You can access the global preferences under the menu Options > Preferences…

Language
Specify interface language.

Number of files in history
Lets you select the number of file that you recently open which will be visible under the menu File > Recent.

Time markers format
Lets you select your preferred time representation. This representation will be used for position, duration, stopwatches, exports to spreadsheet, etc.

Format	Example	Meaning
Classic	0:05:25:76	0 hour, 5 minutes, 25 seconds, 76 hundredth.
Frames Numbers	8144	Image #8144 in video.
Ten thousandth of an hour	904	904 Ten thousandth of an hour.
Hundredth of a minute	542	542 Hundredth of minutes.
Classic + Frame numbers	0:05:25:76 (8144)	Same as: Classic (frame number)

Speed unit
Lets you select a preferred speed unit for the path tracking display.

Default Image format
Lets you systematically enforce a specific image format like 4:3 or 16:9.
In the default option, Auto detection, Kinovea will read the information embedded in the file to compute the image aspect ratio.

Always deinterlace when opening a new video
Lets you systematically enforce the deinterlacing mode for all videos.

Grids Colors
Choose a color for each type of grid by clicking on the colored rectangle.

Parameter for Analysis Mode switch
The “Analysis Mode” is the name of a working mode of Play/Analyze screens.
In the typical case of a rather long video, images are extracted from file on the fly, one after another.
This process is to be repeated at each move or during play, it can be time-consuming and is dependant on the file's encoding profile.

If the Working Zone is short enough, Kinovea get all the frames beforehand and store them in memory.
Image access is way faster and becomes independent from format and encoding profile.
As the images are duplicated in memory, we can also modify them without interfering with the original file.
This is how most of the commands in the Image menu (Color adjustment, Mirror) becomes available.

This beforehand load and storing (the Analysis Mode) requires much more memory than the standard way of work, but offer an incomparable experience.

Duration and memory load sliders let you control the switching from one mode to the other.
Both conditions specified need to be true for Kinovea to use the Analysis Mode.

Enable Persistence
If checked, the drawings will be visible for several images, with fading in/out effect.

See also:

• Getting more help
• Observing Motion