AX3 synchronisation test and concurrent AX3-Qualisys pilot (2015)

A methods dataset from the fourMs Lab (RITMO, University of Oslo, 2015) developing how to synchronise multiple Axivity AX3 accelerometers with each other and with an optical Qualisys motion-capture system, using a mechanical-tap alignment (a shared physical tap captured as an audio transient, used to cross-correlate and align the sensor streams). Contents: a multi-unit synchronisation test (20 AX3 units, raw .cwa + resampled .csv + tap-alignment .wav + two analyses) a small concurrent AX3+Qualisys pilot (.cwa, device-to-body-location map) MATLAB cross-correlation/resampling scripts. Underpins the fourMs AX3-optical device- and technology-comparison work (see the sibling Solberg2016 AX3-QTM dance dataset). Technical pilot only; no music, video or photos; participant identifiers are pseudonymised.