SkyStudioPro version – updated

There is a new version of SkyStudioPro available:

– a bug fix for the motion detection system, did not work properly in version
– you can now add “elapsed time” to the watermark/time stamp

You can download the new version of SkyStudioPro here.

About SkyStudioPro

SkyStudioPro is a freeware time-lapse and motion detection application for the Windows® platform. You can use it to capture time-lapse movies using almost any capture device or web cam. It also features motion detection, you can set it to record movie clips when motion is detected. You can also use SkyStudioPro to make stop-motion movies, by taking manual snapshots of a scene. Use the brand new SkyStudioPro VideoCompiler to make a compressed movie from your saved images.

SkyStudio Pro – freeware time-lapse & motion detection software

SkyStudio Pro is a freeware time-lapse capture & motion detection application for Windows®. It allows you to capture high-res time-lapse footage at any size, any speed with any capture device or web cam.


SkyStudio Pro screenshot

SkyStudio Pro screenshot


SkyStudio Pro device settings

– select video capture device, any Windows device, capture card or webcam will do
– select audio device, not really needed for time lapse video
– video capture dialog to access your driver settings
– audio capture dialog to access your driver settings
– capture size, e.g. 640×480
– capture resize, allows you to take huge frames from your webcam and resize them on the fly for better sharpness.
– frame rate, allows you to take slow shots from webcams, will enhance light quality at night. Lower frame rate means more light

– all settings are stored by video device. Changing the video device will open its codec, time-lapse and motion settings.
– recorded avi will have either the selected captured frame size, OR if resize is checked, the resized frame size.


SkyStudio Pro saving & recording

– storage folder: root dir for saving movies. Subfolders will automatically be created by date.
– Live codec: codec used for live capture.
– Time-lapse codec: seperate codec can be selected for time-lapse movies. Use as high as possible quality here.
Personally I favor FFDShow codec at 95% quality. Relatively small movies, great quality & sharpness.
– config buttons open the codec config dialog.

note: live video uses lot of cpu, make sure your codec is suitable for live recording


SkyStudio Pro

– preview display shows how your time lapse will look. Click to pause/resume. Below are two bars: the upper shows current playback, the lower shows current frame being recorded.
– current date/time, frame rate and frame number is added to each frame (top left)
– interval: gap between each frame taken from your capture device. 5 sec means every 5 seconds a snapshot is taken and added to the movie
– Fps: the final avi will run at this frame rate. Recommended: 25fps
– auto-save: saves the movie and starts a new one after x frames. Purpose: if your pc crashes for whatever reason, you’ll still have most of your movie.
– recording: check to record, uncheck to stop recording
– with a 1 sec interval and 25fps, your final movie will be 25x faster than reality, playing 25 seconds of real captured time per second in the final movie.
– with a 5 sec interval and 25fps, your final movie will be 125x faster than reality and so on.
– you can change the fps during recording, but it will only have effect on the next recorded movie.
– at the start of every recording, the frame size and fps of the recorded video is set, and does not change during recording


SkyStudio Pro motion detection

– check/uncheck to activate/deactivate
– noise filter needs no explanation other than that it uses some cpu
– proportional: sets a baseline for the motion values, and outputs motion as a “relative” value. As opposed to “absolute”.
– slider: if the motion value is above the slider, it triggers a “motion event”.
– Autom.treshold: sets the treshold slider about 10 points above the average motion of the last 25 frames.
– ON MOTION: if the motion value is above the treshold, a motion event is triggered. Two options: start recording live video, or speed up the current time-lapse.
The latter creates a nice “bullet time effect”. Imagine your time lapse showing clouds speeding by… when an object triggers a motion event the time lapse slows down to real speed. When the object is gone, the video speeds up to time-lapse speed again!

Operating System & requirements

– this program is provided “as is” – no warrantee or guarantee. I developed it for my own use, if it works for you too: great.
– this program has been developed and tested under Windows 7 (x64).
– it will probably work fine under XP and Vista, feel free to test and feed back.
– faster PC, better results. Time-laps does not use much CPU, motion detection does, especially at high frame rate.


This software is freeware for non-commercial use. It uses Mitov’s components for Delphi: AudioLab, VideoLab, VisionLab. Many thanks and credits to him for making these components available for non-commercial use. You can find his website at
The SkyStudioPro software is developed by DjSadhu –



For questions or suggestions: dst [a t]