Margaret Thatcher's remarkable success at the ballot box may have been partially due to her distinctive voice, according to a new study. Experts looked at whether voters could be swayed by the way politicians speak. They found that politicians whose voices were hoarse, flat or slow received a better response from the public than those who had a different speech pattern. They believe this is because they are perceived as wiser and more competent than those who have a high-pitched voice. Margaret Thatcher's remarkable success at the ballot box may have been partially due to her distinctive voice, according to a new study.