The graph of speed after merge FIT+TCX

A place for the community to help each other out with getting the most out of the Combine FIT, GPX or TCX files for Strava Upload Tool.
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danjam
Posts: 2
Joined: Mon Feb 21, 2022 8:29 pm

The graph of speed after merge FIT+TCX

Post by danjam »

Gotoes_MergeFitTcx.PNG
Hi. I did merge a FIT file witch a heart rate from TCX.
It's quite good at the first look, but the graph of speed was changed...
What should I set to keep the proper one?
Gotoes_Merge-Fit-Tcx.PNG
Settings:
Gotoes_MergeFitTcx_Settings.PNG
Last edited by danjam on Mon Feb 21, 2022 8:50 pm, edited 1 time in total.
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fulmar2
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Re: The graph of speed after merge FIT+TCX

Post by fulmar2 »

A couple things you could try:

1) First, try the “smart trim” button to make sure that your heart rate file has the same start and end time as your position file. This might help resolve the average speed issue.

2) Try the radio button to “use speed” instead of distance when calculating speed. This will insert your actual speed values into the final file. So basically, your output file will have the exact same speed values as your original file.

3) Try to select the option to “remove duplicates” under the track points options. I can see the jagged profile on your speed, which means that Strava is recalculating your speed (which accounts for the differences). The spaces in speed where the heart rate data has a value but there is no speed value (because both inputs occurred in the same second) is likely causing this recalculation.
danjam
Posts: 2
Joined: Mon Feb 21, 2022 8:29 pm

Re: The graph of speed after merge FIT+TCX

Post by danjam »

Works! It's not exactly the same, but very similar. I suppose I have to try with "Speed Smoothing" slider ;-)
Thanx a lot!
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