Spectral Analysis / Phonation Analysis
EGG Open quotient Extraction script for Matlab which prints EGG maxima, EGG minima, DEGG maxima, DEGG minima, Period duration, Open quotient, and Closed quotient. Requires an input directory (input_dur) and an output directory (output_dir). Special thanks to Sam Tilsen.
Formant Script for Praat which extracts F1, F2, and F3 at even intervals in time over the duration of each textgrid-delimited region of a sound file.
General vowel acoustics script for Praat which extracts mean formant values, the first four spectral moments, and F0 dynamically across a duration defined by the textgrid. Duration is also extracted. The number of interval values extracted is equal to the value "numintervals." This script works iteratively across a directory. Written for Alex Tilton (SUNY Buffalo).
Spectral Envelope Script for Praat which divides a sound file into chunks and extracts long-term average spectra at intervals throughout the sound file. The user specifies the size of each averaged spectrum amplitude bin, e.g. bins of 100 Hz. or 50 Hz., etc. Spectra are calculated dynamically across the duration defined by the textgrid. The number of interval values extracted is equal to the value "numintervals."
Spectral Tilt Script for Praat which extracts H1-H2, H1-A1, H1-A2, and H1-A3 at even intervals in time over the duration of each textgrid-delimited region of a sound file. This script also determines pitch and formant values over the same intervals.
Duration, Pitch, and Rate Scripts
Boundary Extractor Script for Praat which extracts the start and end boundaries for all boundaries in a textgrid. This script works iteratively across a directory.
Duration Script for Praat which extracts the duration of each textgrid-delimited duration in a sound file.
Pitch Script for Praat which extracts pitch values at even intervals in time over the duration of each textgrid-delimited region of a sound file.
Silent Replacement Script for Praat. For all portions of a textgrid which have no label, this script replaces the portion with absolute silence (zero amplitude). This script is useful for anyone wanting to "clean up" sound files which have additional unwanted information in the recording.
Speech Rate Script for Praat which prints a syllables per second measure. Requires that there be a textgrid tier with syllables already labelled and another with a label for each repetition in the sound file, e.g. one tier with 5 intervals labelled for 5 repetitions, another with each syllable labelled.