Ultrasonic registration of the fundamental frequency of a voice during normal speech
Nils‐Gunnar Holmer, Hans Erik Rundqvist · The Journal of the Acoustical Society of America · 1975
A continuous wave of ultrasound through the larynx is used to determine the fundamental frequency of the vocal folds during normal speech. The variation of the ultrasound intensity transmitted between two matched transducers through the vocal fold level is recorded. The apparatus used for these recordings is described. Different transducer positions are investigated and, further, the transducer geometry is discussed. Subject Classification: 70.20; 80.45.