Video Length
Also known as: clip length, recording duration
Video length is how many seconds of footage you submit — long enough to include the full swing motion but short enough not to slow down analysis or introduce irrelevant frames.
SwingVantage works best with focused clips of a single swing or a short sequence rather than long recordings that require finding the relevant moment. The ideal length covers setup, the full motion, and a clear finish position. Clips that are too short may miss the backswing or follow-through; clips that are too long increase processing time without improving accuracy. The in-app recording feature crops to a sensible window automatically.
Record a single swing per clip, starting a second before you begin your setup and ending a second after your follow-through. Short, focused clips are easier to process and review.
For comparison sessions, record three to five consecutive swings and let the system segment them automatically — this gives a larger sample without requiring multiple uploads.
Example
A 10-second golf swing clip starting at address and ending with the follow-through is ideal. A 3-minute range session video is too long and forces manual trimming.
How it shows up on video
Video length faults show in Motion Lab as either a truncated skeleton timeline (too short. The follow-through is cut off) or as a long flat region of no-motion frames before and after the actual swing (too long — extra setup or post-shot time that had to be segmented out). The ideal clip shows the skeleton activating within the first few frames and completing the motion near the last frame.
Common mistakes
- Submitting a 5-minute range session video hoping the system will find the best swing. It increases processing time and forces you to manually find the relevant moment.
- Cutting the clip too short and missing the follow-through, which is used to verify finish position and balance.
- Including long setup or conversation time before the swing — irrelevant frames add noise to the motion segmentation step.
- Thinking longer videos mean better analysis — accuracy depends on frame quality, not clip length.
In SwingVantage Motion Lab
Motion Lab processes only the motion-relevant portion of the clip. Longer clips increase upload and processing time without improving the 3D reconstruction — the avatar quality depends on the best frames, not the total duration.
Related terms
- Video Quality ScoreA Video Quality Score is a pre-analysis rating (0–100) that tells you how usable a submitted clip is before pose estimation begins — catching bad angles, motion blur, or poor lighting early.
- Phone Video LimitationsPhone video limitations are the practical constraints of recording on a smartphone. They can reduce analysis accuracy compared with purpose-built cameras.
- Pose EstimationPose estimation is the computer-vision process that detects the positions of major body joints (keypoints) in each video frame. This produces the skeleton that SwingVantage uses to measure angles and movement patterns.
Put this into your swing
SwingVantage can spot this in your own swing — free to start.