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