Voice activity detection with capacitive touch sense

摘要

A voice activity detection apparatus having a capacitive sensor and a voice activity detector sensor. The voice activity detector sensor detects vibration of human tissue associated with user speech. Utilization of the voice activity detector sensor output is tied to the output of the capacitive sensor, where the capacitive sensor detects whether it is in contact with user skin.

主权项

1. A head worn device comprising:
a capacitive sensor disposed at a head worn device configured to provide a capacitive sensor output signal, wherein the capacitive sensor is configured to detect whether the capacitive sensor is in contact with a user skin of a user head; a voice activity detector sensor disposed at the head worn device arranged to contact a user skin of the user head, the voice activity detector sensor configured to provide a voice activity detector sensor output signal, wherein the voice activity detector sensor is configured to detect vibration of human tissue associated with user speech, and wherein the capacitive sensor is arranged adjacent to the voice activity detector sensor on a same surface of the head worn device such that the voice activity detector sensor is positioned to contact the user skin of the user head whenever the capacitive sensor is in contact with the user skin of the user head; and a processor configured to receive the capacitive sensor output signal and the voice activity detector sensor output signal, wherein the voice activity detector sensor output signal is processed to determine a voice activity status only if the capacitive sensor output signal indicates that the capacitive sensor is in contact with the user skin of the user head.