A new acoustic measure for aspiration noise detection

In this paper, we propose a new acoustic measure for detecting aspiration noise in vowels. The measure is an index of synchronization between frequency bands around the first and third formants. The measure is based on the principle that the vocal tract responses to the glottal excitation are synchronized between these frequency bands when aspiration noise is absent, and uncorrelated otherwise. Evaluation results show that the proposed measure can be used together with spectral slope measures for automatic detection of aspiration noise.