Patent ID: 9491542
Filing Date: 2016-11-08
CPC Classification: H04R

Claim Text:
1. A method for passing ambient sound to an earphone device configured to be inserted in an ear canal of a user, the method comprising the steps of: capturing the ambient sound from an ambient sound microphone (ASM) proximate to the earphone device to form an ASM signal; receiving an audio content (AC) signal from a remote device; detecting voice activity of the user of the earphone device; mixing the ASM signal and the AC signal to form a mixed signal, such that, in the mixed signal, an ASM gain of the ASM signal is increased and an AC gain of the AC signal is decreased when the voice activity is detected; detecting a cessation of the voice activity; delaying modification of the ASM gain and the AC gain for a predetermined time period responsive to the detected cessation of the voice activity; and directing the mixed signal to an ear canal receiver (ECR) of the earphone device.