OBJECTIVES The aim of the study is to determine the accuracy of acoustic spectrography as an outstanding tool in the characterization and monitoring of esophageal voice. MATERIAL AND METHODS Our subjects were comprised of 33 laryngectomized patients (all male) that underwent qualitative acoustic (spectrography of vowel /a/ and a sentence), quantitative acoustic (phonation time, fundamental fr...

Modern ultrafast metrology relies on the postulate that the pulse to be measured is fully coherent, that is, that it can be completely described by its spectrum and spectral phase. However, synthesizing fully coherent pulses is not always possible in practice, especially in the domain of emerging ultrashort X-ray sources where temporal metrology is strongly needed. Here we demonstrate how frequ...

BACKGROUND Temporomandibular dysfunction is one of the most complex disorders of the body, capable of unchaining alterations in the mandibular movements which in turn can cause damage not only to speech articulation but also to the quality of voice. In the literature, the relationship between the symptomatology severity levels of this dysfunction and their influence on vocal production has been...