Max speed not shown

[MauroGentile]

Hello,
I have a video of 1 minute that I am feeding with a gpx file.
Despite the max speed value in the gpx file is 13.7 m/s, that is to say 49.5 km/hr, the overlaid video shows a maximum value of 48 km/hr.
In the gpx file there are as many entries as the frames in the video.
What this could be due to? I doubt it is an approximation error.
I can share both the video and the file with you if you need it

Thanks for, helping

best

Mauro

[time4tea]

There is a little bit of smoothing that happens in the inputs, so it is possible/likely that a single point at a certain speed wont be rendered at exactly that speed. Its a double edged sword... without smoothing speeds and locations jump all over the place, and with smoothing you don't get exactly the input values...