oronasal region, as an important organ of taste and smell, being respected for its impact on the resonace, which is crucial for any normal speech production. different congenital, acquired and/or developmentalpdefect, may not only have impacts on the quality of respiration, phonation, resonance, also on the process of a normal speech. this article will enable readers to have more focus in such ...

The term nasality refers to the timbre of the nasal phonemes. It is also used to express the quality of sound that characterises some speakers. In this paper, we propose to classify nasality in natural speech into four types: phonemic nasality, nasality in assimilation, incidental nasality in the production of voiced plosives, and nasality associated with speaker individuality. Speech sounds re...

OBJECTIVE This study examined the relation between nasal port area, nasalance, and perceptual ratings of nasality for three English corner vowels, /i/, /u/, and /a/. DESIGN Samples were simulated using a computational model that allowed for exact control of nasal port size and direct measures of nasalance. Perceptual ratings were obtained using a paired stimulus presentation. PARTICIPANTS F...

With the Nasometer, this paper studies the nasality contrast of liquid initials and the intrinsic nasality of seven cardinal vowels in Beijing Mandarin. The results show that the nasality contrast degree of initial consonants is high. The intrinsic nasality of vowels is closely related to the position of the tongue. The lower and more front the tongue is, the greater the degree of nasalization;...

We used an innovative technique to measure the trajectories of vowel nasality in three languages: English, Mandarin, and Portuguese. An SVM classifier was trained on MFCC parameters at five positions in nasal and oral vowels, and the “nasality trajectory” for each language was evaluated in terms of classification accuracy at each of the five positions. The results support the view that Portugue...

Although previous studies have reported the occurrence of velopharyngeal incompetence connected with ataxic dysarthria, there is a lack of evidence related to nasality assessment in cerebellar disorders. This is partly due to the limited reliability of challenging analyses and partly due to nasality being a less pronounced manifestation of ataxic dysarthria. Therefore, we employed 1/3-octave sp...

BACKGROUND Nasometry has supplemented perceptual assessments of nasality, using speech stimuli, which are devoid of nasal consonants. However, such speech stimuli are not representative of conversational speech. A weak relationship has been found in previous studies between perceptual ratings of hypernasality and nasalance scores for passages containing nasal consonants. AIMS This study aimed...

We investigated phonetic imitation of coarticulatory vowel nasality using an adapted shadowing paradigm in which participants produced a printed word (target) after hearing a different word (prime). Two versions of primes with nasal codas were used: primes with a natural degree of vowel nasality and hypernasalised primes. The version of the prime participants heard varied, whether consistent wi...

When the velum lowers during vowels, the velopharyngeal port is opened, and there is acoustic coupling between the nasal cavity and the main vocal tract, giving rise to a distinct acoustic quality which we call nasality. Nasal coupling results in energy losses at low frequencies, damping of oral formants (especially F1), and introduction of nasal formants corresponding to the resonances of the ...

EMA, aerodynamic, and acoustic signals were combined in order to observe lingual and labial articulation of oral and nasal vowels in Northern Metropolitan French (NMF) and Quebec French (QF). Inter-speaker variation observed in oral articulation suggests the importance of motor equivalence in the acoustic dispersion of each vowel system. Inter-dialectal differences observed are suggestive of im...