Listen to the sound clip B9 depress (LP) from SpaceX Starship Sound Archive: B9 depress (LP) B9 depress (LP) This sound is from SpaceX Starship Sound Archive A sound collection of Starship, Booster and other facility sounds including: vents, motors etc. Taken from various sources such as NASASpaceFlight - NSF, LabPadre - LP, Cosmic Perspective - CP, SpaceX - SX. Go to the full soundboardwith more sound clips Search