Some XMaze sessions are missing send files. Should still be able to align these by looking for the period with the gray screen displayed, which seems to have been consistently labeled as 0 in the receive channel. The gray screen time probably varied enough to identify each run uniquely. For duration, may need to just rely on the log file, with no correction for slope. But this is only over a period of minutes, so substantial drift is unlikely.
Some XMaze sessions are missing send files. Should still be able to align these by looking for the period with the gray screen displayed, which seems to have been consistently labeled as 0 in the receive channel. The gray screen time probably varied enough to identify each run uniquely. For duration, may need to just rely on the log file, with no correction for slope. But this is only over a period of minutes, so substantial drift is unlikely.