| CPC H04R 1/2876 (2013.01) [H04R 1/2884 (2013.01); H04R 19/016 (2013.01); H04R 2201/003 (2013.01)] | 12 Claims |

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1. An audio system, comprising:
a three-dimensional structure comprising a material having a Young's modulus less than or equal to 0.5 GPa, wherein the three-dimensional structure has a concave interior surface forming a cavity, wherein the cavity has an opening and a vertex point located opposite the opening;
a MEMS microphone located within the cavity, wherein a port hole of the MEMS microphone is located within 10 millimeters of the vertex.
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