All this "silent" stuff reminds me of an old joke.
An old woman goes to see the doctor. She says, "Doctor, I don't know what to do. I can feel myself passing gas constantly, but they're completely silent and have no smell."
The doctor gives her a prescription and tells her to come back in a week.
One week later she reports, "Doctor, I still feel myself passing gas all the time and I still can't hear it, but now they smell TERRIBLE."
The doctor says, "OK, now that we've cleared up your sinuses we'll see what we can do about your hearing."
An old woman goes to see the doctor. She says, "Doctor, I don't know what to do. I can feel myself passing gas constantly, but they're completely silent and have no smell."
The doctor gives her a prescription and tells her to come back in a week.
One week later she reports, "Doctor, I still feel myself passing gas all the time and I still can't hear it, but now they smell TERRIBLE."
The doctor says, "OK, now that we've cleared up your sinuses we'll see what we can do about your hearing."