Estimates aperiodicity of a speech signal

Aperiodicity is estimated using function for assessing band-aperiodicities using the Definitive Decomposition Derived Dirt-Cheap (D4C) algorithm (Morise 2016) implemented in the WORLD vocoder (MORISE et al. 2016) . The the dio (Morise et al. 2010) pitch algorithm is used to calculate the periodic component.

Usage

aperiodicities(
  listOfFiles,
  beginTime = 0,
  endTime = 0,
  windowShift = 5,
  minF = 70,
  maxF = 200,
  voiced_voiceless_threshold = 0.01,
  explicitExt = "wap",
  outputDirectory = NULL,
  toFile = TRUE
)

Arguments

listOfFiles

A vector of file paths to wav files.

beginTime

The start time of the section of the sound file that should be processed.

endTime

The end time of the section of the sound file that should be processed.

windowShift

The measurement interval (frame duration), in seconds.

minF

Candidate f0 frequencies below this frequency will not be considered.

maxF

Candidates above this frequency will be ignored.

explicitExt

the file extension that should be used.

outputDirectory

set an explicit directory for where the signal file will be written. If not defined, the file will be written to the same directory as the sound file.

toFile

write the output to a file? The file will be written in outputDirectory, if defined, or in the same directory as the soundfile.

Value

An SSFF track object containing two tracks (f0 and corr) that are either returned (toFile == FALSE) or stored on disk.

References

Morise M (2016). “D4C, a band-aperiodicity estimator for high-quality speech synthesis.” Speech Communication, 84, 57--65. ISSN 0167-6393, doi:10.1016/j.specom.2016.09.001 .

Morise M, Kawahara H, Nishiura T (2010). “Rapid F0 estimation for high-SNR speech based on fundamental component extraction.” Trans. IEICEJ, 93, 109--117.

MORISE M, YOKOMORI F, OZAWA K (2016). “WORLD: A Vocoder-Based High-Quality Speech Synthesis System for Real-Time Applications.” IEICE Transactions on Information and Systems, E99.D(7), 1877--1884. ISSN 0916-8532, doi:10.1587/transinf.2015edp7457 .