Development of Prototype of Whistling Sound Counter based on Piezoelectric Bone Conduction

Mori, Masahiro; Ogihara, Mitsuhiro; Kyuu, Ten; Taniguchi, Shuji; Kato, Shozo; Araki, Chikahiro

doi:10.1541/ieejfms.131.246

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…One third is people who cannot produce a whistling sound. 5 According to Mukai, fiberscope observation of the larynx in wind musicians showed that those who could not whistle blew with open glottis. 6 This suggests that the area of glottis opening affects whistling.…”

Section: Proportion Of People Who Can Whistlementioning

confidence: 99%

Frequency response of the vocal tract considering the glottis opening area during human whistling

Mori

Fukuda

2020

Elect Comm in Japan

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Whistling has become more popular in recent years. “Whistling competitions” are being held in Japan since 2005. However, it can be difficult to teach some people how to whistle. One of the reasons is that theoretical information, including clear descriptions about how to whistle is scant. A better understanding of the principle would be beneficial to both the trainer and the trainee. In this study, the glottis opening area during whistling was measured via endoscopic imaging data. The amplitude characteristics of the vocal tract were determined by measuring the glottis opening area during whistling and calculating the transfer function of the vocal tract in conjunction with that area. By considering the glottis opening area, we could logically explain the fact that, in reality, some notes corresponding to theoretically calculated resonance frequencies did not occur, and we could obtain a calculation result that was close to the physical model. Furthermore, because the calculation result close to the physical model was only associated with certain glottis opening areas, it is evident that not only the shape of the vocal tract and the lip opening area, but also the glottis opening area is an important component of sound production during human whistling.

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Section: Proportion Of People Who Can Whistlementioning

confidence: 99%

Frequency response of the vocal tract considering the glottis opening area during human whistling

Mori

Fukuda

2020

Elect Comm in Japan

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Application of a Musical Whistling Certificate Examination System as a Group Examination

et al. 2011

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Recently, some professional whistlers have set up music schools to teach musical whistling. However, so far, there is no licensed examination for musical whistling. In this paper, we propose an examination system for evaluating musical whistling.The system conducts an examination in musical whistling on a personal computer (PC). It can be used to award four grades, from the second to the fifth. These grades are designed according to the standards adopted by the school for musical whistling established by the Japanese professional whistler Moku-San. It is expected that the group examination of this examination is held in the examination center where other general certification examinations are held. Thus, the influence of the whistle sound on the PC microphone normally used should be considered. For this purpose, we examined the feasibility of using a bone-conductive microphone for a musical whistling certificate examination system. This paper shows that the proposed system in which bone-transmitted sounds are considered gives good performance under a noisy environment, as demonstrated in a group examination of musical whistling using bone-transmitted sounds. The timing of a candidates whistling tends to not match because the applause sound output from the PC was inaudible for a person older than 60 years.

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Development of Prototype of Whistling Sound Counter based on Piezoelectric Bone Conduction

Cited by 2 publications

References 4 publications

Frequency response of the vocal tract considering the glottis opening area during human whistling

Frequency response of the vocal tract considering the glottis opening area during human whistling

Application of a Musical Whistling Certificate Examination System as a Group Examination

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