Guide

How to add lap times, speed and g-force to track day video

Export the session from the RaceBox app as a CSV (or VBO) file, open your onboard video in Telemetry Studio, add the session and click Auto Sync This Clip. Telemetry Studio switches to a motorsport layout: speed, lap timer, sector times, lap count, g-force, lean angle and a map of the circuit. Export in up to 4K.

It runs on Mac and Windows. The 14-day free trial covers everything below.

A real RaceBox session at Dijon-Prenois, shown over a plain background so you can see the gauges. On your video, your onboard footage goes underneath.

What you need

Onboard video: GoPro, DJI, Insta360 or any camera.
A session recorded on a RaceBox lap timer, exported as CSV or VBO. A GoPro with GPS on (Hero 5 Black and later, except the Hero 12) also gives you speed and the track map with no logger at all.
Telemetry Studio for macOS or Windows (free 14-day trial).

01Export the session from your RaceBox

In the RaceBox app, open the session and share or export it. Choose a CSV export if you want lap and sector times on the video: the CSV includes the lap times RaceBox measured. Telemetry Studio reads all of RaceBox's CSV variants (the ones labelled for Telemetry Overlay, RaceRender, SeriousRacing and FastLap).

02Open your onboard video and add the session

Open your onboard video, then click Add Telemetry and choose the session file, or drag it onto the timeline. Telemetry Studio sees it's a motorsport session, sets the sport to Motorsport and puts the motorsport gauges on the video.

Telemetry Studio with a RaceBox VBO session loaded, the sport set to Motorsport and the Dijon circuit map on screen

03Auto Sync the clip

Right-click the clip on the timeline and choose Auto Sync This Clip. It matches the time the camera started recording to the session's GPS time. If the camera clock was off, use Sync to Map: click a point you recognise in the video (the start/finish line, a braking board), then the same point on the track map. Nudge by 0.1 seconds to get braking points exact.

04Pick the gauges

The motorsport overlays:

Lap timer: current, last, best and optimal lap.
Sector times with green and red deltas, lap times (best in green) and a lap counter.
G-force friction circle and lean angle for bikes, with the session maximum.
Track map traced from your best lap, plus speed in km/h or mph.

Turn each one on or off in the Overlays tab, drag them into place, and pick a theme for all of them at once:

Speed 123 km/h, the Dijon track map and the g-force circle in the Modern theme — Modern

The same speed, track map and g-force overlays in the Minimal theme — Minimal

05Export

Choose File › Export Video…. MP4 (H.264 or H.265) up to 4K, 9:16 for Reels and Shorts, or only the gauges on a transparent background (ProRes 4444 or PNG frames) to lay over your edit.

Other options

RaceRender: the long-standing motorsport tool, with multi-camera picture-in-picture and wide logger support. See Telemetry Studio vs RaceRender.
RaceChrono Pro and Harry's LapTimer record laps on your phone and can export video with the overlay already on it.
AiM Race Studio and VBOX Video do overlays for their own loggers and cameras.
Telemetry Overlay reads AiM, MoTeC and OBD-II files among about 60 formats (comparison).