Description: MACHINES - CONSTRUCTION & FACTORY DIESEL COMPRESSOR: INT: Motor idle, slight hiss to mechanism.

Description: MACHINES - CONSTRUCTION & FACTORY AIR COMPRESSOR: EXT: Motor, constant run, medium distant.

Description: MACHINES - CONSTRUCTION & FACTORY AIR COMPRESSOR: INT: Consumer model, recorded by inlet pipe.

Description: MACHINES - CONSTRUCTION & FACTORY AIR COMPRESSOR: INT: Motor run, occasional knock, close up.