Drawing upon his many years of experience in radio and recording, from his work as a radio performer in the 30s to his hands-on recording in the field of movies to his live mixing of performing musical groups, Mr. Hubbard’s recommendations relating to the field of sound recording are equally significant. In main, he declared, the field was rife with conflicting opinions and uncodified data. Indeed, he wrote, “There are no textbooks concerning the operator side of the field of sound recording, mixing and transferring.”

     Consequently, “I have undertaken to make available where needed, precise and useful data on the subject of operation of sound equipment.”