He helped develop the practical use of recording sound for film, designed movie theater sound systems and he worked on radar as well as marine detection equipment during World War II. Hilliard collaborated with James B. Lansing in creating the renowned Altec Voice of the Theatre speaker system.
He helped develop the practical use of recording sound for film, and won an Academy Award in 1935. He designed movie theater sound systems, and he worked on radar as well as submarine detection equipment during World War II. Hilliard collaborated with James B. "Jim" Lansing in creating the long-lived Altec Voice of the Theatre speaker system.