Nobody can pin this wail to a single film or game, which is exactly why it survives as a stock-style horror sound. It belongs to a long tradition of disembodied female ghost moans that haunted-house attractions, radio dramas and low-budget horror films have leaned on for decades, because the sound reads as 'ghost' in the first two seconds. Online it circulates as a seven-second clip, easy to loop or fade under footage, and creators keep reaching for it every October when spooky content spikes. Its anonymity is its strength: it works wherever a ghost needs a voice, no backstory required.