The speaker in my notes has greyed out all of a sudden.  How do I get it back?

10-11  Source: Network gathering  Views:0 

I use my notes a lot and use the speaker to input them.  All of a sudden the speaker button greyed out and I can't get it to work.  Any idea how I can fix this?
Ok, siri is turned on, so I don't think that isn't the problem.
But ---  I just checked it again, and lo and behold the speaker is back to black and usable. 
Thanks for your input.
Related articles