OBJECTIVES There is increased interest in using cepstral-based acoustic measures for objective clinical voice assessment because of their apparent advantages over more time-honored methods, but there is a paucity of information about how these newer measures relate to underlying phonatory mechanisms. METHODS We investigated the relationships between the acoustic cepstral peak magnitude (CPM) ...

Belting, a vocal technique typically cultivated in musical theatre singing, differs timbrally from operatic singing in many interesting respects. The underlying phonatory differences have not been previously investigated in detail. Yet, belting is frequently associated with disturbances of voice function. Articulatory and phonatory characteristics are investigated in a female subject who is a p...

To investigate the prevalence of phonatory symptoms, perceptual, acoustic and aerodynamic findings in patients with asthma compared to a control group. This study is a cross-sectional study. A total of 50 subjects, 31 asthmatic and 19 control subjects matched according to age and gender were enrolled in this study. All subjects were asked about the presence or absence of dysphonia, vocal fatigu...

The presentation concerns a synthesizer of disordered voices. The synthesizer consists of a non-linear model of the phonatory excitation and a vocal tract simulation based on a concatenation of cylindrical tubelets. For each tubelet, viscous, thermal and wall vibrations losses are modeled by means of numerical filters. A conical tubelet is added at the lip-end to simulate the transition from on...

OBJECTIVES To compare the prevalence of phonatory symptoms in menopausal women compared to pre-menopause women with body mass index (BMI) as a confounding variable. METHODS A total of 69 women, 34 menopausal and 35 pre-menopausal were invited to participate in this study. Demographic variables included age, smoking, and BMI. All subjects were asked about the presence hoarseness, loss of high ...

The normalized amplitude quotient (NAQ), defined as the ratio between the peak-to-peak amplitude of the flow pulse and the negative peak amplitude of the differentiated flow glottogram and normalized with respect to period time, has been shown to be related to glottal adduction. Glottal adduction, in turn, affects mode of phonation and hence perceived phonatory pressedness. The relationship bet...

Aim of this investigation was to analyse the voice in a group of 20 patients submitted to supracricoid partial laryngectomy (cricohyoidopexy, sparing two arytenoids) by the Multi Dimensional Voice Programme acoustic analysis system. Results revealed the following sound characteristics: high rate of noise, lack of periodic component of the signal, high rate of segments with no sound signal, voca...

OBJECTIVE To develop a protocol linking cine magnetic resonance (MR) imaging to simultaneously acquired audio recordings of specific phonatory tasks to evaluate velopharyngeal insufficiency (VPI) in children. DESIGN Institutional review board-approved development and application of a novel dynamic cine MR imaging protocol linked to simultaneously recorded audio. SETTING A tertiary care mult...

The objective of the article is to present a polynomial waveshaper model of the phonatory excitation signal, as well as investigate its bandwidth when the model is driven by frequency and amplitudemodulated simple harmonic functions. The purpose of the modulation of the driving harmonics is the simulation of a time-variable intonation and accentuation, as well as phonatory regimes that are not ...