Second International Conference on Spoken Language Processing (ICSLP'92)
Banff, Alberta, Canada
This paper describes a microcomputer-based system that is being developed to analyze and display laryngograph signals for clinical applications. The system uses commercially-available hardware to digitize and analyze laryngograph signals. After digitization, the signal is smoothed using a moving-average technique, in order to remove float caused by vertical movement of the larynx during phonation. Digital-signal-processing techniques are then used to analyze and display laryngeal parameters including pitch, open quotient, jitter and periodicity index (as measured by cepstral amplitude). The system provides real-time analysis and display for some of the above parameters, and long-term averaging and statistical analysis for others. The system is designed for use by speech clinicians, and it is being tested with normal and pathological voices.
Bibliographic reference. Eady, S. / Dickson, B. Craig / Snell, Roy C. / Woolsey, J. / Ollek, P. / Wynrib, A. / Clayards, J. (1992): "A microcomputer-based system for real-time analysis and display of laryngograph signals", In ICSLP-1992, 1601-1604.