames × 1.

Frame rate: 100 Hz (10 ms hop).

References

(Kane and Gobl 2011)

See also

trk_peakslope

Examples

if (FALSE) { # \dontrun{
trk_peakslope_vat(
  system.file("samples", "sustained", "a1.wav", package = "superassp"),
  toFile = FALSE
)
} # }