What was new in 3.3?

What was new in 3.3?

Documentation: hypertext help browser, including the first 190 man pages.
New editors: type TextTier for labelling times instead of intervals.
New actions: Formant: Viterbi tracker, Statistics menu, Scatter plot.
Evaluation: For HNR analysis of speech, the cross-correlation method, which has a sensitivity of 60 dB and a typical time resolution of 12 milliseconds, must be considered better than the autocorrelation method, which has a better sensitivity (80 dB), but a much worse time resolution (30 ms). For pitch analysis, the autocorrelation method still beats the cross-correlation method because of its better resistance against noise and echos, and despite its marginally poorer resolution (15 vs. 12 ms).
User preferences are saved across sessions.
The phonetic X screen font included in the source code.
Xwindows resources included in the source code
Graphics: eight colours, small caps, text rotation.
File formats: Sun/NexT mu-law files, raw matrix text files, Xwaves mark files.
Accelerations: keyboard shortcuts, faster dynamic menu, Shift-OK keeps file selector on screen.
Object type changes: StylPitch and MarkTier are now called PitchTier and TextTier, respectively. Old files can still be read.
Script warning: all times in dialogs are in seconds now: milliseconds have gone.