Hello Guest,
Welcome to Apnea Board !
/
What units are the Snore Volume numbers in OSCAR?
|
What units are the Snore Volume numbers in OSCAR?
|
verysincere
Posts: 16 Threads: 2 Joined: Feb 2018
Machine: Resmed Aircurve 10 VAuto
02-10-2021, 09:31 AM
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. 
pholynyk
Wiki Editor 
Posts: 2,858 Threads: 71 Joined: Mar 2015
Machine: ResMed AirSense 10 APAP
02-10-2021, 10:44 AM
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.
Apnea Board Monitors are members who help oversee the smooth functioning of the Board. They are also members of the Advisory Committee which helps shape Apnea Board's rules & policies. Membership in the Advisory Members group does not imply medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.
verysincere
Posts: 16 Threads: 2 Joined: Feb 2018
Machine: Resmed Aircurve 10 VAuto
02-10-2021, 01:44 PM
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.
|
|
« Next Oldest | Next Newest »
|
| Possibly Related Threads... | |||||
| Thread | Author | Replies | Views | Last Post | |
| Why do day numbers turn from blue to red after importing SpO2 data into OSCAR? | epc002 | 1 | 158 |
11-27-2020, 11:36 AM Last Post: GuyScharf |
|
|
Oscar kills the Ubuntu VM it is running in [solved: bug in VirtualBox, not OSCAR] | fredex | 1 | 419 |
12-16-2019, 08:47 PM Last Post: fredex |
| OSCAR - Maximize Toogle option, lost menu options [resolved in OSCAR v1.0.1] | Perchas | 7 | 603 |
05-03-2019, 05:24 PM Last Post: Perchas |
|
|
Sleepyhead graphs vertical axis units missing | stillaliveca | 2 | 660 |
07-17-2018, 04:38 PM Last Post: stillaliveca |
| SleepyHead VS2 scores - (the numbers in parentheses in the Event listing) | Roncador | 13 | 2,999 |
11-09-2017, 01:29 PM Last Post: Roncador |
|
| What do the PS numbers on the Sleepyhead display mean? | sirto | 2 | 759 |
08-15-2017, 11:02 PM Last Post: sirto |
|
| Which AHI Numbers Should I Believe, from Sleepyhead or ResScan? | OpineCone | 11 | 1,948 |
04-04-2017, 09:21 AM Last Post: Sleeprider |
|
/
What units are the Snore Volume numbers in OSCAR?
