High order statistics for robust speech/non-speech detection

In noisy environments, a robust speech/non-speech detection is necessary for speech recognition. This paper presents a new method for speech/non-speech detection using third-order moments. The analysis of the energy third-order moment behaviour gives useful information on energy distribution. The new algorithm is compared to the one based on noise and speech statistics presented in [5]. The results show that the new algorithm outperforms the one based on noise and speech statistics only, especially in the case of noisy environments.