CPC G10K 11/17881 (2018.01) [H04R 3/002 (2013.01); H04R 3/007 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3028 (2013.01); G10K 2210/3226 (2013.01)] | 20 Claims |
1. A signal processing device for on ear detection for a headset, the device comprising:
a first microphone input for receiving a microphone signal from a first microphone, the first microphone being configured to be positioned inside an ear of a user when the user is wearing the headset;
a second microphone input for receiving a microphone signal from a second microphone, the second microphone being configured to be positioned outside the ear of the user when the user is wearing the headset; and
a processor configured to:
receive microphone signals from each of the first microphone input and the second microphone input;
pass the microphone signals through a first filter to remove low frequency components, producing first filtered microphone signals;
combine the first filtered microphone signals to determine a first on ear status metric;
pass the microphone signals comprising signals from each of the first microphone input and the second microphone input through a second filter to remove high frequency components, producing second filtered microphone signals;
combine the second filtered microphone signals to determine a second on ear status metric; and
combine the first on ear status metric with the second on ear status metric to determine the on ear status of the headset.
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