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Sampling rate for Pleth in HPAP

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shirelattia123456 +0 points · 9 months ago

hey can i get the sampling rate in Hz for the Pleth signal in Home Positive Airway Pressure database please? it is written "10 or highest allowable rate" Thank you shirel

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mrueschman +0 points · 9 months ago

The Pleth signal sampling rate appears to vary between the clinical sites that participated in HomePAP. I opened up a handful of files and found 25 Hz, 64 Hz, and 100 Hz.

Thanks for checking out the site.

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shirelattia123456 +0 points · 9 months ago

thank you can you please provide me a link to check it ? thank you

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mrueschman +0 points · 9 months ago

I opened the HomePAP EDF files in EDFbrowser to check - https://www.teuniz.net/edfbrowser/

You could also use software like (Luna) to systematically output header information (which contains signal sampling rates) for a batch of EDFs - https://zzz.bwh.harvard.edu/luna/

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shirelattia123456 +0 points · 9 months ago

Hi i have an other question : it is written in the known issues that "Pleth signals have a blank physical dimension". what does it mean ? what does this refer to ?

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mrueschman +0 points · 8 months ago

It's referring to the signal metadata in the EDF headers for the home-based sleep studies. Sometimes sleep software developers do not output EDF headers to meet the EDF specifications.