Upload your KMD piano touchweight data for analysis
This tool processes KMD piano touchweight data and generates an analysis report including interactive curves, aftertouch analysis, damper lift timing analysis, and statistical summaries. The data includes force-displacement measurements that characterize the feel and consistency of the piano's action across the entire keyboard. Aftertouch characteristics are inferred from the data by calculating the distance the key travels from this peak force exertion (which we interpret as setoff) until sometime near the end of where the KMD passes its downweight threshold and stops pushing. We also attempt to discern the damper lift point and weight of the damper (as felt at the key).
Note that by default the KMD calculates down and upweight by examining the 2-4mm key travel positions, so if you have the dampers involved while measuring and they lift before 4mm, your touchweight statistics will be skewed by the early damper weight coming on. In this situation, we calculate what we believe are better statistics based on the values just prior to the damper lift. So you do not need to lift the dampers for this analysis, and you will have a richer dataset (including damper timing) if you allow the dampers to be involved.
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Sample Data: Download this Steinway A dataset and send it back through to see what comes out