OK, this is weirdness. When some new cell phones ring (with the ringer
muted) they emit an electronic pulse that has been causing a extremely loud
electronic BAZAAAAP! noise in my Sennheiser Lavalier mics. I have been
wondering on occasion lately, "Hey what the hell was that?", and now I have
found that the ridiculous electronic noise is invariably accompanied by a muted
cell phone going off.

So you guys might like to be specific when you ask people to turn their
cells off, some people will just mute them and if they have an offending model
it could screw up a take pretty damn well and leave you wondering what is wrong
with your gear! Doesn't sound anything like mic noise, it's digital pulse buzz
like I might imagine an "E-Bomb" might give off to knock down electronic
communications or something. Could something like that screw up a digital
mixer or interfere with a computer/DAW? Hey maybe that's the nefarious plan,
when all the Samsung cell phone go off at once Dr. Evil takes down all our
communications!

Or something...

Will Miho
NY Music & TV Audio Guy
Audioist / Fox News
"The large print giveth and the small print taketh away..." Tom Waits