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The Internally Geared Screw Machine (IGSM) is a novel type of compressor inspired by the gerotor pump, which is widely used in fuel and oil distribution systems. By adding a twist to the straight rotors used by the gerotor pump to create separate working chambers, the internal mechanism can be envisaged to function as a compressor instead. To achieve compression, ported end plates are used so that the fluid can enter and exit at the desired volume ratio. While previous studies have focused on aspects such as rotor profiling, chamber modeling, optimization, and the characterization of discharge pressure pulsations, limited research has addressed the complete acoustic profile of the IGSM. This paper aims to fill this gap by providing a comprehensive analysis of the vibrations and acoustic characteristics of the IGSM, exploring the vibrational modes of the compressor as well as the acoustic radiation generated by these vibrations.