We should not get involved in a remark which was not as sotto voce as he intended.
I shall say this sotto voce: perhaps the problems will become so considerable that we will have to think about introducing a form of compulsion.
That must have been a sotto voce postscript somewhere along the line.
With great respect, it was not sotto voce at all.
It was said almost sotto voce.
I hear my informant saying, sotto voce, £13 million.
Messengers surround me on all sides, speaking sotto voce.
The sotto voce approach is more compelling than the megaphone-type amplified argument that we have heard in the past.