background:speech is the most important communication tool and is the smooth product of four systems: respiratory, phonatory, resonatory, and articulatory. currently, a variety of voice disorder occurred because of life style and environmental pollutants. vocal nodule is one of the most prevalent disorders in this category. considering the point that the air required for vocal cords vibration i...

Phonatory behavior of German speakers (GS) and French speakers (FS) in native (L1) and non-native (L2) speech was instrumentally examined. Vowel productions of the two groups were analyzed using a parametrization of phonatory behavior and phonatory quality properties in the acoustic signal. The behavior of GS is characterized by more strained adduction of the vocal folds whereas FS show more in...

The object of the presentation is a polynomial waveshaping model of the phonatory excitation signal. The phonatory excitation signal is the acoustic signal that is generated at the glottis via the vibrating vocal folds and the pulsatile airflow. A waveshaper is an operator that transforms a sinusoid into any desired waveform. The waveshaper is approximated by means of a pair of polynomials whos...

Contact microphones are the best tool for monitoring the health of the phonatory system in a non-invasive way, to record the voice activity in order to extract reliable parameter useful to diagnose voice diseases like dysphonia, polyps and nodules. After testing different contact microphones on many human subjects arise the need of a proper characterization, since the in vivo tests suffer from ...

PURPOSE Although dysphonia has been shown to be a common sign of Huntington disease (HD), the extent of phonatory dysfunction in gene positive premanifest HD individuals remains unknown. The aim of the current study was to explore the possible occurrence of phonatory abnormalities in prodromal HD. METHOD Sustained vowel phonations were acquired from 28 premanifest HD individuals and 28 health...

Remarkably little is known about the acoustic phonetics of infant vocalizations that can be specifically regarded as precursors to speech. It is nonetheless clear that, prior to babbling, infants use a variety of vocalizations, dubbed ‘protophones,’ with varying degrees of phonatory control. It is also clear that phonatory control involves selection among the distinct vibratory regimes known to...

Anecdotal evidence has suggested that musical notation can trigger auditory images. Expert musicians silently read scores containing well-known themes embedded into the notation of an embellished phrase and judged if a tune heard aloud thereafter was the original theme (i.e., melodic target) or not (i.e., melodic lure). Three experiments were conducted employing four score-reading conditions: n...