| 摘要 |
A voice activity detector (200) including an analyser (100) for analysing a signal (I1) representing an audio signal to determine if speech is present in the audio signal, wherein the analyser includes a plurality of voice activity sensors (101-103) each operable to analyse the signal and to provide an output signal (01-03) indicating whether or not speech has been detected by the sensor and a state combiner (201) operable to receive input signals (01-03) produced by the voice activity sensors and to apply a combining function to the input signals to produce a state signal (07) indicating whether or not speech has been detected. Also described is a method of operation (400) of the voice activity detector. |
