Tips for successfully measuring your speed.

We’ve recorded 6 sample output videos that show how the shuttle is tracked by the app.
Here are the three most common cases for failure.

CASE 1

Smash wasn’t recorded within the app’s timeframe


There is a three seconds window when the app tries to capture the shuttle.  If the shuttle are smashed outside that 3 seconds window, there will be no speed measured.

This is shown in troubleshoot Video A where the smash was too early and the falling shuttle was not tracked. There is no red line around the shuttle path.


A properly-timed smash where the shuttle was tracked is seen in troubleshoot Video B. The serve to the smasher needs to be done right after the 3rd camera flash.

CASE 2

Light-coloured walls and background


The Shuttle Speed app will try to capture the falling shuttle just before to the smash. White walls or posters in the background may interfere with this. This is shown in the troubleshoot Video C. In this video, you can see the white lettering of the poster interfere with the tracking of the falling shuttle.


To get around this problem, chose a different background or smash further away from the problem background. This is shown in troubleshoot Video B.

CASE 3

Business in the background


The Shuttle Speed app will try to capture the smashed shuttle as a contour (rectangular streak) with redline around it. White lines in the background such as posters, horizontal pipes may interfere with this and the app might mistake the background as shuttle movement. This is shown in Video D.


If you continue to record from this spot, it is likely that the app will continue to mistake the background as the shuttle and no speed will be detected. To get around this problem, chose a different wall or move further away from the background. This is shown in Video E.