Harry's GPS Suite Forum

My OBD data is out of sync with everything else in the overlaid video. I can't see a way to fix it.

I tried adjusting 'Any OBD' in Sensor Delays under Expert Settings - this didn't appear to change the overlay feature. To test, I exported two videos, one with it set to 0.5, one with it set to 2.5; I changed the setting, exited the app, re-opened the app, then exported the video. I then played both at the same time. The videos were perfectly in sync, including the OBD data. I would have expected a 2 second lag for the OBD data in one video, with the video, GPS, and timing being in sync.

I'm using an iPhone 6, running iOS 8.2. Harry's LapTimer Grand Prix Edition v18.3.9

The sensor delays are applied during recording, not when overlaying. The only delay applied during overlaying is the Overlay Synchronization / Video setting. It can be considered the sensor delay of the video stream.

As GPS sync is not critical visually, acceleration and OBD are the ones to focus on. Nevertheless, sufficient results can be achieved by finding a good adjustment for Overlay Synchronization / Video mostly.

In addition, please search for "sensor delay" here on the forum.

Harry

Hi Harry,

When I use the default setting of 1.0 for "Overlay synchronization, I find that I have to manually adjust the video of all laps AHEAD by 0.7 secs (my video is lagging the data). I go into the video views and lap ending times, and advance the video by 0.7 seconds to have it sync with the data.

I assume I should set Overlay synch back to 0.3 then... since the video is delayed too much? or do I set it to 1.7?

1.7

The logic is as follows: if video is lagging data (i.e. data is ahead, video is behind), the video stream is coming in later than expected. This means the gap between reality and arrival of data is bigger than expected. This means the lag is bigger than expected which matches a bigger delay to define.

- Harry