Baer T, Löfqvist A, McGarr N S
J Acoust Soc Am. 1983 Apr;73(4):1304-8. doi: 10.1121/1.389279.
This study was designed to compare information on laryngeal vibrations obtained by high-speed filming, photoglottography (PGG), and electroglottography (ECG). Simultaneous glottographic signals and high-speed films were obtained from two subjects producing steady phonation. Measurements of glottal width were made at three points along the glottis in the anterior--posterior dimension and aligned with the other records. Results indicate that PGG and film measurements give essentially the same information for peak glottal opening and glottal closure. The EGG signal appears to reliably indicate vocal-fold contact. Together, PGG and EGG may provide much of the information obtained from high-speed filming as well as potentially detect horizontal phase differences during opening and closing.
本研究旨在比较通过高速拍摄、光声门图（PGG）和电声门图（ECG）获得的喉部振动信息。从两名发出稳定发声的受试者获取了同步的声门图信号和高速影片。在声门的前后维度上沿声门的三个点进行声门宽度测量，并与其他记录对齐。结果表明，PGG和影片测量在声门开口峰值和声门闭合方面给出的信息基本相同。EGG信号似乎能可靠地指示声带接触。PGG和EGG一起可能提供从高速拍摄中获得的大部分信息，以及潜在地检测开合过程中的水平相位差异。
