| 摘要 |
The embodiments of the present invention relates to a primary voice activity detector and a method thereof. By using the method of the embodiments it is possible to determine whether frames of an input signal comprise voice. That is achieved by receiving a frame of the input signal, determining a first SNR of the received frame, comparing the determined first SNR with an adaptive threshold, and detecting whether the received frame comprises voice based on said comparison. The adaptive threshold is at least based on total noise energy of a noise level, an estimate of a second SNR and on energy variation between different frames. |
