Although I've understood one can also record sound - not from the camera - I have no sound from android or ipad2air recordings.
Although there is only limited use for this, that becomes an issue when needed and not seemingly available. The ipad2air records sound, so I've read. Certainly not per automatik and/or added to the video.
I'm still puzzled.

With a clap board and external recorder, a little post prod effort and of course the result is there. That's a little more time consuming than I'd like.

A voiced comment or a discussion with the viewer in regard the state of the observed and any notes to be considered later. All possible with external apparati.

Anyone do this with just one apparat and the p3p?

See Index 401-404