Praat full changelog
Praat 6.4.65
released Apr 25, 2026 (New Release)
Fixed a bug that could lead to a “Text is not valid UTF-8” error message in automatic transcription.
More windows recognize Command-Q (Quit Praat).
More windows recognize Command-Q (Quit Praat).
Praat 6.4.64
released Apr 18, 2026 (New Release)
Many small improvements and bug repairs in speech recognition, including automatic alignment and diarization.
Praat 6.4.63
released Apr 5, 2026 (New Release)
Speaker diarization in Transcribe interval (if Whisper models installed).
Mac: Command-mousewheel zooming (as on Windows).
Mac: Command-mousewheel zooming (as on Windows).
Praat 6.4.62
released Mar 13, 2026 (New Release)
Sound: To TextGrid (speech activity, Silero)...: “voice activity detection” by AI.
TextGrid window: fixed a bug from 2013 or earlier that could cause Praat to crash during interval alignment.
Fixed a bug that caused Praat to crash if a notebook was run twice.
TextGrid window: fixed a bug from 2013 or earlier that could cause Praat to crash during interval alignment.
Fixed a bug that caused Praat to crash if a notebook was run twice.
Praat 6.4.61
released Feb 28, 2026 (New Release)
Transcribe interval (via automatic speech recognition): better word alignment via Whisper’s built-in DTW
Transcribe interval (via automatic speech recognition): option for silence removal (via an additionally installed AI model)
Windows: Ctrl+Alt+Letter menu shortcuts have become Ctrl+Shift+Letter, because that’s the way it’s nowadays done in e.g. browsers and NotePad, and because Ctrl+Alt+Letter combinations can stand for actual Alt-GR characters on some keyboards. On the Mac we still use Option+Command+Letter. Note that on most Windows keyboards the Ctrl and Alt keys are adjacent, as as the Option and Command keys on most Mac keyboards
Manual: menu shortcuts for Previous page and Next page
Transcribe interval (via automatic speech recognition): option for silence removal (via an additionally installed AI model)
Windows: Ctrl+Alt+Letter menu shortcuts have become Ctrl+Shift+Letter, because that’s the way it’s nowadays done in e.g. browsers and NotePad, and because Ctrl+Alt+Letter combinations can stand for actual Alt-GR characters on some keyboards. On the Mac we still use Option+Command+Letter. Note that on most Windows keyboards the Ctrl and Alt keys are adjacent, as as the Option and Command keys on most Mac keyboards
Manual: menu shortcuts for Previous page and Next page
Praat 6.4.60
released Feb 11, 2026 (New Release)
Scripting: fixed an interaction between pause windows and exitScript.
Scripting: turned cases of multiple identical procedure names into once-warnings instead of errors.
Scripting: turned cases of multiple identical procedure names into once-warnings instead of errors.
Praat 6.4.59
released Feb 5, 2026 (New Release)
Made nested scripts with pause windows and/or Demo window work again.
Fixed a bug by which SpeechRecognizer creation could make Praat crash on some platforms.
Fixed a bug by which SpeechRecognizer creation could make Praat crash on some platforms.
Praat 6.4.55
released Jan 15, 2026 (New Release)
Plug-ins: fixed a problem introduced in 6.4.52 by which menu commands with pause forms didn’t work.
Scripting: fixed some problems introduced in version 6.4.52 concerning the interaction between pause windows and the Demo window.
Opening TIFF files with Read from file..., as well as Insert picture from file...: rid a bug that would show monochrome TIFF files in four vertical stripes.
Scripting: in pause forms, allow vector expressions as defaults in vector fields.
Backslash trigraph for apico-postalveolars: ṣ (s.v), following Ladefoged & Maddieson (1996), who wanted to distinguish them from the more extreme retroflexes, i.e. apico-palatals such as ʂ (s.).
Scripting: fixed some problems introduced in version 6.4.52 concerning the interaction between pause windows and the Demo window.
Opening TIFF files with Read from file..., as well as Insert picture from file...: rid a bug that would show monochrome TIFF files in four vertical stripes.
Scripting: in pause forms, allow vector expressions as defaults in vector fields.
Backslash trigraph for apico-postalveolars: ṣ (s.v), following Ladefoged & Maddieson (1996), who wanted to distinguish them from the more extreme retroflexes, i.e. apico-palatals such as ʂ (s.).
Praat 6.4.54
released Jan 12, 2026 (New Release)
Windows: fixed a problem introduced in 6.4.52 by which Ctrl-mousewheel wouldn’t zoom in or out.
Windows: better dotted or dashed lines.
Windows: better dotted or dashed lines.
Praat 6.4.53
released Jan 10, 2026 (New Release)
Windows: support horizontal scrolling in three ways (two-finger swiping on the touchpad; left and right tilting of the mouse’s scroll wheel; turning the mouse’s scroll wheel while keeping the Shift key pressed).
Sound: To PowerCepstrogram... now averages the power over channels instead of taking only channel 1.
Scripting: fixed some problems introduced in version 6.4.52 concerning the interaction between pause windows and editor scripts.
Scripting: runSubprocess and runSystem now support asynchronous, with which you can spawn a subprocess without waiting for it to finish.
Sound: To PowerCepstrogram... now averages the power over channels instead of taking only channel 1.
Scripting: fixed some problems introduced in version 6.4.52 concerning the interaction between pause windows and editor scripts.
Scripting: runSubprocess and runSystem now support asynchronous, with which you can spawn a subprocess without waiting for it to finish.
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