Woo P, Colton R H, Shangold L
Department of Otolaryngology and Communication Sciences, SUNY Health Science Center, Syracuse 13210.
Ann Otol Rhinol Laryngol. 1987 Sep-Oct;96(5):549-55. doi: 10.1177/000348948709600514.
Phonatory airflow was recorded in 150 patients with various laryngeal diseases and in 60 persons with normal voices. All subjects produced several sustained vowels at different loudness levels. Disturbances of voice due to laryngeal disease may be manifested as variations of mean flow (DC), alternating flow (AC), or as a variation in the amplitude of the frequency components of the airflow signal (frequency spectra). The quantification of airflow characteristics is important if the clinician is to have a better understanding of laryngeal disease. Furthermore, preoperative and postoperative analysis can serve to document therapeutic effectiveness.
对150例患有各种喉部疾病的患者和60名嗓音正常的人记录发声气流。所有受试者在不同响度水平下发出几个持续元音。喉部疾病引起的嗓音障碍可能表现为平均气流（直流）、交变气流（交流）的变化，或气流信号频率成分幅度的变化（频谱）。如果临床医生想要更好地了解喉部疾病，气流特征的量化很重要。此外，术前和术后分析可用于记录治疗效果。
