166

(8 replies, posted in General)

What about the "Arm capture trigger" button in the capture tool bar? There is also a colored band above the screen, it should be green. If it's blue it means audio trigger is disarmed. This arm/disarm mechanism was added on top of the audio trigger to avoid unwanted recordings.

167

(8 replies, posted in General)

Kinogram is only available when the whole video section is cached in memory so you have to either increase the memory cache from the preferences or make the selection shorter.

168

(8 replies, posted in General)

It should be OK to install on top, hopefully it will retain the preferences. Let me know if it doesn't work as expected I haven't tested this in a while. You can also use the .zip version and keep both in separate directories.

169

(3 replies, posted in Cameras and hardware)

Unless it's a camera from one of the supported vendors it won't work. The way they work is that each vendor has a specific SDK that Kinovea camera plugins are built with and that contains the library that actually interact with the driver.

170

(8 replies, posted in General)

Yes you need to grab version 2023.1 from the sticky topic in this forum. Then you do right click "Sort by" in the file list or in the background of the thumbnail panel, and then "Date" and "Descending".

171

(2 replies, posted in Français)

Bonjour,
D'après mon expérience quand la vidéo résultante est plus rapide que prévu c'est que la fréquence de capture réelle a été plus basse que celle configurée. Par exemple la capture a été configurée pour 60 fps mais en réalité il n'y a eu que 40 images enregistrée à chaque seconde de capture.

Cela peut venir de plusieurs causes. Les principales: 1. pas assez de lumière ambiente et durée d'exposition automatique (typique sur les webcams). La caméra augmente la durée d'exposition pour capter assez de lumière et force le fps à descendre. 2. images perdues pendant la capture (par exemple si l'encodage et sauvegarde prend trop de temps par rapport au fps).

Si vous faîtes la capture dans Kinovea il y a une barre d'info au dessus de l'écran de capture indiquant le fps réel et un compteur de "drops".

If you only plug the front camera it works?
A hub is good if it's powered. On the other hand two different USB ports on the PC may still internally end up on the same root and share power and bandwidth. But if it can send the camera feed to the other app it shouldn't be that. There is a log of operation which should have good info to debug this. Can you share it by email joan at kinovea dot org?

For point 1, the coordinate system is in pixels by default. If you don't do any particular calibration and show the coordinate system it will show a grid overlay with graduations in pixels. Currently you can't change the interval between labels / tick marks but I agree it would be good to have.

174

(3 replies, posted in General)

If you mean to output a video with this behavior then yes, in Kinovea 2023.1: File > Export video > Video with pauses… In previous versions go to the bottom right section in the player and use the last button "Export video with a pause on each key image".

175

(1 replies, posted in Bug reports)

Hi, there should be a log of operations in the log folder and possibly some crash files (you can get to the log folder from Help menu), could you forward these files to me by mail at joan at kinovea dot org please, thanks.

In my experience the most likely cause of this on a laptop is the cameras being plugged to USB ports that end up in the same USB root hub and not having enough power or bandwidth to run simultaneously. Try to plug one of them to a powered USB hub to see if it changes anything.

After you have done the calibration, do Save annotations. Then in the next video you can do Load annotations and it should reload the calibration. If you want to have this automatically loaded with every videos for a while, point to your saved KVA file in preferences > Playback > General > Default annotation file.

178

(3 replies, posted in General)

Yes you need to do a calibration, check this page: https://www.kinovea.org/help/en/measure … ation.html

179

(3 replies, posted in General)

Sorry to disappoint but Kinovea only takes camera feeds as of now.

The message you replied to was made by a bot and doesn't know anything. If you select the text below the last line they wrote you can see they added a hidden link to a random website in transparent font. I remove these types of messages very often but they are getting more and more sophisticated, using AI to generate plausible answers! (I edited their message to change the target URL so they don't get clicks).

Hi, yes I did implement the concept of keyframe presets (name + color, bound to a shortcut) in the last version. Check the sticky topic in the general forum with the release post for 2023.1.

I made a little video here, especially the second part at around 2min mark: https://www.youtube.com/watch?v=UJmcvMwtz70