Comparison of acoustic voice perturbation measures among three independent voice laboratories.
Comparison of acoustic voice perturbation measures among three independent voice laboratories.
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三个独立语音实验室的声学语音扰动测量比较。
DOI：
10.1044/jshr.3404.781
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Fischer,LB
中科院分区：
文献类型：
--
作者：
Karnell,MP;Scherer,RS;Fischer,LB
本研究的目的是比较三种不同分析系统（Visi-Pitch PC系统（Pine Brook）和两种基于小型机的系统（Chicago和Denver））测量的抖动和闪烁数据，作为建立记录和分析标准的初步步骤。结果表明，尽管在独立实验室中使用的类似硬件和软件可以产生类似的结果，但记录硬件以及记录和分析程序的差异可能导致微扰结果的重要差异。使用Visi-Pitch获得的抖动测量值与从小型计算机系统获得的抖动测量值并不一致，部分原因是在记录过程中选择的Visi-Pitch内部滤波器与Visi-Pitch中使用的新的音调周期确定方法之间的相互作用。微光测量的幅度在两个小型计算机系统之间有所不同，部分原因是A/D转换器的幅度分辨率和记录噪声的差异。然而，两个闪烁数据集之间的相关性相对较高，这表明尽管存在幅度差异，但话语之间的相对变化是可比较的。
The purpose of this study was to compare jitter and shimmer data measured with three different analysis systems, the Visi-Pitch PC system (Pine Brook) and two systems based on minicomputers (Chicago and Denver), as a preliminary step toward establishing recording and analysis standards. The results show that, although similar hardware and software used at independent laboratories can yield similar findings, differences in recording hardware as well as recording and analysis procedures can result in important differences in perturbation findings. Jitter measurements obtained with the Visi-Pitch were not consistently in good agreement with jitter measurements obtained from the minicomputer systems due, in part, to an interaction between the Visi-Pitch internal filter selected during the recording process and the novel method of pitch period determination used in the Visi-Pitch. Magnitude of shimmer measurements differed between the two minicomputer systems, in part because of differences in amplitude resolution of the A/D converters and recording noise. The correlation between the two shimmer data sets was relatively high, however, indicating that relative changes across utterances were comparable in spite of magnitude differences.