Acceleration Sensor Based Estimates Of Subglottal Resonances: Short Vs. Long Vowels

The current version ACCV4 of our acceleration sensor device is presented and used to study the influence of vowel duration to the estimates of resonances of the subglottal system of 7 female and 9 male speakers. The sensor records movements in all three spatial directions below 5 kHz. It is gently pressed to the neck of the speaker in front of the cricothyroid ligament, a soft tissue in the lower part of the larynx. Linear prediction is used the estimate three resonances between 500 Hz and 2 kHz. Statistically significant differences in the estimates taken for the first two subglottal formants are found.