Thumwarin, Pitak

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Preferred name
Thumwarin, Pitak
Alternative Name
Thumwarin, P.
Main Affiliation
Email
pitak.th@kmitl.ac.th

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    Proposal of the concept of a breathing assist system for saxophone players with breathing problems
    (2019-07-01)
    Kato, Tomonori
    ;
    Shimazaki, Kohei
    ;
    Nundrakwang, Songmoung
    ;
    Chuprasert, Pavarit
    ;
    Thumwarin, Pitak
    This research aims to propose the concept of a breathing assist system for saxophone players with breathing problems. First, the quantity of pressure and air flow rate required to play an alto saxophone is determined by certain investigations and experiments. Second, the above-mentioned concept, which works like a pneumatic master-slave amplifier, is proposed and the details of each component are explained.
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    Refinement of a Thai flute-playing robot in Thai style
    (2018-08-13)
    Kato, Tomonori
    ;
    Shimazaki, Kohei
    ;
    Higashijima, Kenya
    ;
    Tokunaga, Ryoji
    ;
    Na Ayuthaya, Phonlasit Thinnakorn
    This research aims to establish a Thai flute (khlui)-playing robot with realistic and natural sounds in traditional Thai style. First, an overview of the developed robot system is presented. Second, the refinement of the blown air flow rate control part, including the choice of the flow sensor, and its calibration method of dynamic characteristics are explained. Third, the refinement of the fingering control part is explained followed by an explanation of how to realize the expression, called glissando (i.e., gliding sound as a group of notes are connected). Finally, the proposed blown air flow control part and the proposed fingering force control part are combined, and the flow rate and the fingering force are simultaneously controlled to realize special sound effects, such as pure tremolo and vibrato.
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    Acoustical analysis of the thai duct flute, Khlui
    (2020-07-01)
    Chitanont, Nachanant
    ;
    Padthong, Padcharawan
    ;
    Sinpru, Bhumrape
    ;
    Sriseang, Nutwarot
    ;
    Thumwarin, Pitak
    The purpose of this paper is to study the acoustical model of the Thai traditional duct flute, khlui. The relation between physical characteristics of the flute, such as acoustic length, playing hole, temperature effect, etc., and the frequency of each musical note of khluis is investigated. First, the fundamental frequencies of each finger hole of 10 khluis are measured. Then, data between the ideal musical notes and measured notes of khlui are analysed. The results indicate that the production process of khlui still has limits in accuracy. Finally, in order to develop a production standard of the Thai duct flute, a model of khlui is designed. The musical notes of the designed flute are measured. The accuracy of the designed flute is investigated to support the understanding of its acoustical model.
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