The hoover traces back to the Roland Alpha Juno preset heard on Joey Beltram's 1991 track Mentasm, where its buzzing pitch sweep became a signature of early rave. Hardcore, gabber and gabba producers adopted it through the 1990s, layering it over fast distorted kicks at warehouse parties and on mixtapes shared online. As rave samples circulated on soundboards and in edit packs, the short sweep survived outside full tracks, reused by DJs and creators who want an instant reference to old school hardcore energy.