The “SSE” sound effects come from the Sunset Editorial collection which was donated to USC Cinema in 1990. Sunset Editorial had a low-key history in Hollywood. Not a lot is known about them. This is because their credits in films were usually just “Sound Effects — Sunset Editorial”. The company was active from about 1964 to 1987. They mainly did episodic television shows like “Bewitched”, “I Dream of Jeanie”, “The Partridge Family”, and “The Waltons.”


https://archive.org/details/usc-sound-effect-archive


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