... that of a nonadaptive system In [6] we proposed a new approach for noise robust V/UV detection based on adaptive noise classification and SNR estimation In this paper we present an extended version ... state of art are: the adaptation of V/UV as a function of background noise and SNR, the use of a large initial set of features,s and the use of Genetic Algorithms (GAs)for feature selection Adaptive ... determination of speech signal in noisy environment using harmonicity measure based on instantaneous frequency,” in Proceedings of the IEEE International Conference on Acoustics, Speech, and...