In my case, I see a distinctive 4 Hz signal in my mask pressure data that has an excellent correlation with my apnea events—better, even, than what OSCAR flags. I want to experiment with automated detection of this signal. For that, I need to extract the raw mask pressure data.
I’ve started writing my own extractor from the SD card data files, and I’ll probably have that long done before this feature could be added to OSCAR, but it seems worth asking for it anyway.
For the export interface, I imagine a fourth radio button for “Raw Data” that, when selected, adds a pull-down menu to select one of the graphs by name. The export file’s default name would also reflect this choice. The data would be CSV with an initial header text line. (Extra points for a binary export option as well.)
The CSV data could be imported into, for example, Excel for special analysis. Or something more creative and specific, like my plan to save it as a WAV file and open it in Audacity to be displayed as a frequency spectrogram—the better to visualize my 4 Hz signal.
(I suppose I could ask for a spectrogram display option to be built into OSCAR itself, but I don’t want to ask for the world...)