 No studio besides Warner Bros. released even a part-talking feature until the low-budget-oriented Film Booking Offices of America (FBO) premiered "The Perfect Crime" on June 17, 1928, eight months after "The Jazz Singer".FBO had come under the effective control of a Western Electric competitor, General Electric's RCA division, which was looking to market its new sound-on-film system, Photophone.Unlike Fox-Case's Movietone and De Forest's Phonofilm, which were variable-density systems, Photophone was a variable-area system—a refinement in the way the audio signal was inscribed on film that would ultimately become the standard.