Hey John, I don't see a formatting issue in the file you posted. And yes you are right, a S2S calibration needs to be done if you are recording your data yourself and don't use a third party software like the one from Xsens (which like you mentioned before costs a lot of $$$) for example which does ...

After some testing, my theory seemed to have proven correct concluding from my received results today. That means, if you want to use your own quaternions, make sure they are all in the same coordinate system, before trying to use them in OpenSim. Meaning, a sensor to segment calibration needs to be...

Hello everyone, at the moment I am facing the same question as you @Joshua Galvan . To me it seems the quaternions wanted for the .sto file are supposed to be in the world coordinate system (even though they mention "IMU coordinate system in the quote below) as I found a small hint to that in the do...

I am using the XSense MTw Awinda IMUs (also without the $$$ software) to collect quaternion data and realized a simple data recorder and .sto file generator just recently. If you're saying that you're facing an formatting issue, maybe you could post the output file you are generating to see where th...