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 Licence.
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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:
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.
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© ppgb, June 5, 2003