According to the uploader, this pulse fire clip was taken from Star Trek Bridge Commander, the spaceship command simulator where players direct phaser and torpedo strikes from the bridge. Star Trek weapon audio has circulated online for years as creators rip clean effects for fan films and edits. Unlike a cartoonish pew pew blaster, this pulse has a heavier, rhythmic throb that fits capital-ship combat. It remains useful because authentic Trek game rips are harder to find than generic sci-fi packs.