PrismaSMART and artifacts

[nirmal]

No, sorry, I meant vertically.

Sorry for the delay. I was damn tired to use my PC the last 2 days because of this problem 

Would this be fine? Is this as expected?
[attachment=8048]

[yrnkrn]

I'm trying to see the flow waveforms, which are very compressed since the flow range is from -100 to 100. Try setting this range it until the waveforms fill most of the range, and set the time range to 2-3 minutes.
See attached example from Sleepyhead where the waveforms are clear.

[nirmal]

I'm trying to see the flow waveforms, which are very compressed since the flow range is from -100 to 100. Try setting this range it until the waveforms fill most of the range, and set the time range to 2-3 minutes.
See attached example from Sleepyhead where the waveforms are clear.

ah, I guess I got it. The example helped. How about this?
[attachment=8054]

[yrnkrn]

Yes, this is clear, these wave forms are really flow limited breaths, not errors from the cell phone or software.

[nirmal]

ah Ok. How did you identify these flow limited breaths? Why do you think they went away after a particular day without changing any CPAP settings?

[yrnkrn]

1. plateau or multiple peaks, see Fig 5 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4688581/
2. normal night-to-night variance, sleep position?