Wildfire and Portico use a friendly but assertive female voice, giving the impression of an executive secretary.

It rose above the rap standard with her hoarsely assertive voice, a sly sense of humor and the way she bounced syllables around the beat.

"No, I do not think him guilty," said the Major in a loud assertive voice.

At once the assertive voice at the other end of the line softened, and the accent became less pronounced.

The smell of - Then the more assertive voice spoke up.

"You have to use an objective, assertive voice and tell them what you expect."

Say visa in an assertive voice and the guard will let you in.

It's a clear, assertive voice, though not exactly loud, which wouldn't be in character either for the director or for his subject.

Admittedly, one might have hoped, in these difficult times, to have heard him speak with a more assertive European voice.