Schwarz Karine, Cielo Carla Aparecida
Universidade Federal do Rio Grande do Sul.
Pro Fono. 2009 Apr-Jun;21(2):161-6. doi: 10.1590/s0104-56872009000200013.
effectiveness of the sonorous tongue vibration technique (STVT).
to investigate the sensations and the vocal and laryngeal impact produced by the sonorous tongue vibration technique.
The STVT was performed in three sets of fifteen repetitions, in maximum phonatory duration using a normal tone and intensity - with 30 seconds intervals of passive rest between each set. Twenty-four women aged between 20 and 30 years and with no vocal complaints participated in the study. All participants were submitted to a larynx evaluation through videolaryngostroboscopy examination; auditory perceptual and acoustic analysis of the voice, before and after using the STVT, by means of the Multi-Dimensional Voice Program (MDVP), Model 5105 and Real Time Spectrogram, from Key Elemetrics.
after using the STVT, a statistically significant difference was observed in terms of: improvement of voice type; focus of vertical resonance; vocal quality; predominance of positive sensations; maintenance of the larynx images parameters (glottis closure, laryngeal vestibule constriction, symmetry and amplitude of vocal folds vibration); increase in fundamental frequency; improvement of spectrographic evaluation parameters, in Broadband and Narrowband filters; and improvement of medial vestibule constriction according to increase in STVT duration.
the STVT modifies the glottal source and the resonant filter.
响亮舌颤技术（STVT）的有效性。
研究响亮舌颤技术所产生的感觉以及对嗓音和喉部的影响。
进行三组，每组十五次响亮舌颤技术操作，使用正常音调与强度，在最大发声时长下进行，每组之间有30秒的被动休息间隔。24名年龄在20至30岁之间且无嗓音问题的女性参与了该研究。所有参与者在使用响亮舌颤技术前后均通过视频喉镜频闪检查进行喉部评估；借助多维嗓音程序（MDVP）、型号5105以及来自凯伊电子测量公司的实时频谱图对嗓音进行听觉感知和声学分析。
使用响亮舌颤技术后，在以下方面观察到具有统计学意义的差异：嗓音类型改善；垂直共振焦点；嗓音质量；积极感觉占主导；喉部图像参数（声门闭合、喉前庭收缩、声带振动的对称性和幅度）保持不变；基频增加；宽带和窄带滤波器中频谱评估参数改善；以及随着响亮舌颤技术持续时间增加，内侧前庭收缩改善。
响亮舌颤技术改变了声门源和共振滤波器。
