Method and Apparatus for Performing Voice Activity Detection

摘要

A voice activity detection (VAD) apparatus configured to provide a voice activity detection decision for an input audio signal. The VAD apparatus includes a state detector and a voice activity calculator. The state detector is configured to determine, based on the input audio signal, a current working state of the VAD apparatus among at least two different working states. Each of the at least two different working states is associated with a corresponding working state parameter decision set which includes at least one voice activity detection parameter. The voice activity calculator is configured to calculate a voice activity detection parameter value for the at least one voice activity detection parameter of the working state parameter decision set associated with the current working state, and to provide the voice activity detection decision by comparing the calculated voice activity detection parameter value with a threshold.

主权项

1. A voice activity detection (VAD) apparatus comprising:
a receiving unit configured to receive an input audio signal; a state detector configured to determine a current working state of the VAD apparatus based on the input audio signal, wherein the VAD apparatus has at least two different working states, wherein each of the at least two different working states is associated with a corresponding working state parameter decision set (WSPDS), and wherein each WSPDS includes at least one voice activity detection parameter (VADP); a voice activity calculator configured to calculate a value for the at least one VADP of the WSPDS associated with the current working state, and to generate a voice activity detection decision (VADD) by comparing the calculated VADP value with a threshold; and an output unit configured to output the VADD.