Miller D G, Sulter A M, Schutte H K, Wolf R F
Department of Medical Physiology, University Hospital Groningen, The Netherlands.
J Voice. 1997 Mar;11(1):1-11. doi: 10.1016/s0892-1997(97)80018-5.
The skilled use of nonperiodic phonation techniques in combination with spectrum analysis has been proposed here as a practical method for locating formant frequencies in the singing voice. The study addresses the question of the degree of similarity between sung phonations and their nonperiodic imitations, with respect to both frequency of the first two formants as well as posture of the vocal tract. Using magnetic resonance imaging (MRI), linear predictive coding (LPC), and spectrum analysis, two types of nonperiodic phonation (ingressive and vocal fry) are compared with singing phonations to determine the degree of similarity/difference in acoustic and spatial dimensions of the vocal tract when these phonation types are used to approximate the postures of singing. In comparing phonation types, the close similarity in acoustic data in combination with the relative dissimilarity in spatial data indicates that the accurate imitations are not primarily the result of imitating the singing postures, but have instead an aural basis.
本文提出，将非周期性发声技巧与频谱分析相结合的熟练运用，作为一种在歌声中定位共振峰频率的实用方法。该研究探讨了歌唱发声与其非周期性模仿在频率方面前两个共振峰以及声道姿势的相似程度问题。利用磁共振成像（MRI）、线性预测编码（LPC）和频谱分析，将两种非周期性发声（吸气性发声和发声破裂音）与歌唱发声进行比较，以确定当这些发声类型用于近似歌唱姿势时，声道在声学和空间维度上的相似/差异程度。在比较发声类型时，声学数据的高度相似性与空间数据的相对差异表明，准确的模仿并非主要源于模仿歌唱姿势，而是具有听觉基础。
