An acoustic glottal source for vocal tract physical models. (17th October 2017)

• Record Type: Journal Article
• Authors: Hannukainen, Antti; Kuortti, Juha; Malinen, Jarmo; Ojalammi, Antti
• Is Part Of: Measurement science & technology. Volume 28:Number 11(2017:Nov.)
• Publication Date: 2017-10-17
• Subjects: acoustic measurements -- speech research -- vowels -- glottal source -- physical models; Physical measurements -- Periodicals; Scientific apparatus and instruments -- Periodicals; Equipment and Supplies -- Periodicals; Science -- instrumentation -- Periodicals; Technology -- instrumentation -- Periodicals; Mesures physiques -- Périodiques; Physical measurements; Scientific apparatus and instruments; Periodicals; 502.87
• DOI: 10.1088/1361-6501/aa85a6
• Languages: English
• ISSNs: 0957-0233

Abstract

Abstract: A sound source is proposed for the acoustic measurement of physical models of the human vocal tract. The physical models are produced by fast prototyping, based on magnetic resonance imaging during prolonged vowel production. The sound source, accompanied by custom signal processing algorithms, is used for two kinds of measurements from physical models of the vocal tract: (i) amplitude frequency response and resonant frequency measurements, and (ii) signal reconstructions at the source output according to a target pressure waveform with measurements at the mouth position. The proposed source and the software are validated by computational acoustics experiments and measurements on a physical model of the vocal tract corresponding to the vowels [ ] of a male speaker.