What is the main advantage of measuring formant frequencies on a computer?

The primary advantage of measuring formant frequencies on a computer lies in the quick extrapolation of formant values. Computers allow for rapid analysis and visualization of speech signals, which can significantly speed up the process of identifying and measuring formants—resonant frequencies of the vocal tract that characterize vowel sounds. This efficiency is particularly valuable in speech science, where numerous samples may need to be analyzed, allowing for more extensive data collection and experimental analysis in a shorter period.

While it is important to acknowledge that manual measurement is still a viable method, it lacks the speed and precision facilitated by computerized systems. The option referring to sound spectrographs suggests a limitation in measurement tools, rather than a comprehensive capability. Although computers can reduce measurement error to some extent by providing advanced analysis tools and software, they do not eliminate all errors entirely. Measurement errors may still arise from various sources, such as background noise or variations in speech production. Therefore, the ability to quickly extrapolate formant values is the most significant advantage in utilizing computer technology for this purpose.