Protective cover with an acoustic isolation mechanism

A protective cover for an electronic device, the protective cover comprising:

• a shell configured to partially surround an electronic device, the shell having a first sound opening;
• and
• a removable silicone layer fitted over the shell, the removable silicone layer having a second sound opening aligned with the first sound opening of the shell, the removable silicone layer having an acoustic isolation mechanism, the acoustic isolation mechanism comprising:
• a face to form an acoustic seal with the electronic device when the electronic device is installed in the protective cover,
• at least one acoustic channel extending from the face through the first sound opening of the shell and the aligned second sound opening of the removable silicone layer, the at least one acoustic channel to acoustically couple the electronic device to the protective cover when the electronic device is installed in the protective cover, and
• at least one acoustic membrane that spans a cross-section of the at least one acoustic channel, wherein the at least one acoustic membrane is molded from a waterproof elastomer, the at least one acoustic membrane having a substantially constant thickness.

An encasement for an electronic device, the encasement having an acoustic isolation mechanism for interacting with an electronic device installed in the encasement, the electronic device having a microphone and the encasement having a sound opening proximate the microphone, the acoustic isolation mechanism of the encasement comprising:

• a sound channel member extending from a removable silicone layer of the encasement, the removable silicone layer surrounding a hard shell of the encasement that at least partially encases the installed electronic device, the sound opening of the encasement extending through the removable silicone layer and the hard shell;
• an interior face on an end of the sound channel member of the removable silicone layer, the interior face configured to form an acoustic seal with the electronic device when the electronic device is installed in the encasement;
• and
• at least one acoustic channel extending from the interior face through the sound channel member of the acoustic isolation mechanism, the at least one acoustic channel acoustically coupling the microphone of the electronic device to the sound opening of the encasement.