[Long-term average spectrography of speech. Discrimination between the normal voice and the pathological voice].

LTAS (Long Time Average Spectra) were used for discrimination between a sample of 30 normal voices and a sample of 30 pathological voices. A highly significant difference could be observed. There is also a good correlation between the degree of hoarseness as evaluated by LTAS and the sonographic classification of Yanagihara. A possible application for automatic recognition of voice pathology is evoked.