How do you "snore" with a nasal mask?

My Remstar Auto reports from Encore Pro indicate a snore index of about 20. For the life of me I cannot consciously snore with my mouth closed

What does Respironics define as a snore? Does the throat partialy close in a recumbent position? I'm pretty sure I'm not opening my mouth, because I'm not showing any significant leaks.

derek

I have yet to find Respironics' description of snore as detected by their Auto. While the other obstructive sleep events (flow limitation, hypopnea, apnea) are all detected as airflow patterns, snores are primarily detected as pressure waves in the audio spectrum.

I happen to snore the same at 7 cm regardless of machine brand. After all, 7 cm of pressure is not "brand dependent". However, my Remstar Auto (mine is without C-Flex) will score more snores at 7 cm than my 420e will. My hunch is that the Remstar Auto will indiscriminately score any snores that it can detect, yet will discriminately trigger only on snores matching a required accoustical magnitude, sequence and/or rate criteria.

A snore is seldom enough to cause significant oxygen desaturation. However, snores can cause significant sleep disturbances. Those snores on your Encore charts may or may not be enough to cause cortical arousals and consequently sleep stage shifts. Some patients prefer to proactively address those residual snores by raising their bottom AutoPAP pressure a bit. Theoretically it is possible to balance sensory-based cortical arousals in this manner: audio-induced cortical arousals from snore versus tactile-based cortical arousals from elevated pressures. The brain ideally acclimates or discounts either of these sensory occurences, so long as they are not excessively disturbing.