Follow Up with Sleep Doc and a question for you all

[bwexler]

I like to work with a doc that knows at least as much as I do about the reason for my visit. It helps if he shares my philosophy on methods of treatment. I have an allergy to scalpels. I prefer to avoid prescription drugs when possible. If my doc doesn't fit my mold, he probably won't be my doc for very long.

[SleepyDreamCatcher]

Apparently your doc thinks the machine picks up snoring noises over its built in microphone. Trouble with that of course, is there is no built in microphone. Snoring determination has to do with air movement. So leaks can cause the machine to think you're snoring, or if you're actually snoring that can cause your machine to think you're snoring. But not the neighbor's cat.

yes, pugsy says that her s9 picks up her pugdog (who has a terrible snoring problem) when the dog gets to sleep up by her head... sometimes her cats chase the dog off... she says can correlate snoring being reported by the machine with where the dog is.

if you've got a smartphone, there's a bunch of sleep apps that will record noises during the night, and time stamp them, so you could just record yourself... the one I mess with is called sleepbot, on android, may also do them ithings too... not sure about that.

So the AutoSet doesn't have a microphone... it picks up the snores through airflow? If so, then how does Pugsy's machine pick up her dog's snores? I am really trying to understand all this. If/when I decide to work on stopping the snores myself, I want to be sure I understand how the machine is working and how it is picking them up. Obviously my sleep doc isn't going to be helping with that, since she doesn't believe I'm snoring.

I don't have a smart phone, but I do have an iPad. Would the app to record snores work on that?

[retired_guy]

Can't speak for Pugsy or her dog. Nor do you need a smart phone or an app to record snores. You have a nifty Resmed S9 Autoset that does a swimmingly fine job of recording far more than you even need to know about stuff. You do need to download the Sleepyhead software so you can check out all the nifty things that are available to you.

[Moriarty]

I don't understand why so much weight is put on the Sleep Study titration (which I never had by the way.)

It is only one little part of one night in an unaccustomed environment... I would say that is what is often wrong - not the home machine sleepyhead data...

My Specialist was quite happy for me to have an auto machine and for it to find its own way.

[robysue]

Can't speak for Pugsy or her dog. Nor do you need a smart phone or an app to record snores.

The point about pugsy and her dog is that the PR System One machines are well known for scoring "snoring" when there is no snoring---as in no snoring confirmed by an awake bed partner paying attention at the time the machine says you're snoring.

You have a nifty Resmed S9 Autoset that does a swimmingly fine job of recording far more than you even need to know about stuff.

The point, again, is that the algorithms, although they are very good, are not flawless. And sometimes it's worth knowing something about what triggers the machine to either record a "false positive" event or miss a real event and record a "false negative."

And both the Resmed and PR snore detection algorithms are based on infering the existence of snoring based on vibrations present in the back pressure measured by the machine. External sources of pronounced vibration (such as Pugsy's dog) are capable of fooling the machine.

[retired_guy]

Can't speak for Pugsy or her dog. Nor do you need a smart phone or an app to record snores.

The point about pugsy and her dog is that the PR System One machines are well known for scoring "snoring" when there is no snoring---as in no snoring confirmed by an awake bed partner paying attention at the time the machine says you're snoring.

You have a nifty Resmed S9 Autoset that does a swimmingly fine job of recording far more than you even need to know about stuff.

The point, again, is that the algorithms, although they are very good, are not flawless. And sometimes it's worth knowing something about what triggers the machine to either record a "false positive" event or miss a real event and record a "false negative."

And both the Resmed and PR snore detection algorithms are based on infering the existence of snoring based on vibrations present in the back pressure measured by the machine. External sources of pronounced vibration (such as Pugsy's dog) are capable of fooling the machine.

Pugsy should not let her dog share her mask with her. Unless of course, the dog has apnea too.

[bwexler]

A sleep doctor looking at reports once or twice a year or a one night titration study with a strange mask and hose on your face only gives a snapshot of your situation.
Using a data capable machine and software like Sleepyhead allows you to watch what is happening minute by minute over extended periods of time, days weeks and months.
That is what allows you to see trends as well as anomalies any time you choose to look. When you spot a change in results you can make appropriate changes with guidance from the more experienced folks here.

[zonk]

S9 AutoSet designed to increase pressure in response to snoring and flow limitation on AutoSet mode but not on CPAP mode
On CPAP mode, the AutoSet deliver constant pressure all night long (except Ramp period), pressure does not go up or down

[vsheline]

So the AutoSet doesn't have a microphone... it picks up the snores through airflow? If so, then how does Pugsy's machine pick up her dog's snores?

Hi SleepyDreamCatcher,

If you vibrate the hose, it would cause a similar vibration in the airflow as snoring would cause.

My guess is that the snoring dog must have caused the hose to vibrate or repetitively move a slight amount, and the vibratory movement of the hose imposed this vibration on the airflow inside the hose.

The implication is that, although the machine may detect vibratory snore, it might not be OUR vibratory snore it is picking up.

[SleepyDreamCatcher]

Can't speak for Pugsy or her dog. Nor do you need a smart phone or an app to record snores. You have a nifty Resmed S9 Autoset that does a swimmingly fine job of recording far more than you even need to know about stuff. You do need to download the Sleepyhead software so you can check out all the nifty things that are available to you.

Already downloaded SleepyHead and check it every day to two days. I like it. It's easier to understand than the ResMed wave charts... Or at least it seems that way to me. SleepyHead says I'm snoring. The sleep doc says SleepyHead is wrong and that the AutoSet is picking up extraneous environmental sounds and calling them snores since my pressure is already set higher than during my titration study when all snores were eliminated. I'm trying to understand how SleepyHead gathers its data. And looking for a way to corroborate it.