Development of an electrolabiograph embedded in a trombone mouthpiece for the study of lip oscillation mechanisms in brass instrument performance
Keywords:
Contact areas, Degree of contact, In-vivo, Instrument performance, Lip motions, Oscillation mechanismAbstract
A study that examines a method for analyzing lip motion in trombone players based on the measurement of lip conductivity is presented. For the purpose of in-vivo investigations on brass players' lips we developed an electrolabiograph (ELG) based on the principle electroglottography (EGG) as first presented by Fabre in 1956. The two electrodes are located across the lips with one electrode located on the upper lip and the other one on the lower lip. Therefore, the ELG signal is assumed to be proportional to the degree of contact of the lips. Since ELG amplitude is proportional to the degree of contact between the lips, the contact area at the lip interface decreases and the lips tend to open when the ELG amplitude decreases. Phase values obtained for the French horn are clearly lower than those obtained for the trombone and trumpet, possibility because of the specific geometry of the French horn bore and mouthpiece.Published
How to Cite
Issue
Section
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.