Department of Otorhinolaryngology, Queen's Medical Centre Campus, Nottingham University Hospitals, Nottingham, United Kingdom.
Complete Vocal Institute, Copenhagen K, Denmark.
J Voice. 2024 Nov;38(6):1526.e11-1526.e22. doi: 10.1016/j.jvoice.2022.05.002. Epub 2022 Jun 3.
Rough vocal effects, extreme, or extended vocal techniques to sound intentionally hoarse or rough are an integral part of many genres and styles, and research has recently demonstrated the involvement of supraglottic narrowing and vibrations to produce such sounds. The vocal health of singing with rough vocal effects is poorly documented, especially in a longitudinal manner, while much vocal pedagogy continuously treats the sounds as harming to or dangerous for the vocal mechanism.
To longitudinally investigate the vocal health of professional singers who perform the five rough-sounding vocal effects Distortion, Growl, Grunt, Rattle, and Creaking as part of their singing and teaching.
Twenty singers underwent nasoendoscopic examination, filled in SVHI questionnaires, and were assessed by GRBAS with a 14-year interval in a retrospective longitudinal study (from 2007 to 2021). Endoscopic materials were assessed by Reflux Finding Score and a hybrid version of the Stroboscopy Rating Scale.
Singers presented at initiation of study with an average SVHI of 9.2 (±9), which decreased at time of follow up 14 years later to an average of 5.12 (±6). Laryngeal assessments (RFS and SRS) revealed low averages at initiation of study as well as at conclusion of the study with only small fluctuations in averages, with findings mainly relating to arytenoid asymmetry.
The participating singers perform and teach rough vocal effects continually and present with healthy laryngeal mechanisms and within-normal SVHI and GRBAS scores. The findings suggest that controlled supraglottic narrowing and techniques to allow for supraglottic structures to engage in vibration as an additional noise source can be performed sustainable and in a healthy manner if performed with correct vocal technique.
粗糙的发声效果、极端或延长的发声技巧，旨在使声音听起来故意沙哑或粗糙，是许多流派和风格的重要组成部分，最近的研究表明，这些声音是通过声门上的狭窄和振动产生的。使用粗糙发声效果的歌唱者的嗓音健康记录不佳，特别是从纵向角度来看，而许多声乐教学法一直在将这些声音视为对发声机制有害或危险。
纵向研究将五种粗糙发声效果（失真、咆哮、咕噜声、嘎嘎声和嘎吱声）作为其歌唱和教学的一部分的专业歌手的嗓音健康。
20 名歌手接受了鼻内窥镜检查，填写了 SVHI 问卷，并在回顾性纵向研究（2007 年至 2021 年）中进行了 14 年的间隔 GRBAS 评估。内窥镜材料通过反流发现评分和频闪喉镜评分的混合版本进行评估。
歌手在研究开始时的平均 SVHI 为 9.2（±9），14 年后随访时降至平均 5.12（±6）。喉部评估（RFS 和 SRS）显示，在研究开始时和研究结束时的平均值都较低，平均值只有微小波动，发现主要与杓状软骨不对称有关。
参与研究的歌手持续表演和教授粗糙的发声效果，具有健康的喉部机制和正常的 SVHI 和 GRBAS 评分。研究结果表明，如果使用正确的发声技巧，可控的声门上狭窄和允许声门上结构参与振动作为附加噪声源的技术可以以可持续和健康的方式进行。
