Contact and acoustic microphones for voice wake and voice processing for AR/VR applications

A system, comprising:

• one or more processors;
• and
• a memory storing instructions that, when executed by the one or more processors, cause the system to perform a method including:
• receiving, from a first microphone of a client device, a first acoustic signal;
• receiving, from a second microphone of the client device, a second acoustic signal;
• determining whether the first acoustic signal exceeds a preselected threshold;
• and
• based on determining the first acoustic signal exceeds the preselected threshold, combining the first acoustic signal and the second acoustic signals to generate a third acoustic signal, wherein combining the first acoustic signal and the second acoustic signal comprises permuting the first acoustic signal and the second acoustic signal with weighting factors selected to improve a quality of the third acoustic signal relative to a quality of the first acoustic signal.

A non-transitory, computer-readable storage medium storing instructions encoded thereon that, when executed by a processor, cause the processor to perform a method comprising:

• receiving, from a contact microphone of an augmented reality headset, a first acoustic signal;
• receiving, from an acoustic microphone of the augmented reality headset, a second acoustic signal;
• determining whether the first acoustic signal exceeds a preselected threshold;
• and
• based on determining the first acoustic signal exceeds the preselected threshold, combining the first acoustic signal and the second acoustic signals to generate a third acoustic signal, wherein combining the first acoustic signal and the second acoustic signal comprises permuting the first acoustic signal and the second acoustic signal with weighting factors selected to improve a fidelity and a quality of the third acoustic signal relative to a fidelity and a quality of the first acoustic signal.