Patent ID: 9692379
Date: 2017-06-27
CPC Classifications: G10L,H03G,H04R

Claim:
1. A method for adaptive audio capturing, the method comprising: obtaining an audio signal through an audio channel associated with an audio capturing element on a user terminal; detecting whether a voice activity exists on one or more audio channels of the user terminal; and if the voice activity exists on the one or more audio channels, determining a functionality of the audio capturing element, which comprises: calculating a signal amplitude for the audio channel by processing the obtained audio signal; and wherein determining the functionality of the audio capturing element based on the signal amplitude and a further signal amplitude for at least one further audio channel associated with at least one further audio capturing element on the user terminal; wherein determining the functionality of the audio capturing element comprises: classifying the audio capturing element into a primary group of audio capturing elements used to capture foreground audio signals or an auxiliary group of audio capturing elements used to capture background audio signals; the user terminal has a primary audio channel; calculating the signal amplitude comprises calculating a relative amplitude of the audio channel with respect to the primary audio channel and averaging the relative amplitude of the audio channel within a time period to acquire an average relative amplitude of the audio channel; the further signal amplitude comprises a further average relative amplitude of the at least one further audio channel with respect to the primary audio channel; and determining the functionality of the audio capturing element comprises comparing the average relative amplitude with the further average relative amplitude; wherein calculating the relative amplitude of the audio channel with respect to the primary audio channel comprises: acquiring a ratio of a difference between a first intermediate signal amplitude of the audio channel and a second intermediate signal amplitude of the primary audio channel to a summation of the first intermediate signal amplitude and the second intermediate signal amplitude, wherein the first intermediate signal amplitude and the second intermediate signal amplitude are obtained by processing the obtained audio signal.