Guillemin B J, Nguyen D T
J Speech Hear Res. 1984 Jun;27(2):311-7. doi: 10.1044/jshr.2702.311.
Durational measurements of frication, aspiration, prevoicing, and voice onset are often difficult to perform from the spectrogram, and the resolution is limited to about 5 ms. In many instances, a higher resolution can be obtained from a study of waveforms than from a study of spectrum. We present a microprocessor-based speech acquisition and processing system which uses waveform analysis techniques to extract measurements from the acoustic signal. The system is low cost and portable; it operates in "real time" and employs noninvasive data-capturing techniques. The usefulness of the system is demonstrated in the VOT measurement of CV clusters and in the measurement of fundamental frequency.
摩擦音、送气音、预发声和嗓音起始时间的时长测量通常很难通过频谱图来进行,并且分辨率限制在约5毫秒。在许多情况下,从波形研究中可获得比频谱研究更高的分辨率。我们提出了一种基于微处理器的语音采集和处理系统,该系统使用波形分析技术从声学信号中提取测量值。该系统成本低且便于携带;它实时运行并采用非侵入性数据采集技术。该系统的实用性在CV音节群的嗓音起始时间测量和基频测量中得到了证明。