5.1 (31 January 2009)

•  Editors for Klatt synthesis.
•  Corrected many bugs.

5.0.47 (21 January 2009)

•  Extensive pause windows: Scripting 6.6. Controlling the user.

5.0.46 (7 January 2009)

•  More Klatt synthesizer.
•  First pause form support.
•  Renewed CategoriesEditor.
•  Repaired several memory leaks.

5.0.45 (29 December 2008)

•  Bug fixes in Klatt synthesizer.

5.0.44 (24 December 2008)

•  David's Klatt synthesizer: KlattGrid.

5.0.43 (9 December 2008)

•  Scripting tutorial: local variables in procedures.

5.0.42 (26 November 2008)

•  Removed a bug that could cause Praat to crash when drawing pictures in the manual window.
•  Removed a bug that could cause Praat to crash when drawing multi-line text.

5.0.41 (23 November 2008)

•  ExperimentMFC: allow multiple lines in all texts.
•  Regular expressions: removed a bug that could cause Praat to hang when using “.*”.
•  Table: Draw ellipses: removed a bug that could cause Praat to crash if some cells were undefined.

5.0.40 (10 November 2008)

•  Improved reading and writing of text files (faster, bigger).

5.0.39 (1 November 2008)

•  praatcon -a (for sending ANSI encoding when redirected)

5.0.38 (28 October 2008)

•  FormantGrid: To Formant...

5.0.36 (20 October 2008)

•  ExperimentMFC: accepts nonstandard sound files.

5.0.35 (5 October 2008)

•  Scale times by... and Scale times to... (Modify menu).

5.0.34 (22 September 2008)

•  Shift times by... and Shift times to... (Modify menu).
•  Sound: Combine to stereo works even if the two mono sounds have different durations or time domains.

5.0.33 (9 September 2008)

•  Windows: prevented warning messages about “Widget type”.

5.0.32 (12 August 2008)

•  Contributed by Ola Söder: kNN classifiers and k-means clustering.
•  Made UTF-16-encoded chronological TextGrid files readable.

5.0.31 (6 August 2008)

•  Macintosh: corrected a bug introduced in 5.0.30 that caused Praat to crash when you pressed the Tab key in a window without text fields.

5.0.30 (22 July 2008)

•  Macintosh and Windows: tab navigation.

5.0.29 (8 July 2008)

•  OTMulti: can record history.
•  Picture window: corrected text in Praat picture files.

5.0.28 (3 July 2008)

•  Windows: audio output uses DirectX (next to Multi-Media Extensions).

5.0.27 (28 June 2008)

•  Phonetic symbols: breve (ă).
•  Annotation: improved some SpellingChecker commands.
•  Table: can now set string values that contain spaces.

5.0.26 (15 June 2008)

•  Windows: sound recording no longer makes your laptop's fan spin.
•  Windows: no longer any 64 MB limit on recorded sounds.
•  Linux: audio input and output uses Alsa (next to OSS).

5.0.25 (31 May 2008)

•  OT learning: added decision strategy ExponentialMaximumEntropy.

5.0.24 (14 May 2008)

•  Linux: corrected a bug at start-up.

5.0.23 (9 May 2008)

•  Corrected a bug that could cause Praat to crash when you edited an Artword that you had read from a file.

5.0.22 (26 April 2008)

•  Editing formant contours: FormantGrid.

5.0.21 (22 April 2008)

•  Annotating with Cyrillic, Arabic, Chinese, Korean characters, and many more (on Macintosh and Windows).

5.0.20 (8 April 2008)

•  ExperimentMFC: prevented the OK key from working if no response (and goodness choice) had been made.
•  OT learning: sped up learning from partial outputs by a factor of five or more.

5.0.19 (4 April 2008)

•  TextGrid window: corrected a bug introduced in 5.0.17 that could cause Praat to crash when handling point tiers.

5.0.18 (31 March 2008)

•  Manipulation window: corrected a bug introduced in 5.0.17 that caused Praat to crash when adding the first duration point.
•  Sound: added Extract all channels.
•  OT learning: added OTGrammar & PairDistribution: Find positive weights....
•  ExperimentMFC: corrected a bug that caused Praat to crash when the second of multiple experiments referred to non-existing sound files.

5.0.17 (29 March 2008)

•  Sped up vowel editor by a large factor.
•  OT learning: corrected Exponential HG update rule from OT-GLA to HG-GLA.
•  OT learning: shift Exponential HG average constraint weight to zero after every learning step.

5.0.16 (25 March 2008)

•  Macintosh: returned to old compiler because of incompatibility with MacOS X 10.4.

5.0.15 (21 March 2008)

•  Windows: more reliable dropping of files on the Praat icon when Praat is already running.

5.0.14 (20 March 2008)

•  David's vowel editor (New → Sound).
•  Formulas: corrected scaling of sinc function.

5.0.13 (18 March 2008)

•  Corrected drawing of histograms.
•  TextGrid window: selected part of the TextGrid can be extracted and saved.
•  TextGrid: more complete conversion between backslash trigraphs and Unicode.
•  Windows: more reliable dropping of files on the Praat icon when Praat is not running yet.
•  Formulas: sinc function.

5.0.12 (12 March 2008)

•  Bigger ligature symbol (k͡p).

5.0.11 (7 March 2008)

•  Corrected saving of new binary Manipulation files (you can send any unreadable Manipulation files to Paul Boersma for correction).

5.0.10 (27 February 2008)

•  Added the characters đ and Đ.
•  Windows: made praatcon.exe compatible with Unicode command lines.

5.0.09 (16 February 2008)

•  Windows: corrected a bug by which Praat would not open files that were dragged on the Praat icon if the names of these files or their directory paths contained non-ASCII characters.
•  Linux: ignore the Mod2 key, because of its unpredictable assignment.

5.0.08 (10 February 2008)

•  Corrected the minus sign (\-m = “−”).

5.0.07 (8 February 2008)

•  Object IDs are visible in editor windows.

5.0.06 (31 January 2008)

•  Corrected a bug that caused Find again in the TextGrid window not to work.
•  Macintosh: made Praat work correctly on 10.3 computers with missing fonts.

5.0.05 (19 January 2008)

•  All Matrix, Sound, Spectrogram, Pitch, Ltas, and Spectrum objects (and more) are now in 52-bit relative precision (instead of the earlier 23 bits).
•  Corrected a bug that could lead to “Unknown opcode (0)” messages when drawing large sounds (more than 16 million samples) in the Picture window.
•  Macintosh: solved around a bug in the C library that could cause incorrect representation of non-ASCII characters (in the OTGrammar window).

5.0.04 (12 January 2008)

•  Windows: corrected a bug introduced in 5.0.03 that caused Praat to crash if you pressed a key in the Sound window.
•  Macintosh: some cosmetic corrections.

5.0.03 (9 January 2008)

•  Scripting: guard against opening the same file more than once.
•  Table: possibility of regarding a column as a distribution (Generate menu).
•  Macintosh: corrected line colours.

5.0.02 (27 December 2007)

•  TextGrid window: corrected the drawing of numbers to the right of the tiers.
•  Corrected a bug that caused Praat to crash when doing SpectrumTier: List.

5.0.01 (18 December 2007)

•  Corrected a bug that could cause Praat to crash when redrawing the sound or TextGrid window.

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