This graph shows the Resmed data and O2 ring data together (Viatom data import is a great feature of OSCAR). It appears the two sets of data (pulse, movement and SpO2 from the ring) are out of sync with the other data. I just now watched the two clocks tick over and the ring is ahead by about 1 second. So the PMO (pulse, movement and SpO2) should be pulled back by one second. (Admittedly, once second is not much off, but I have seen times when I have them off by 3-6 seconds or more. It just happens.)
I'd love to have an interactive feature in OSCAR to right-click, select "time shift" and then drag any one of the PMO graphs to better align with the event that was seen in the flow. OSCAR could then use that time-shift for the next night, unless corrected by the user for that night. These iterative corrections would allow each night to be properly aligned with its own time shift value, yet have the next night inherit that value since the drift from night to night is likely to be very little.
Since the AS10 is the one MOST likely to be off on its time, perhaps the above feature should be implemented on the flow rate chart? (I don't find the CPAP Clock Drift setting in Preferences to be intuitive. Is it applied to each new day and changing it doesn't affect previous days? Does this mean the drift value is inherited by each new day? Also, it isn't set when you are right there in the data and can judge the drift.)
I would guess the leak disturbance starting about 4:27:45 lead to the flow break, which lead to the movement, followed by the rise in pulse and then the drop in SpO2. (Since PMO all come from a single device, they are always in sync).
Thoughts? How do you deal with these time shifts?