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.
Hardware implementations of real‐time digital speech processing algorithms
