Praat 4.1, 5 June 2003
General:
- • MacOS X edition.
- • Removed licensing.
- • More than 99 percent of the source code distributed under the General Public License.
- • Windows 2000 and XP: put preferences files in home directory.
Phonetics:
- • Spectrum: the sign of the Fourier transform has changed, to comply with common use in technology and physics. Old Spectrum files are converted when read.
- • Spectral moments.
- • Many jitter and shimmer measures, also in the Sound editor window.
- • PitchTier: shift or multiply frequencies (also in ManipulationEditor).
- • TextGrid: shift times, scale times.
- • Overlap-add synthesis: reduced buzz in voiceless parts.
- • Sound: Change gender...
- • Editors: Intro 3.6. Viewing a spectral slice.
- • Editors: Get spectral power at cursor cross.
- • Sound: To PointProcess (periodic, peaks)...
- • Ltas: merge.
Listening experiments:
- • Goodness judgments.
- • Multiple ResultsMFC: To Table, so that the whole experiment can go into a single statistics file.
- • Stimulus file path can be relative to directory of experiment file.
- • ExperimentMFC: multiple substimuli for discrimination tests.
Statistics:
- • New Table object for column statistics: Pearson's r, Kendall's τ-b, t-test.
- • Table: scatter plot.
- • Table: column names as variables.
- • T-test.
- • TableOfReal: Extract rows where column...
- • TableOfReal: Get correlation....
- • Correlation: Confidence intervals...
- • SSCP: Get diagonality (bartlett)...
OT learning:
- • Tutorial for bidirectional learning.
- • Random choice between equally violating candidates.
- • More constraints in metrics grammar.
- • Learning in editor.
Graphics:
- • Printing: hard-coded image interpolation for EPS files and PostScript printers.
Scripting:
- • New Formulas tutorial.
- • Formulas: can use variables without quotes.
- • Formulas for PitchTier, IntensityTier, AmplitudeTier, DurationTier.
- • Refer to any matrices and tables in formulas, e.g.
Sound_hello (x) or Table_everything [row, col] or Table_tokens [i, “F1”].
- • Assignment by modification, as with += -= *= /=.
- • New functions:
date$ (), extractNumber, extractWord$, extractLine$. See Formulas 6. String functions.
- • Scripting 5.8. Including other scripts.
- • String formulas in the calculator.
- • Stopped support of things that had been undocumented for the last four years: let, getnumber, getstring, ARGS, copy, proc, variables with capitals, and strings in numeric variables; there are messages about how to modify your old scripts.
- • Disallowed ambiguous expressions like -3^2.
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© Paul Boersma 2003