Ear-plug assembly for hear-through audio systems

A method comprising:

• detecting sounds from a local area surrounding a user via an ear-plug assembly;
• generating sound filters using the sounds detected from the local area;
• presenting adjusted audio content based in part on the sound filters, via the ear-plug assembly, to an ear canal of the user, wherein the ear-plug assembly comprises:
• an acoustic sensor configured to detect the sounds from the local area;
• a body configured to at least partially fit inside the ear canal of the user, the body configured to have a first aperture that is positioned between the acoustic sensor and an entrance of the ear canal, the first aperture being an entrance to a first acoustic waveguide that guides sound from the local area to a region within the body where the acoustic sensor is located;
• and
• a speaker coupled to a portion of the body, the speaker configured to present the adjusted audio content within the ear canal based in part on the sounds detected from the local area.