A ring-shaped LTCC/HTCC sensor for detection of finger forces in clarinet playing

Weilguni, Michael; Smetana, Walter; Radosavlevic, G.; Nicolics, J.; Hofmann, Alex; Goebl, Werner

doi:10.1109/icsens.2012.6411244

Cited by 2 publications

(5 citation statements)

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“…Furthermore, some of the ancillary gestures may be responsible for the technical problems in the finger force measurements. Although the sensors were especially designed for force measurements at the tone holes (Weilguni, 2013 ), unexpected forces occurred that caused damage on some sensor cells during this study. These damages happened when the performers were sliding between the keys or applied a torsional motion to the force sensors through flapping their arms.…”

Section: Discussionmentioning

confidence: 99%

“…The experimental setup consisted of a Viennese clarinet in Bb (by Martin Foag, Hafenhofen, Germany), with special ring-shaped force sensors (see Figure 1 , right) attached to the six main tone holes of the instrument (Weilguni, 2013 ). Each sensor ring contained three measurement cells which captured the load from the finger applied to the sensor when a tone hole is closed.…”

Section: Methodsmentioning

confidence: 99%

“…For the finger force sensors, calibration data was provided by the developers to convert the captured voltages of the sensors into force in Newtons (details about the properties of the sensors can be found in Weilguni, 2013 ). The force profiles of the three measurement cells were added to a compound force profile per sensor ring.…”

Section: Methodsmentioning

confidence: 99%

“…It turned out during the experiment that the design of the finger force sensors was challenged by the present real-world application. The three measurement cells were glued with conductive silver-epoxy adhesive into each sensor ring (Weilguni, 2013 ). This rigid fixation was not able to handle the stress over the entire experiment and caused occasional artifacts.…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Finger Forces in Clarinet Playing

Hofmann

Goebl

2016

Front. Psychol.

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Clarinettists close and open multiple tone holes to alter the pitch of the tones. Their fingering technique must be fast, precise, and coordinated with the tongue articulation. In this empirical study, finger force profiles and tongue techniques of clarinet students (N = 17) and professional clarinettists (N = 6) were investigated under controlled performance conditions. First, in an expressive-performance task, eight selected excerpts from the first Weber Concerto were performed. These excerpts were chosen to fit in a 2 × 2 × 2 design (register: low–high; tempo: slow–fast, dynamics: soft–loud). There was an additional condition controlled by the experimenter, which determined the expression levels (low–high) of the performers. Second, a technical-exercise task, an isochronous 23-tone melody was designed that required different effectors to produce the sequence (finger-only, tongue-only, combined tongue-finger actions). The melody was performed in three tempo conditions (slow, medium, fast) in a synchronization-continuation paradigm. Participants played on a sensor-equipped Viennese clarinet, which tracked finger forces and reed oscillations simultaneously. From the data, average finger force (Fmean) and peak force (Fmax) were calculated. The overall finger forces were low (Fmean = 1.17 N, Fmax = 3.05 N) compared to those on other musical instruments (e.g., guitar). Participants applied the largest finger forces during the high expression level performance conditions (Fmean = 1.21 N). For the technical exercise task, timing and articulation information were extracted from the reed signal. Here, the timing precision of the fingers deteriorated the timing precision of the tongue for combined tongue-finger actions, especially for faster tempi. Although individual finger force profiles were overlapping, the group of professional players applied less finger force overall (Fmean = 0.54 N). Such sensor instruments provide useful insights into player-instrument interactions and can also be used in the future to give feedback to students in various learning and practising situations.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Finger Forces in Clarinet Playing

Hofmann

Goebl

2016

Front. Psychol.

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“…The technologies most recurrent are based on flex/force sensors [8][9], inertial sensors [10]- [15] or on their combination [16]; these devices belong to the field of the biomedical instrumentation aimed at the assistance of patients with movement disorders and disabilities [17], but also as means of human-robot/machine interaction or as hardware controllers through methods of gesture recognition [18]. First academic studies regarding sensorized wearable rings are emerged [19] and new small companies composed by team of engineers, scientist, product managers, PhD and master recipients are investing in the wearable tech, putting in presale devices of various kinds, including rings equipped with sensors [20].…”

Section: Introductionmentioning

confidence: 99%

Preliminary design issues for inertial rings in Ambient Assisted Living applications

Esposito

Cavallo

2015

2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings

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A wearable 9dof inertial system able to measure hand posture and movement is presented. The design issues for the deployment of measurement instrumentation based on no-invasive ring-shaped inertial units and of a wireless sensor network by them composed are described. Compromises between the physical and functional proprieties of a wearable device and the requirements for the hardware development are discussed with attention to an handsome design concept aesthetically effective. Techniques of power saving based on an optimized firmware programming are mentioned to realize a performing battery powered system featured by an exhaustive operation time. The printed circuit board (PCB) design rules, the choice of the components and materials, the fusion of inertial data with optical sensors outcomes are also discussed. Previous experience in the field of wearable systems are mentioned in the presentation of the results that emphasize the functional and application potential of a 9dof inertial system integrated in a ring-shaped device. © 2015 IEEE

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A ring-shaped LTCC/HTCC sensor for detection of finger forces in clarinet playing

Cited by 2 publications

References 7 publications

Finger Forces in Clarinet Playing

Finger Forces in Clarinet Playing

Preliminary design issues for inertial rings in Ambient Assisted Living applications

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