Acoustically transparent barrier layer to seal audio transducers

摘要

Disclosed herein, among other things, are methods and apparatus for mitigating foreign material buildup for hearing assistance device components. The present subject matter includes a hearing assistance device transducer barrier layer configured to resist accumulation and passage of foreign materials. In various embodiments, the barrier layer includes a membrane that is coated with oleophobic and hydrophobic materials, wherein the barrier is acoustically transparent but prevents the accumulation and passage of unwanted materials.