Submersible speaker system with a compressible spacer

A loudspeaker system comprising:

• a loudspeaker grille comprising an array of grille ports configured to allow passage of sound waves from inside a body to outside the body;
• a loudspeaker assembly internal to the body, the loudspeaker assembly comprising:
• a loudspeaker configured to convert an electrical signal into the sound waves;
• an audio circuit board in communication with the loudspeaker to process an audio signal into the electrical signal which drives the loudspeaker;
• a waterproof membrane internal the body and separating the loudspeaker assembly from the loudspeaker grille, the waterproof membrane configured to:
• prevent moisture from passing from outside the body to inside the body while allowing transmission of the sound waves through the waterproof membrane, and
• deform when a pressure differential exists on opposing sides of the waterproof membrane;
• a support structure separating the waterproof membrane from the loudspeaker assembly, wherein:
• the support structure is configured to limit an amount of deformation of the waterproof membrane,
• the support structure is coupled to the loudspeaker assembly and comprises an array of support structure ports configured to allow passage of the sound waves from the loudspeaker to the waterproof membrane, and
• the loudspeaker is located adjacent to the support structure so that the loudspeaker is located on an internal side of the support structure and the waterproof membrane is located on an external side of the support structure opposite the loudspeaker;
• a loudspeaker housing coupled to and mechanically supporting the loudspeaker assembly, the loudspeaker grille, the waterproof membrane, and the support structure such that:
• a first loudspeaker cavity exists between a first side of the loudspeaker grille and a first side of the waterproof membrane,
• a second loudspeaker cavity exists between a second side of the waterproof membrane and a first side of the support structure, and
• a third loudspeaker cavity exists between a second side of the support structure and a first side of the loudspeaker assembly.

A camera system comprising:

• a camera body;
• a loudspeaker grille on a surface of the camera body comprising an array of grille ports configured to allow passage of sound waves from inside the camera body to outside the camera body;
• a loudspeaker assembly internal to the camera body, the loudspeaker assembly comprising:
• a loudspeaker configured to convert an electrical signal into the sound waves;
• an audio circuit board in communication with the loudspeaker, the audio circuit board configured to process an audio signal into the electrical signal which drives the loudspeaker;
• a waterproof membrane internal the camera body and separating the loudspeaker assembly from the loudspeaker grille, the waterproof membrane configured to:
• prevent moisture from passing from outside of the camera body to inside of the camera body while allowing a transmission of the sound waves through the waterproof membrane,
• deform when a pressure differential exists on opposing sides of the waterproof membrane;
• a support structure separating the waterproof membrane from the loudspeaker assembly;
• and
• a loudspeaker housing configured to mechanically support the loudspeaker assembly, the loudspeaker grille, and the waterproof membrane such that:
• a first loudspeaker cavity exists between a first side of the loudspeaker grille and a first side of the waterproof membrane,
• a second loudspeaker cavity exists between a second side of the waterproof membrane and a first side of the support structure, and
• a third loudspeaker cavity exists between a second side of the support structure and a first side of the loudspeaker assembly.