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What units are the Snore Volume numbers in OSCAR?
#1
What units are the Snore Volume numbers in OSCAR?
I've consulted various sources (including the Wiki) and still don't know how to interpret the numbers on the Y-axis of the Snore graph in OSCAR.  Some sources mention "pressure waves" but never provide quantifications or qualifications.

The mouse-over annotations are similarly unhelpful.
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#2
RE: What units are the Snore Volume numbers in OSCAR?
In the ResMed PLD edf files, the Snore signal ranges from 0 to 5 and has no units associated, so it is dimensionless.

I'm not sure how they arrive at their values.
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#3
RE: What units are the Snore Volume numbers in OSCAR?
(02-10-2021, 10:44 AM)pholynyk Wrote: In the ResMed PLD edf files, the Snore signal ranges from 0 to 5 and has no units associated, so it is dimensionless.  

Interesting.  The sensor would be producing signals varying by voltage.  Pressure waves are usually measured in Pascals but when interpretable as sound waves, one would expect decibels. Either way, I would think that it would be a logarithmic scale. Perhaps by leaving it "dimensionless", they avoided having to explaining that complexity in their documentation.

I overrode the auto-scaling on my Y-axis (as decimal fractions well below 1.00) so that I could see the very low levels of "snores" more easily.  So apparently I just don't snore much despite serious apnea.
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