Computer Application to Dynamic Palatography
Robert L. Paterson, William R. Proffit, Robert E. McGlone · The Journal of the Acoustical Society of America · 1971
This paper describes the use of a time-shared IBM 1800 system to obtain dynamic palatographic information during speech. Linguopalatal contact was recorded by miniature pressure transducers embedded in a thin appliance that covers the maxilla. These transducers are positioned around the alveolar ridge from left to right molar. Analog pressure signal processing by the computer permits the collection of considerable data for each subject and also the study of many more subjects. The basic operation is divided into acquisition and recovery. The signals are simultaneously recorded graphically and stored in the buffer memory. If the analog signals are satisfactory, they are saved; if not, the stimulus is again presented. Each speech item is automatically identified for the computer as the subject stimulus is generated. Recovery consists of same-day subject data and long-term group data. Peak pressures, integrated pressure-time values, and time sequences between transducer contacts and the acoustic signal are recorded. Examples of speech and swallow patterns will be presented.