Praat 3.9, 18 October 2000

Editors:

• Shift-click and shift-drag extend or shrink selection in editor windows.

• Grouped editors can have separate zooming and scrolling (FunctionEditor preferences).

• Cursor follows playing sound in editors; interruption by Escape key moves the cursor.

• TextGridEditor: optimized for transcribing large corpora: text field, directly movable boundaries, more visible text in tiers, SpellingChecker, type while the sound is playing, complete keyboard navigation, control font size, control text alignment, shift-click near boundary adds interval to selection.

• Stereo display in LongSound and TextGrid editors.

• LongSoundEditor and TextGridEditor: write selection to audio file.

• SoundEditor: added command Extract selection (preserve times).

• IntervalTierEditor, DurationTierEditor.

• Added many query commands in editors.

Phonetics library:

• Sound: To Formant...: sample-rate-independent formant analysis.

• Sound: To Harmonicity... (glottal-to-noise excitation ratio).

• Pitch: support for ERB units, draw all combinations of line/speckle and linear/logarithmic/semitones/mels/erbs, optionally with TextGrid, Subtract linear fit.

• Spectrum: Draw along logarithmic frequency axis.

• TextGrid: modification commands, Extract part, Shift to zero, Scale times (with Sound or LongSound).

• Matrix: To TableOfReal, Matrix: Draw contour....

• Concatenate Sound and LongSound objects.

• File formats: save PitchTier in spreadsheet format, read CGN syntax files (XML version), text files now completely file-server-safe (independent from Windows/Macintosh/Unix line separators).

Statistics and numerics library:

• Principal component analysis.

• Discriminant analysis.

• Polynomial: drawing, root finding etc.

• TableOfReal: Draw box plots....

• Covariance: To TableOfReal (random sampling)....

• SSCP: Get sigma ellipse area....

• Query DTW for “weighted distance” of time warp.

• Distributions: To Strings (exact)...

• Strings: Randomize

Phonology library:

• OTGrammar: To PairDistribution.

Graphics:

• Full support for colour inkjet printers on Windows and Macintosh.

• Full support for high-resolution colour clipboards and metafiles for Windows and Macintosh programs that support them (this include MS Word for Windows, but unfortunately not MS Word for Macintosh).

• Colour in EPS files.

• Interpolating grey images, i.e. better zoomed spectrograms.

• Linux: support for 24-bits screens.

Audio:

• Asynchronous sound play.

• Linux: solved problems with /dev/mixer (“Cannot read MIC gain.”) on many computers.

• Added possibility of zero padding for sound playing, in order to reduce clicks on some Linux and Sun computers.

• LongSound supports mono and stereo, 8-bit and 16-bit, μ-law and A-law, big-endian and little-endian, AIFC, WAV, NeXT/Sun, and NIST files. •vRead two Sounds from stereo file... supports 8-bit and 16-bit, μ-law and A-law, big-endian and little-endian, AIFC, WAV, NeXT/Sun, and NIST files.

• SoundRecorder writes to 16-bit AIFC, WAV, NeXT/Sun, and NIST mono and stereo files.

• Sound & LongSound: write part or whole to mono or stereo audio file.

• Read Sound from raw Alaw file.

• Artword & Speaker (& Sound) movie: real time on all platforms.

Scripting:

• Formulas 5. Mathematical functions: added statistical functions: χ², Student T, Fisher F, binomial, and their inverse functions.

• Windows: program praatcon for use as a Unix-style console application.

• Windows and Unix: Praat can be run with a command-line interface without quitting on errors.

• Unix & Windows: can use <stdout> as a file name (supports pipes for binary data).

• sendpraat now also for Macintosh.

• sendsocket.

• Read from file... recognizes script files if they begin with “#!”.

• Script links in ManPages.

Documentation

• Tutorials on all subjects available through Intro.

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