Interdependent Human Behavior Detection and/or Classification using Active Acoustic Sensing

A non-transitory computer-readable storage medium comprising instructions that, responsive to execution by a processor, is configured to:

• detect a first human behavior based on an acoustic receive signal, the acoustic receive signal representing a version of an acoustic transmit signal with one or more of an amplitude, a phase, or a frequency modified due to propagation of the acoustic transmit signal within an ear canal of a human;
• detect, via the processor, a second human behavior based on the acoustic receive signal and the detection of the first human behavior, the second human behavior being different than the first human behavior, the first and second human behaviors comprising at least one of chewing, eating, bruxism, or sleeping;
• and
• control, via the processor, an operation of a device based on the detection of the second human behavior.

A device comprising:

• a hearable comprising at least one transducer configured to:
• transmit an acoustic transmit signal that propagates within at least a portion of an ear canal of the user;
• and
• receive an acoustic receive signal, the acoustic receive signal representing a version of the acoustic transmit signal with one or more of an amplitude, a phase, or a frequency modified due to the propagation within the ear canal;
• and
• at least one processor configured to:
• detect a first human behavior based on the acoustic receive signal;
• detect a second human behavior based on the acoustic receive signal and the detection of the first human behavior, the second human behavior being different than the first human behavior, the first and second human behaviors comprising at least one of chewing, eating, bruxism, or sleeping;
• and
• control an operation of the device based on the detection of the second human behavior.