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Praatio Changelog

Praatio uses semantic versioning (Major.Minor.Patch)

Ver 6.2 (Dec 10, 2023)

  • Add __len__ and __iter__ methods to Textgrid and TextgridTier
  • Fix behavior of __eq__ method in TextgridTier

Ver 6.1 (Nov 4, 2023)

  • Add TextgridTier.dejitter() method for improving consistency between tiers

Ver 6.0 (Feb 4, 2023)

  • Refactored 'audio.py' for maintainability (see UPGRADING.md for details)
  • Added unit tests for 'audio.py'
  • Fixed several bugs related to audio.py
    • Fixed an issue related to finding zero crossings when a value of zero does not appear in the current sample
    • Fixed a rounding issue in several methods (openAudioFile, insert, generateSineWave, generateSilence). The rounding error would lead to minor miscalculations. But if the calculations were run many times, the errors would accumulate and become more noticable.
    • Fixed an issue with readFramesAtTimes. When the parameter keepList or deleteList was set, the wrong segments would be kept or deleted.
  • Made Textgrid.tierDict protected; use the available helper methods rather than accessing tierDict directly.
  • Made Textgrid.entries read only; use the available helper methods to modify it.
  • Bugfix with praatio_scripts.alignBoundariesAcrossTiers

Ver 5.1 (Dec 31, 2021)

  • Fuzzy equivalence for timestamps in Intervals and Points

Ver 5.0 (Aug 8, 2021)

  • Type Annotations
  • Dropping support for Python < 3.7 (including 2.x)
  • Change from asserts to custom exception classes
  • Unit tests (WIP)
  • Textgrid state validation
  • Lots of bugfixes
  • Option for reading textgrids that contain tiers with the same name
  • Housekeeping
    • break 'tgio' into smaller files
      • all the old tgio content is still exposed in tgio (now called 'textgrid') via imports
    • rename 'tgio' -> 'textgrid'; 'kgio' -> 'klattgrid'; 'audioio' -> 'audio'; 'dataio' -> 'data_points'
    • move the changelog out of the README file
    • changed the interface of openTextgrid and tg.save() to have fewer unexpected results

Ver 4.4 (Jul 5, 2021)

  • Textgrid reading now more robust (fix for files created in Elan)

Ver 4.3 (Apr 5, 2021)

  • Textgrid reading/writing is now more robust (newlines and quotes are ok)
  • Textgrids can now be saved without creating blank intervals
    • For backwards compatibility, by default, segments with no intervals will be given a blank entry with a label of ""

Ver 4.2 (Aug 14, 2020)

  • Textgrids can now be written to/read from a json file
    • tg.save("blah.json", format=tgio.JSON)
    • tg = openTextgrid("blah.json", readAsJson=True)

Ver 4.1 (May 13, 2020)

  • Textgrids can now be read "raw"
    • For backwards compatibility, by default, unlabeled points and intervals are removed when opening textgrids

Ver 4.0 (February 5, 2020)

  • Removed unlicensed xsampa.py file, along with associated utility sppas_util.py (originally added in Ver 3.4)
    • If you are not directly importing either of those files, you can upgrade without changing your code

Ver 3.8 (July 24, 2019)

  • Textgrids can be saved in the Textgrid long file format with .save(fn, useShortForm=False).
    • For backwards compatibility, by default, it saves in the short file format.
  • Textgrid output formatting is now closer to what Praat outputs.

Ver 3.7 (March 17, 2019)

  • Speaker normalization and normalization within local context added to pitch and intensity query functions
  • Generated pdoc documentation added

Ver 3.6 (May 05, 2017)

  • Major clean up of tgio
    • Ver 3.6 is not backwards compatible with previous versions of PraatIO. Lots of changes to tgio.
  • Tutorials folder added

Ver 3.5 (April 04, 2017)

  • Added code for reading, writing, and manipulating audio files (praatio.audioio)
  • eraseRegion() and insertRegion() added to textgrids and textgrid tiers

Ver 3.4 (February 04, 2017)

  • Added place for very specific scripts (praatio.applied_scripts)
    • added code for using with input and output textgrids to SPPAS, a forced aligner
  • Lots of minor features and bugfixes

Ver 3.3 (June 27, 2016)

  • Find zero-crossings in a wave file
    • for shifting all boundaries in a textgrid see praatio_scripts.tgBoundariesToZeroCrossings()
    • for finding individual zero crossings, see praatio_scripts.findNearestZeroCrossing()
  • Pitch features
    • pitch extraction is now ten times faster
    • automatic pitch halving/doubling detection
    • median filtering
  • Textgrid features
    • set operations over two tiers (union, difference, or intersection)
    • erase a section of a textgrid (and a section of the corresponding wave file)
  • Extraction of pitch formants using praat
  • Lots of small bugfixes

Ver 3.2 (January 29, 2016)

  • Float precision is now preserved in file I/O
  • Integration tests added; using Travis CI and Coveralls for build automation.
  • Lots of small bugfixes
  • Moved point processes into 1D and 2D point objects

Ver 3.1 (December 16, 2015)

  • Support for reading/writing point processes

Ver 3.0 (November 10, 2015)

  • Support for reading and writing klattgrids

Ver 2.1 (July 27, 2015)

  • Addition of praatio_scripts.py where commonly used scripts will be placed
  • Import clash led to praatio.py being renamed to tgio.py

Ver 2.0 (February 5, 2015)

  • Support for reading, writing, and manipulating point tiers
  • Ported to python 3
  • Major cleanup/reorganizing of code

Ver 1.0 (August 31, 2014)

  • Reading and writing of textgrids
  • Support for reading, writing, and manipulating interval tiers