Session 3aMU: Aeroacoustics of Wind Instruments and Human Voice II 3aMU6. Synchronous visualization of multimodal measurements on lips and glottis: Comparison between brass instruments and the human voice production system
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چکیده
Brass instruments and the human voice production system are both composed of a vibrating "human valve" (constriction in a pipe) coupled to an acoustic resonator: lips coupled to the brass instrument or vocal folds coupled to the vocal tract. In both cases, the aeroacoustic coupling is responsible for the self-oscillations and a large variety of regimes. Additionally, brass instruments and voice share difficulties for the in-vivo measurement of the exciter activity. Hence, the development of a common tool is relevant. It is also relevant to explore the effect of some known differences between these systems, namely, the strength of the coupling and the physiological characteristics. This paper introduces components for the development of such a tool. First, two corpuses of multi-modal measurements are presented: one for a singer's larynx during sustained vowels, one for a musician's lips during sustained notes. They include high-speed-video recordings, electrical impedance measurements and audio recordings. Then, we introduce two estimation algorithms: one of the opening area waveforms from videos, one of the LF-model parameters on these waveforms. Moreover, we build a video tool displaying, synchronuously, these signals. Finally, this tool is exploited to exhibit common behaviors and relevant differences between brass instruments and human voice.
منابع مشابه
Synchronous visualization of multimodal measurements on lips and glottis: comparison between brass instruments and the human voice production system
متن کامل
Vocal tract resonances in speech, singing, and playing musical instruments.
IN BOTH THE VOICE AND MUSICAL WIND INSTRUMENTS, A VALVE (VOCAL FOLDS, LIPS, OR REED) LIES BETWEEN AN UPSTREAM AND DOWNSTREAM DUCT: trachea and vocal tract for the voice; vocal tract and bore for the instrument. Examining the structural similarities and functional differences gives insight into their operation and the duct-valve interactions. In speech and singing, vocal tract resonances usually...
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Progress made over the past decade in understanding the mechanisms of sound production in music wind instruments is reviewed. The behavior of air columns, horns, and fingerholes is now fairly well understood, and most recent interest centers on details of the sound generator — the reed in woodwinds, the lips in brass instruments, and the air jet in flute-family instruments. Not only do these ge...
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تاریخ انتشار 2013