Synchronous Multimodal Measurements on Lips and Glottis: Comparison Between Two Human-Valve Oscillating Systems

Hézard, Thomas; Fréour, Vincent; Causse, René; Hélie, Thomas; Scavone, Gary P.

doi:10.3813/aaa.918796

Cited by 8 publications

(3 citation statements)

References 38 publications

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“…Some experimental studies on artificial player systems [6,16], or human performers [2,[17][18][19][20], have shed some light on the dynamics of the lip-reed valve and proposed some values for the mechanical parameters of the lips, which are derived from frequency response measurements. Other strategies, based on numerical optimization techniques applied to the internal pressure, have been proposed in woodwind instruments in order to derive the mechanical parameters of a reed model from experimental measurements [21,22].…”

Section: Introductionmentioning

confidence: 99%

Parameter identification of a physical model of brass instruments by constrained continuation

et al. 2022

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Numerical continuation using the Asymptotic Numerical Method (ANM), together with the Harmonic Balance Method (HBM), makes it possible to follow the periodic solutions of non-linear dynamical systems such as physical models of wind instruments. This has been recently applied to practical problems such as the categorization of musical instruments from the calculated bifurcation diagrams [V. Fréour et al. Journal of the Acoustical Society of America 148 (2020) https://doi.org/10.1121/10.0001603]. Nevertheless, one problem often encountered concerns the uncertainty on some parameters of the model (reed parameters in particular), the values of which are set almost arbitrarily because they are too difficult to measure experimentally. In this work we propose a novel approach where constraints, defined from experimental measurements, are added to the system. This operation allows uncertain parameters of the model to be relaxed and the continuation of the periodic solution with constraints to be performed. It is thus possible to quantify the variations of the relaxed parameters along the solution branch. The application of this technique to a physical model of a trumpet is presented in this paper, with constraints derived from experimental measurements on a trumpet player.

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Section: Introductionmentioning

confidence: 99%

Parameter identification of a physical model of brass instruments by constrained continuation

et al. 2022

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“…Brass musicians' embouchure data are of interest from a scientific as well as from a pedagogical perspective. In the last years, efforts to develop increasingly accurate, complex and expensive measurement techniques for research into sound production by brass musicians have notably led to new insights in this field [1][2][3]. However, the measurement setups that are currently used to acquire experimental data can most often only be used to collect data from a limited number of musicians, as they are constrained to one location (e.g., a laboratory) or made available for a limited period of time only.…”

Section: Introductionmentioning

confidence: 99%

On the capabilities of a 'digital mouthpiece' for real-time recording of embouchure parameters for brass musicians

Amann,

Chatziioannou,

Nicolay

et al. 2022

Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023

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The real-time acquisition of relevant acoustic parameters in brass instruments' embouchure usually requires expensive measurement setups. This paper describes the operating principle as well as the preliminary design of a digital and connected mouthpiece, which makes it possible to 1. perform, 2. wirelessly transfer to a mobile device, and 3. process and display these measurements, in an easy way and at low cost. The digital mouthpiece is based on a standard mouthpiece equipped with several microelectronic components and sensors. It enables the measurement, while playing, of the separate forces exerted by the upper and lower lips on the mouthpiece and of the upstream and downstream pressure. The system also includes a microphone to identify and analyse the possible correlations between the applied forces, the measured pressures, the sound frequency, and the sound pressure level. In this paper, we also present the first experimental results obtained with the digital mouthpiece, in the frame of test runs conducted with musicians from the Gustav Mahler University in Austria.

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“…The much greater length of tubing compared to the human vocal tract also means that the possible resonating frequencies of the tube are very much determined by the overtone series except for very high registers where the peaks of the impedance spectrum become progressively smaller (cf. Hézard et al, 2014; see Wolfe, 2019 for an excellent non-technical description of brass instrument acoustics).…”

Section: Introductionmentioning

confidence: 99%

Native Language Influence on Brass Instrument Performance: An Application of Generalized Additive Mixed Models (GAMMs) to Midsagittal Ultrasound Images of the Tongue

2019

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This paper presents the findings of an ultrasound study of 10 New Zealand English and 10 Tongan-speaking trombone players, to determine whether there is an influence of native language speech production on trombone performance. Trombone players’ midsagittal tongue shapes were recorded while reading wordlists and during sustained note productions, and tongue surface contours traced. After normalizing to account for differences in vocal tract shape and ultrasound transducer orientation, we used generalized additive mixed models (GAMMs) to estimate average tongue surface shapes used by the players from the two language groups when producing notes at different pitches and intensities, and during the production of the monophthongs in their native languages. The average midsagittal tongue contours predicted by our models show a statistically robust difference at the back of the tongue distinguishing the two groups, where the New Zealand English players display an overall more retracted tongue position; however, tongue shape during playing does not directly map onto vowel tongue shapes as prescribed by the pedagogical literature. While the New Zealand English-speaking participants employed a playing tongue shape approximating schwa and the vowel used in the word ‘lot,’ the Tongan participants used a tongue shape loosely patterning with the back vowels /o/ and /u/. We argue that these findings represent evidence for native language influence on brass instrument performance; however, this influence seems to be secondary to more basic constraints of brass playing related to airflow requirements and acoustical considerations, with the vocal tract configurations observed across both groups satisfying these conditions in different ways. Our findings furthermore provide evidence for the functional independence of various sections of the tongue and indicate that speech production, itself an acquired motor skill, can influence another skilled behavior via motor memory of vocal tract gestures forming the basis of local optimization processes to arrive at a suitable tongue shape for sustained note production.

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Synchronous Multimodal Measurements on Lips and Glottis: Comparison Between Two Human-Valve Oscillating Systems

Cited by 8 publications

References 38 publications

Parameter identification of a physical model of brass instruments by constrained continuation

Parameter identification of a physical model of brass instruments by constrained continuation

On the capabilities of a 'digital mouthpiece' for real-time recording of embouchure parameters for brass musicians

Native Language Influence on Brass Instrument Performance: An Application of Generalized Additive Mixed Models (GAMMs) to Midsagittal Ultrasound Images of the Tongue

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